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Research Progress and Application Prospect of Navigation Mechanism in Pigeon SHAO Linlei, CHEN Peiqi, XIE Zeting, XU Haoze, LIN Suiyuan, LIN Chuanghao, GUO Shiqi, WU Zhongping, CHEN Yitian, LIANG Yayan, ZHANG Xumeng Guangdong Journal of Animal and Veterinary Science    2025, 50 (2): 71-78.   DOI: 10.19978/j.cnki.xmsy.2025.02.11 Abstract （446）      PDF （1586KB）（3722）       Knowledge map    Save In ancient times，pigeons became communication tools due to their navigation ability and good homing performance. Although researchers have extensively explored the navigation mechanism of pigeons over the years，its navigation mechanism is still unclear. This article elaborates on the current research on pigeon flight navigation mechanism from the perspective of natural factors such as solar compass，geomagnetic field，visual clues，olfactory clues，etc. It clarifies that pigeons use solar information as the primary clue to guide navigation behavior，and use geomagnetic information，sensory information，etc. to assist navigation. It also introduces the research progress of using pigeon flight navigation mechanism to develop biological robots，manned flight，and navigation technology，and looks forward to the future development of related technologies. This article summarizes the theoretical research， development，and application of pigeon flight navigation mechanism，providing materials for the future application of related technologies. Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (6): 104-108.   DOI: 10.19978/j.cnki.xmsy.2024.06.17 Abstract （485）      PDF （1207KB）（2141）       Knowledge map    Save Reference | Related Articles | Metrics

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Diagnosis，Prevention and Control of Mixed Infection Cases in the Reserve Breeding Pigeons Flock of a Large⁃scale Pigeon Farm in Guangdong ZHU Xiaohua, CHEN Xiaobing, ZOU Yue, GU Xingge, BAI Yinshan, LIU Guoqian Guangdong Journal of Animal and Veterinary Science    2025, 50 (1): 99-104.   DOI: 10.19978/j.cnki.xmsy.2025.01.16 Abstract （242）      PDF （2070KB）（1417）       Knowledge map    Save Through epidemiological investigation，clinical symptom observation，necropsy analysis，bacterial isolation and identification，and viral detection，this study examined multi⁃pathogen infections and drug susceptibility in reserve breeding pigeons from a large⁃scale pigeon farm in Guangdong under high⁃temperature and high⁃humidity conditions. The results revealed that the diseased pigeon flock was primarily infected with Newcastle disease virus （NDV），H9N2 subtype avian influenza virus，and pigeon circovirus（PiCV），accompanied by co⁃infections with Escherichia coli and Salmonella. Drug susceptibility testing showed that the pathogens were highly sensitive to gentamicin.The findings suggest that PiCV infection may enhance the susceptibility of pigeons to H9N2 avian influenza and play a critical role in mixed infections. This study provides clinical evidence for understanding the mechanisms of mixed infections in pigeons under immunosuppressive conditions and offers valuable insights for the comprehensive prevention and control of pigeon diseases. Reference | Related Articles | Metrics

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Comparative study on the growth，muscle quality and benefit of Macrobrachium rosenbergii under two culture models CHEN Xiaoying, HUANG Wen, ZHOU Bingquan, SUN Yuping Guangdong Journal of Animal and Veterinary Science    2025, 50 (4): 34-39.   DOI: 10.19978/j.cnki.xmsy.2025.04.06 Abstract （223）      PDF （1096KB）（1340）       Knowledge map    Save Intensice pond culture and“cultivate Hydrilla verticillata and breeding shrimp”are the two most typical culture models of macrobrachium rosenbergii in Guangdong province. This study was invetigate to comparative the effects of two cultrue molels on growth performance，body composition，muscle amino acid composition and economic benefit of M.rosenbergii. The results showed that the final body size，condiction factor and freshness of M. rosenbergii produced under the two cultrue models including intensice pond culture and“cultivate H. verticillata and breeding shrimp”had significant difference.The contents of crude protein and calcium composition in the whole body， essential amino acids，flavorable amino acids and total amino acids in the shrimp muscle under the“cultivate H.verticillata and breeding shrimp”model were significantly higher than those under the intensice pond model. The income，net profit，input��output ratio and cost profit margin of“cultivate H. verticillata and breeding shrimp”model were obviously higher than that of the intensice pond model. These results indicated that the M. rosenbergii produced under the the“cultivate H. verticillata and breeding shrimp”model is more in line with the taste of producers and consumers，and it is suggested to adopt it in production practice and promote it. The results provided a reference for the selection of culture mode of M. rosenbergii. Reference | Related Articles | Metrics

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Research Progress on the Canine Social Behavior and Human⁃dog Relationship HUANG Huiwen, LIU Yuwen, GUO Yan, DENG Baichuan, ZHANG Lingna Guangdong Journal of Animal and Veterinary Science    2025, 50 (1): 72-81.   DOI: 10.19978/j.cnki.xmsy.2025.01.12 Abstract （731）      PDF （1204KB）（1324）       Knowledge map    Save Throughout the long history of co⁃evolution with humans，dogs have developed a superior ability in the understanding and utilization of social signals within human society compared to other animals. While there has been considerable foreign research on dog social behavior and cognition and the human⁃dog relationship，this area of study is relatively new in China. This review summarizes the research progress on dog social cognitive abilities in human⁃dog interactions，focusing on the understanding and use of human social signals by dogs，their ability to send social signals to humans，and factors that influence dog social abilities with humans（i.e.，environmental，physiological，and genetic factors）. Currently，human understanding of dog social behavior is inadequate，with most research confined to laboratory settings and having limited practical application. Further research could provide scientific evidence for improving dog social behavior and human⁃dog interactions，fostering a more harmonious relationship between humans and dogs. Reference | Related Articles | Metrics

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Diagnosis and Treatment of Urinary Obstruction in a Neutered Male Cat DONG Chunlin, YE Junjie, SONG Jia, LIU Shuyang Guangdong Journal of Animal and Veterinary Science    2025, 50 (6): 100-105.   DOI: 10.19978/j.cnki.xmsy.2025.06.16 Abstract （150）      PDF （2570KB）（1293）       Knowledge map    Save This study aims to explore the diagnostic and therapeutic methods for feline urinary retention. As a common manifestation of Feline Lower Urinary Tract Disease（FLUTD），feline urinary retention can lead to systemic infection or even death in severe cases. In this case，feline urinary retention was initially suspected through inspection，inquiry，and palpation；further confirmed by imaging examinations including DR and abdominal color Doppler ultrasound；and finally diagnosed based on the results of blood routine，biochemical indicators，and coagulation function tests. After 3 days of conservative treatment，the cat's symptoms showed no significant improvement，so perineal urethrostomy was performed. The cat achieved good postoperative recovery and a favorable prognosis. This case indicates that for urinary retention cases unresponsive to conservative treatment，perineal urethrostomy can effectively improve the quality of life of affected cats，providing valuable reference for clinical practice. Reference | Related Articles | Metrics

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Surveillance and Analysis of Avian Leukosis in Milin Tibetan Chicken XU Xinchun, HE Jingyi, YAN Xia, CHEN Peng, JIA Shaoyan, JI Jian, LUO Chenglong Guangdong Journal of Animal and Veterinary Science    2025, 50 (4): 40-44.   DOI: 10.19978/j.cnki.xmsy.2025.04.07 Abstract （168）      PDF （1516KB）（1250）       Knowledge map    Save To explore the detection effect of different detection methods and the feasibility of the combination of avian leukemia virus（ALV）infection and AL purification，the study in chicken，using ALV p27 antigen ELISA method and ALV⁃JPCR nucleic acid detection method，from 2020 to 2024 a total of 1 333 randomly collected whole blood samples for ALV detection analysis. The results showed that in Tibetan chickens，the positive rate of ALV p27 antigen ELISA test was 15.42%，ALV⁃JPCR nucleic acid test was 2.49%. The total positive rate of the two detection methods was 17.23%，among which only 3 individuals were positive for the two detection methods，accounting for 3.95% of the total positive individuals. In addition，since AL purification in 2020 to 2024，the AL positive rate of milin Tibetan chickens decreased from 17.23% to 0 between 2020 and 2024. The results show that there are mixed infection of ALV⁃J subgroup and other subgroups in the flock；the combination of the two methods can greatly improve the ALV detection rate and can provide reference for the actual purification work；the AL purification of milin Tibetan chicken group is significant，which basically realizes the effective control of AL in the flock，which can provide data support for the AL prevention and control purification of this species. Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (6): 57-61.   DOI: 10.19978/j.cnki.xmsy.2024.06.09 Abstract （335）      PDF （1298KB）（1198）       Knowledge map    Save Reference | Related Articles | Metrics

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Advances and Lessons of Foreign Broiler Breeding Industry LI Weimin, LUO Wei, JI Jian, LUO Chenglong Guangdong Journal of Animal and Veterinary Science    2025, 50 (2): 46-50.   DOI: 10.19978/j.cnki.xmsy.2025.02.07 Abstract （282）      PDF （988KB）（1085）       Knowledge map    Save This paper systematically summarizes the advances of the White⁃feathered broiler breeding industry in concerned developed countries，such as the United States，France，and the Netherlands. It also analyzes the two leading commercial breeding enterprises that dominate the white⁃feathered broiler chicken breed sources：Aviagen，a subsidiary of the German EW Group，and Cobb⁃Vantress，a subsidiary of the Tyson Foods，Inc. of the United States. And thus，the successful experiences and lessons that can be learnt from foreign white⁃feathered broiler chicken breeding are condensed，which can help formulate our strategies for ensuring the security and self⁃sufficiency of broiler breeding industry. Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (4): 24-34.   DOI: 10.19978/j.cnki.xmsy.2024.04.04 Abstract （274）      PDF （2704KB）（1034）       Knowledge map    Save Reference | Related Articles | Metrics

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Research on the Artificial Breeding Techniques of Bungarus Multicinctus Blyth CHEN Xiaotong, LIN Hui, HUANG Mian, CHEN Xuanjiao, WEI Wenkang, CHEN Weiping, CHAO Zhi Guangdong Journal of Animal and Veterinary Science    2025, 50 (1): 93-98.   DOI: 10.19978/j.cnki.xmsy.2025.01.15 Abstract （681）      PDF （2228KB）（961）       Knowledge map    Save Abstract：Jinqian Baihua She is a highly-demanded precious crude drug derived from the dried juvenile body of Bungarus multicinctus Blyth（Yin Huan She）. It is necessary to promote and standardize the artificial breeding of B. multicinctus to assure its sustainable development. In this article，some explorations had been conducted on adult snake breeding，snake egg hatching，and infant snake nurturing. In terms of adult snake breeding，a breeding model of“multi-layer three-dimensional snake house”was proposed，and the layout of breeding boxes and specifications of breeding equipment were listed；an environmental humidity of 60%-65% was found to be suitable for the growth of B. multicinctus. In terms of hatching，it was found the eggs had a high hatching rate in yellow sandy soil at 27 ℃ and 88% humidity，and an approach for moisturizing the eggs was proposed. In terms of infant snakes nurturing，some first feeding bait were tested，among which newly hatched pond loach［Misgurnus anguillicaudatus（Cantor）］was the most preferred. The research might be valuable in the scientific breeding of B. multicinctus and the production of Jinqian Baihua She for reference. Reference | Related Articles | Metrics

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Causes of Odor in Pet Feces and its Improvement Mechanism LUO Jun, LUO Huayi, DENG Baichuan Guangdong Journal of Animal and Veterinary Science    2025, 50 (2): 79-85.   DOI: 10.19978/j.cnki.xmsy.2025.02.12 Abstract （380）      PDF （1050KB）（952）       Knowledge map    Save The problem of pet feces is not only related to the health status of pets，but also closely related to environmental sanitation and human health. This paper reviews the causes of pet manure odor，odor components and the research and application progress of pet manure deodorization technology. From the perspective of safety， efficiency and sustainable development，the research hotspots of pet manure deodorization were summarized， including specific nutrient regulation，microbial deodorization and biological enzymatic deodorization. In view of the complexity of odor components，a comprehensive strategy from both source and end application is proposed. Application in the source，improve the digestion and absorption rate of nutrients，reduce the formation of odor precursors；in the end application，the transformation and degradation of malodorous organic matter，improve the efficiency of manure deodorization，in order to improve the pet environment and create a harmonious ecology of human pet symbiosis to provide a reference. Reference | Related Articles | Metrics

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A Discussion on the Hatching Technology of Lion's Head Goose Eggs DU Ye, QIU Lijun Guangdong Journal of Animal and Veterinary Science    2025, 50 (4): 67-72.   DOI: 10.19978/j.cnki.xmsy.2025.04.11 Abstract （186）      PDF （1011KB）（939）       Knowledge map    Save The Lion⁃head Gooseis originally produced in Chaoshan area and is known as“the king of goose in the world”. Its size is large，growth speed is fast and economic value is high. Lion ⁃ head Goose eggs have the characteristics of large size，hard shell and thick shell membrane，and the hatching process is special. Aiming at the problems of temperature control， humidity management， ventilation exchange， egg turning frequency， egg illumination time and technique of hatching，a series of technical points and parameters were put forward in order to improve hatching rate and healthy rate of Lion⁃head Goose eggs. Provide scientific guidance for breeders，thereby enhancing economic and social benefits. Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (6): 50-56.   DOI: 10.19978/j.cnki.xmsy.2024.06.08 Abstract （377）      PDF （1076KB）（934）       Knowledge map    Save Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (6): 90-98.   DOI: 10.19978/j.cnki.xmsy.2024.06.15 Abstract （494）      PDF （1359KB）（924）       Knowledge map    Save Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (6): 62-66.   DOI: 10.19978/j.cnki.xmsy.2024.06.10 Abstract （230）      PDF （1043KB）（914）       Knowledge map    Save Reference | Related Articles | Metrics

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Nutritional Value of Non - conventional Oilseed Meal and Its Application of Fermented Feed in Broiler Production LEI Yuheng, Guo Zhaowen, SONG Min, MA Xianyong, CUI Yiyan, YU Miao Guangdong Journal of Animal and Veterinary Science    2025, 50 (3): 71-81.   DOI: 10.19978/j.cnki.xmsy.2025.03.11 Abstract （242）      PDF （1056KB）（905）       Knowledge map    Save Miscellaneous meal refers to the by⁃product from oil crops after extraction，including rapeseed meal， cottonseed meal，peanut meal and sunflower seed meal. It has high yield and low price，and is rich in protein，fat， and minerals，which make it a valuable unconventional feedstock. However，the high levels of anti⁃nutritional factors present such as crude fiber，tannins，phytic acid and thioglycoside in miscellaneous meal not only impede the digestion and absorption of nutrients but also have toxicological effects，severely constraining the feed utilization of miscellaneous meal. With the advancement and widespread adoption of biotechnological approaches in animal feed production，fermentation of feed raw materials offers a distinctive advantage. Microbial fermentation facilitates the reduction of anti⁃nutrition factors in miscellaneous meal and breaks down indigestible or poorly utilized components into readily absorbable small molecules，enhancing digestion and utilization efficiency of animals. Currently，lactic acid bacteria，bacillus，yeast，and mold are the predominant microorganisms employed in the fermentation of miscellaneous meals. Fermentation also generates valuable metabolites，providing a rich source of probiotics for animals.Reasonable utilization of miscellaneous meal not only save conventional feed resources，alleviate the shortage of domestic feed resources and the situation of“human and animal competition for food”，but also address environmental pollution caused by waste discharge. Miscellaneous meal has broad application prospects in animal production. This paper reviews the nutritional value of miscellaneous meal，changes in nutritional components and anti⁃ nutritional factors before and after fermentation，as well as the application effect of fermented feed in broiler production. It also summarizes the current challenges in the utilization of miscellaneous meal，in order to provide theoretical basis for the application of fermented miscellaneous meal in broiler production. Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (5): 7-13.   DOI: 10.19978/j.cnki.xmsy.2024.05.02 Abstract （418）      PDF （1017KB）（824）       Knowledge map    Save Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (6): 109-112.   DOI: 10.19978/j.cnki.xmsy.2024.06.18 Abstract （262）      PDF （1541KB）（815）       Knowledge map    Save Reference | Related Articles | Metrics

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Effects of Different Antipruritic Drugs in Canine Pruritus SHI Guanwen, OU Zhaojia, LONG Haibin, RAO Gan, HE Jiaxin, HU Minhua Guangdong Journal of Animal and Veterinary Science    2025, 50 (2): 110-116.   DOI: 10.19978/j.cnki.xmsy.2025.02.17 Abstract （221）      PDF （1119KB）（759）       Knowledge map    Save In order to improve the management of dog pruritus and improve the quality of life and animal welfare， 18 dogs with“severe pruritus”grade were selected by visual analogue scale（PVAS）. Olatinib maleate，IL ⁃ 31 monoclonal antibody， peramine， dexamethasone and prednisolone were used respectively. The onset speed， antipruritic effect and adverse reactions of the drugs were compared. The results showed that olatinib had the most rapid and significant antipruritic effect after 4 hours of treatment，and IL ⁃ 31 monoclonal antibody had the most significant antipruritic effect after 8，24，48 and 72 hours of treatment. Dexamethasone and prednisolone caused a significant increase in white blood cells and neutrophils in the affected dogs，and the other treatments were normal. In conclusion，olatinib maleate and IL ⁃ 31 monoclonal antibody have obvious advantages in the speed of onset， antipruritic effect and safety. Reference | Related Articles | Metrics

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Reasearch Progress on Animal Models of Corneal Defects in Laboratory Animals LIN Renzhao, LIUYan, TANG Yantao, ZHU Hongchen, GAO Yanan, CHEN Qiang Guangdong Journal of Animal and Veterinary Science    2025, 50 (2): 86-90.   DOI: 10.19978/j.cnki.xmsy.2025.02.13 Abstract （244）      PDF （986KB）（748）       Knowledge map    Save The review provides a systematic compilation of key preparation techniques，evaluation criteria，and their applications and limitations in ophthalmic research in animal models of corneal defects. By simulating human corneal epithelial injury in animal corneas by means of physical scraping or chemical burns，these models are essential for unraveling the mechanisms of corneal repair，screening drugs and developing new therapies. Despite the structural differences between animal and human corneas and the challenges of model reproducibility，models can be effectively evaluated by fluorescein staining，slit lamp microscopy，and anterior eye segment OCT. Further research shall be devoted to improving the clinical utility of the model and translating the findings into clinical applications to improve the outcomes of patients with keratoconus，thereby improving the quality of life of the patients. Reference | Related Articles | Metrics

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Application of Clostridium butyricum in Livestock，Poultry，and Aquaculture CHEN Weijun, LUO Weitao, HUANG Jiaming, CHEN Chen, JIANG Yongjie, WANG Zhuoduo, ZHAO Limei, ZHANG Haitao Guangdong Journal of Animal and Veterinary Science    2025, 50 (3): 82-89.   DOI: 10.19978/j.cnki.xmsy.2025.03.12 Abstract （248）      PDF （1024KB）（721）       Knowledge map    Save As a Gram⁃positive probiotic capable of producing short⁃chain fatty acids such as butyric acid and acetic acid， Clostridium butyricum has shown significant potential in improving feed utilization，promoting digestion and absorption，supporting growth and development，improving intestinal health，and enhancing antioxidant capacity and immunity. This paper provides a comprehensive review of the application of Clostridium butyricum in livestock， poultry，and aquaculture，focusing on its effects on animal growth，immunity，antioxidant capacity，and intestinal health in order to provide a theoretical basis for practical production. Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (4): 54-62.   DOI: 10.19978/j.cnki.xmsy.2024.04.08 Abstract （411）      PDF （1343KB）（713）       Knowledge map    Save Reference | Related Articles | Metrics

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Analyzing the Future of the Cattle Breeding Industry in Guangdong Province from the Perspective of the National Beef Cattle Industry Development TONG Xiong, MIN Li, ZHANG Zhifei, TAN Sheng, MA Xinyan, LI Dagang Guangdong Journal of Animal and Veterinary Science    2025, 50 (4): 105-110.   DOI: 10.19978/j.cnki.xmsy.2025.04.16 Abstract （172）      PDF （2520KB）（694）       Knowledge map    Save This study delineates the evolving dynamics between cattle inventory and beef production in China， while highlighting the upward trajectory of domestic beef consumption and the increasing reliance on imports. From the perspective of germplasm resource introduction，it examines the influence of live cattle and frozen semen imports on the broader development of the beef industry. Integrating insights from the market circulation system，the paper further dissects the volatility patterns within the fresh beef consumption market. Focusing specifically on Guangdong Province，the paper evaluates the current state of the beef cattle sector through three analytical lenses：the imbalance in supply and demand，the degree of large⁃scale farming，and the distinctive characteristics of regional dairy cattle farming models. It identifies critical challenges facing the provincial cattle breeding industry，including a shortage of high⁃quality genetic stock，weak foundational infrastructure in breeding systems，misalignment between breeding objectives and the diversified demands of the market，and insufficient protection and utilization of indigenous cattle germplasm resources. Building upon the analysis of these structural bottlenecks，the paper proposes a systematic development pathway. This includes the establishment of a province⁃wide elite breeding system，targeted enhancement of genetic improvement technologies，the development of intelligent innovation platforms for germplasm advancement， and the identification of genetic markers associated with desirable traits. Together，these measures aim to provide a scientific foundation for the high⁃quality and sustainable development of Guangdong’s beef cattle breeding industry. Reference | Related Articles | Metrics

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Comparative analysis on Hyperpigmentation of the Visceral Peritoneum in Nine Chinese Yellow⁃feathered Broilers HE Jingyi, HE Yanhua, LIU Tianfei, LUO Wei, CHEN Peng, JI Jian, LUO Chenglong, SHU Dingming Guangdong Journal of Animal and Veterinary Science    2025, 50 (1): 1-7.   DOI: 10.19978/j.cnki.xmsy.2025.01.01 Abstract （297）      PDF （2242KB）（691）       Knowledge map    Save The study was aimed to investigate the characteristics of Hyperpigmentation of the Visceral Peritoneum（HVP）in nine yellow⁃feather broilers. In this study，we analyzed the relationship between HVP and body weight（BW），Shank circumference（SC），and sex in nine 21⁃day⁃old yellow⁃feathered broiler lines（n=6 223）. The results showed that there were significant differences in HVP traits among different strains in different population genetic backgrounds（ P<0.05）. Notably local chicken exhibited a higher proportion of peritoneal black level 3 compared to specialized breeding lines. Under the same population genetic background，eight strains showed highly significant differences（ P<0.01）in HVP，body weight，and Shank circumference，with lower BW and SC in the peritoneal black grade 3. Additionally，when males and females were analyzed separately，the HVP level was higher in the female chickens（ P<0.01）. The findings from our experiment suggested that selective breeding for lower HVP levels should prioritize local chicken breeds and hen groups，which provide a basis for future yellow⁃feathered broiler breeding and production. Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (5): 61-69.   DOI: 10.19978/j.cnki.xmsy.2024.05.11 Abstract （251）      PDF （2698KB）（682）       Knowledge map    Save Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (6): 41-49.   DOI: 10.19978/j.cnki.xmsy.2024.06.07 Abstract （341）      PDF （3346KB）（642）       Knowledge map    Save Reference | Related Articles | Metrics

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Risks and Strategies in Safety of Prepared Livestock and Poultry Meat Dishes HUANG Yuan, ZHANG Pian, CHEN Huiqian, YAO Yue, WU Jieli, CHEN Jinliang, WANG Xiaohu, WANG Gang Guangdong Journal of Animal and Veterinary Science    2025, 50 (1): 67-71.   DOI: 10.19978/j.cnki.xmsy.2025.01.11 Abstract （298）      PDF （1016KB）（599）       Knowledge map    Save In recent years，China‘s prepared dishes industry has developed unprecedentedly and has become a sunrise industry supported by the central and various levels of government. However，the safety and hygiene issues of prepared dishes have raised concerns among consumers. Prepared livestock and poultry meat dishes account for an important proportion in prepared dishes，and the solution to their safety and hygiene issues affects the public’s acceptance of prepared dishes products. This article analyzed the safety and hygiene risks of the whole supply chain of prepared animal and poultry meat dishes as following：veterinary drug residues，excessive heavy metals，pesticide contamination，and disease pathogens in the breeding process；the use of illegal additives and excessive additives in the processing process，refrigeration temperature issues in storage and transportation；packaging damage，and contaminated impurities. This paper offered the following solutions from the perspective of enterprises：actively build quality standards and standard systems； actively cooperate， participate and promote the construction of the certification system；establish traceable management system；applicate new technologies，including the new detection methods，physical preservation techniques for meat，and new refrigeration technologies. Reference | Related Articles | Metrics

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Effects of Fresh Fermented Rapeseed Meal on the Growth rate，Serum Biochemical Indexes，Hepatic Antioxidant Capacity，Intestinal Digestive Enzyme Activity and Intestinal Flora in Grass Carp WANG Yilin, WANG Yajun, CHEN Jianchou, ZHU Xuezhi, SHI Anning, WANG Yue, LIAO Jingxuan, LIU Liyan Guangdong Journal of Animal and Veterinary Science    2025, 50 (1): 33-42.   DOI: 10.19978/j.cnki.xmsy.2025.01.06 Abstract （469）      PDF （2490KB）（586）       Knowledge map    Save The experiment was to study the effects of different levels of moist fermented rapeseed meal fermented by Bacillus subtilis on the growth，serum physiology and biochemistry，intestinal digestibility and intestinal flora of grass carp（Ctenopharyngodon idella）. A total of 450 grass carp with an initial average weight of（51.60±0.56）g were randomly divided into 5 groups with 3 replicates and 30 fish per replicate. The amount of moist fermented rapeseed meal in each group was 0（control group），10%，20%，30% and 40%，respectively，and the amount of rapeseed meal was reduced accordingly. The experiment lasted for 8 weeks. The results showed that the condition factor of 20% and 40% moist fermented rapeseed meal groups was significantly higher than that of control group（ P<0.05）. The contents of total cholesterol and high density lipoprotein in 40% group were significantly higher than those in control group（ P<0.05）. Dietary supplementation of more than 20% of moist fermented rapeseed meal significantly increased intestinal α⁃amylase activity（ P<0.05），and dietary supplementation of more than 30% of moist fermented rapeseed meal significantly increased intestinal trypsin activity（ P<0.05）. With the increase of the replacement level of moist fermented rapeseeds，the numbers of Firmicutes，verrucobacteria and actinobacteria in intestinal tract increased， while the numbers of Proteobacteria and chloromyces decreased. Under the experimental conditions，moist fermented rapeseed meal had a certain growth⁃promoting effect，which could improve intestinal digestive enzyme activity and intestinal flora composition. The feed prepared with 20% moist fermented rapeseed meal is more beneficial to increase the fatness of grass carp，increase the lipid metabolism capacity of liver，reduce the oxidative damage of liver and improve the intestinal flora. The feed prepared with 30% and 40% moist fermented rapeseed meal formula has a good effect on improving intestinal digestive enzymes of grass carp. Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (4): 63-67.   DOI: 10.19978/j.cnki.xmsy.2024.04.09 Abstract （243）      PDF （963KB）（581）       Knowledge map    Save Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (6): 67-72.   DOI: 10.19978/j.cnki.xmsy.2024.06.11 Abstract （473）      PDF （1088KB）（561）       Knowledge map    Save Reference | Related Articles | Metrics

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Development and Application of a Dual RT⁃qPCR Assay for Detection of Classical and Novel Goose Reovirus YIN Zhenghao, WEI Wuque, LIANG Zhaoping, LI Yuze, XU Hang, LU Yongkun, MEI Kun, HUANG Shujian Guangdong Journal of Animal and Veterinary Science    2025, 50 (3): 96-104.   DOI: 10.19978/j.cnki.xmsy.2025.03.14 Abstract （235）      PDF （2627KB）（559）       Knowledge map    Save The Goose reovirus（GRV）comprises two distinct types：the classic（GRV）and the novel goose reovirus （NGRV）. These two types exhibit differences in their epidemiological characteristics and viral gene sequences. The lack of sensitive and specific assays for both types of viruses has resulted in difficulties in accurately diagnosing and timely intervening in cases. In order to distinguish GRV from NGRV，a dual RT⁃qPCR assay based on a dye ⁃ based method（SYBR Green I）was established. The results demonstrated that the method was capable of distinguishing GRV（79.5℃） and NGRV（86.5℃） based on their respective melting curves. Furthermore，no amplification was observed for any of the common waterfowl epidemics，the lowest detections were 6.466×101 copies/ μL GRV and 4.979 × 101 copies/μL NGRV. The results demonstrated that the dual RT⁃qPCR assay，based on a dye⁃ based method，could rapidly and accurately identify different types of GRVs in infected geese. The assay exhibited a high degree of precision，with coefficients of variation less than 0.55% for both intra⁃ and intergroups. This method has the potential to support early diagnosis，epidemiological monitoring and effective prevention and control of the disease. Reference | Related Articles | Metrics

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Study on the Effects of Compound Probiotics on Improving Laying Performance and Egg Quality of Laying Hens GOU Zhongyong, FAN Qiuli, DING Fayuan, CHENG Zhonggang, CHEN Limin, LIN Xiajing, WANG Yibing, ZHANG Sai, RUAN Dong, YE Jinling, MA Manting, JIANG Shouqun Guangdong Journal of Animal and Veterinary Science    2025, 50 (4): 1-7.   DOI: 10.19978/j.cnki.xmsy.2025.04.01 Abstract （243）      PDF （1050KB）（554）       Knowledge map    Save This study aimed to investigate the effects of dietary supplementation with different doses of compound probiotics on production performance，egg quality，reproduction��related traits and organ indices in old aged laying hens. A total of 288 Jingfen laying hens aged 68 weeks with normal egg production were selected and randomly divided into 4 groups based on similar laying rates. The basal diet was supplemented with 0，200，300，and 400 mg/kg of compound probiotics，respectively. The results showed that：dietary supplementation with compound probiotics exhibited certain trends in affecting the laying rate and daily egg mass （EM）（ P<0.10）. With the dietary supplementation level of probiotics increased，the laying rate demonstrated a significant linear increase（ P=0.047）， while daily EM showed a tendency toward linear increase（ P=0.092）. Meanwhile，the unqualified egg rate exhibited a tendency toward linear decrease（ P=0.078）. Eggs from the 300 mg/kg group had the highest eggshell strength， significantly exceeding the other 3 groups（ P<0.05）. With increasing dietary probiotic levels，Haugh unit displayed a significant quadratic effect characterized by an initial increase followed by a slight decrease（ P=0.005）. The number of dominant follicles also showed a trend of initial increase followed by decrease （ P=0.078）. Dietary probiotics significantly affected abdominal fat percentage（AF%）（ P=0.037），with the lowest value observed in the 300 mg/kg group. Based on the significance（ P values）and correlation coefficients（R2）of quadratic polynomial or broken-line models established for Haugh unit and AF% in response to probiotic dosage，and considering all experimental indicators comprehensively，the optimal dietary supplementation level of compound probiotics for aged laying hens was determined to be 300 mg/kg. Reference | Related Articles | Metrics

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Effects of Probiotics on Meat Quality of Pigs CUI Yiyan, ZHOU Ningqiang, MAI Xiaopeng, HUANG Zijun, TANG Ke, LUO Xuehui, MA Xianyong, YU Miao Guangdong Journal of Animal and Veterinary Science    2025, 50 (2): 51-58.   DOI: 10.19978/j.cnki.xmsy.2025.02.08 Abstract （216）      PDF （1063KB）（552）       Knowledge map    Save Meat quality is one of the determining factors for consumers' decision to purchase pork. More and more research is dedicated to producing high- quality and delicious pork to meet the needs of consumers. At present, Bacillus and lactic acid bacteria are probiotics commonly used to improve pork quality, which can improve meat color, reduce drip loss and shear force, increase the content of muscle nutrients and flavor substances, and enhance meaty traits and nutritional value in pork. Probiotics regulate the expression of genes related to nutrient metabolism, improving intestinal metabolism and deposition of fat and protein in meat. It can also affect the expression of genes related to fiber type, growth and development of muscle, reduce muscle lipid peroxidation by maintaining cell membrane integrity, lower water loss rate, and thus improve meat quality. This article reviews commonly used probiotics and their applications in meat quality of pigs, in order to provide scientific basis for the application of probiotics in improving meat quality. Reference | Related Articles | Metrics

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Pathogen Detection and Analysis of Sow Abortions in a Pig Farm in Guangdong NIE Jingjing, CHEN Jialu, CHEN Jiayue, XU Shaodong, QU Yunzhi, LIU Zhicheng, ZHANG Jianfeng, ZHANG Chunhong Guangdong Journal of Animal and Veterinary Science    2025, 50 (1): 110-117.   DOI: 10.19978/j.cnki.xmsy.2025.01.18 Abstract （220）      PDF （5871KB）（542）       Knowledge map    Save In January 2024，some pregnant sows experienced clinical cases such as miscarriage and stillbirth in a large⁃scale pig farm in Guangdong Province. To diagnose the cause of the outbreak，blood samples from aborting sows and organs samples from stillborn fetuses were collected. Common pathogens causing miscarriage in sows，such as Porcine Circovirus 2/3（PCV2/3），Porcine Reproductive and Respiratory Syndrome Virus 2（PRRSV2），Porcine Pseudorabies Virus（PRV），Toxoplasma gondii，etc。，have been detected using fluorescence quantitative PCR methods. Then，the genotypes and subtypes of the detected pathogens were to identify via nucleic acid sequencing analysis. In addition，the bacterial pathogens were isolated and identified，and used for screening sensitive drugs to guide clinical medication. The results showed that PCV2d and Aeromonas rivipollensis are the main pathogens causing the disease of pregnant sows in this pig farm，and the latter is sensitive to penicillin，amoxicillin，cefradine，and florfenicol，indicating that these candidate drugs can be used for clinical treatment. Reference | Related Articles | Metrics

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Effects of Compound Nutritional Health Sand on the Slaughter Performance，Biochemical Indicators，and Intestinal Health of Squab Pigeon#br# LU Haopeng, LI Ziying, ZENG Fanming, ZHENG Shiqi, ZHANG Wei, ZHANG Yanlin, HE Yanle, SONG Mengping, GOU Zhongyong, WANG Jun, LIANG Yayan, HUANG Yanhua, PENG Jie, YAN Kai Guangdong Journal of Animal and Veterinary Science    2025, 50 (5): 24-32.   DOI: 10.19978/j.cnki.xmsy.2025.05.04 Abstract （147）      PDF （1409KB）（541）       Knowledge map    Save This study aimed to evaluate the effects of compound nutritional health sand on slaughter performance，meat quality，carbohydrate and lipid metabolism，oxidative stress，intestinal morphology，and intestinal enzyme activity in pigeons. For this experiment，96 pairs of Mimas pigeons with similar age，weight，and reproductive performance were selected pigeons. They were randomly divided into two treatment groups. Each group contained 8 replicates，each replicate consisting of 6 pairs of pigeons，and each pair of pigeons rearing 4 squabs. The control group was fed with basic health sand，while the experimental group was fed with compound nutritional health sand. The experimental period was 45 days（17 days of hatching，21 days of lactation，and 7 days of rest）. The results showed the following：Compared with the control group，the crypt depth of the jejunum in the squabs of the experimental group exhibited significantly reduced，and the villus⁃to⁃crypt ratio was significantly increased（ P<0.05），while there were no significant changes in the villus height，muscle layer thickness，and villus width of the jejunum（ P>0.05）. Compared with the control group，the content of plasma albumin（Alb，Albumin）in the squabs of the experimental group was significantly increased（ P<0.05），and there were no significant changes in the content of plasma glucose （Glucose，GLU），urea nitrogen（Urea nitrogen，BUN），total protein（Total Protein，TP），uric acid（Uric acid， UA），total cholesterol（Total Cholesterol，T⁃CHO），and triglycerides（Total Triglyceride，TG）（ P>0.05）. Compared with the control group，the activity of amylase（Amylase，AMY）and total superoxide dismutase（Total Super Oxide Dismutase，T⁃SOD）in the jejunum of the squabs of the experimental group was significantly increased（ P<0.01）， while there were no significant changes in the activity of total antioxidant capacity（Total anti⁃oxidant status，T⁃AOC）， chymotrypsin（Chymotrypsin，Chy），maltase（Maltase，MDH），catalase（Catalase，CAT），and the content of malondialdehyde （Malonaldehyde， MDA） and hydrogen peroxide （Hydrogen peroxide， H2O2）（ P<0.05）. In conclusion，compound nutritional health sand promotes the development of the intestinal tract in pigeons，enhances intestinal health，and holds potential application value in production. Reference | Related Articles | Metrics

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Effects of Inulin on Growth， Fecal Score and Nutrient Apparent Digestibility in British Shorthair Cats XIAO Zaili, ZHAO Shiyuan, TANG Chao, LIU Ruili, LI Huahao Guangdong Journal of Animal and Veterinary Science    2025, 50 (3): 46-52.   DOI: 10.19978/j.cnki.xmsy.2025.03.08 Abstract （259）      PDF （978KB）（536）       Knowledge map    Save This experiment was conducted to investigate the effects of dietary 1% inulin supplementation on growth，fecal score and nutrient apparent digestibility of British shorthair cats. Sixteen healthy adult British shorthair cats aged 1⁃2 years were randomly divided into 2 groups with 8 cat per group. Cats in the control group were fed a basal diet，and those in the experimental group were fed the basal diet supplemented with 1% inulin. The pre⁃feeding period was 7 days and the formal test period was 28 days. The results showed as follows：Compared with the control group，1） Dietary supplementation of 1% inulin had no significant effect on body weight and feed intake of cats（ P>0.05）. 2） Dietary supplementation of 1% inulin significantly increased fecal water content and fecal score（ P<0.05）. 3）Dietary supplementation of 1% inulin significantly increased the apparent digestibility of crude protein in cat diet（ P<0.05）， and tended to increase the apparent digestibility of dry matter，organic matter，calcium and total phosphorus. In conclusion，dietary supplementation of 1% inulin has no significant effect on body weight and feed intake of cats，but can significantly improve fecal water content，fecal score and crude protein apparent digestibility. Reference | Related Articles | Metrics

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Comprehensive Prevention and Control Strategies for Porcine Epidemic Diarrhea in Large⁃Scale Swine Farms GENG Rui, XU Zhichao, KANG Qixiang, HU Guangli, SHEN Hanqin, CAO Yongchang Guangdong Journal of Animal and Veterinary Science    2025, 50 (5): 83-90.   DOI: 10.19978/j.cnki.xmsy.2025.05.13 Abstract （146）      PDF （1075KB）（529）       Knowledge map    Save Porcine epidemic diarrhea（PED），caused by the porcine epidemic diarrhea virus（PEDV），is a highly contagious and lethal infectious disease in pigs. The virus primarily targets the intestinal epithelium，leading to acute diarrhea and dehydration. Since the emergence of highly pathogenic PEDV variants in China in late 2010，PEDV has spread globally，causing significant economic losses on the global swine industry. This review systematically summarizes the current epidemiological trends，genetic variations and hazards of PEDV. Focusing on the three fundamental components of infection source，transmission route，and susceptible animal of infectious diseases，this paper highlights the challenges in current PED prevention and control，and proposes a comprehensive PED prevention and control strategy emphasizing enhanced biosecurity measures and scientifically immunization programs. Reference | Related Articles | Metrics

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Research Progress on the Application of Chinese Herbal Medicine in Pork Quality CUI Yiyan, ZHOU Ningqiang, HUANG Zijun, WU Jieli, LUO Xuehui, MA Xianyong, YU Miao Guangdong Journal of Animal and Veterinary Science    2025, 50 (1): 59-66.   DOI: 10.19978/j.cnki.xmsy.2025.01.10 Abstract （221）      PDF （1077KB）（517）       Knowledge map    Save Chinese herbal medicine contains various bio⁃active compounds，such as polyphenols，alkaloids， polysaccharides，thanks to which Chinese herbal medicine has many pharmacological effects for example antioxidant， anti⁃inflammatory，and antibacterial. Chinese herbal medicine not only promotes animal growth and health，but also improves meat quality and flavor，which is of great significance to the feed industry and human health. This article reviews the characteristics of Chinese herbal medicine and its application in pork quality，in order to provide reference for further research on the effect of Chinese herbal medicine on meat quality. Reference | Related Articles | Metrics

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Guangdong Journal of Animal and Veterinary Science    2024, 49 (4): 9-16.   DOI: 10.19978/j.cnki.xmsy.2024.04.02 Abstract （235）      PDF （1002KB）（486）       Knowledge map    Save Reference | Related Articles | Metrics