Abstract: 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.

Key words: Squab, Compound nutritional health sand, Slaughter performance, Carbohydrate and lipid metabolism, Intestinal healthy

摘要： 该研究旨在评估复合营养保健砂对乳鸽的屠宰性能、肉品质、糖脂代谢、氧化应激、 肠道形态和肠酶活的影响，以明确其在生产上应用的可行性。本试验选用96对年龄、体重和 繁殖性能相近的米玛斯乳鸽，随机分成2个处理组，每个处理组8个重复，每个重复6对种鸽， 每对种鸽哺育4只乳鸽，其中对照组饲喂基础保健砂，试验组饲喂复合营养保健砂，试验期为 45 d（孵化期17 d、哺乳期21 d以及休产期7 d）。试验结果显示，相较于对照组，试验组的乳鸽 空肠隐窝深度显著降低，且绒隐比显著升高（P<0.05），空肠的绒毛高度、肌层厚度和绒毛宽度 无显著变化（P>0.05）。相较于对照组，试验组的乳鸽血浆白蛋白含量显著升高（P<0.05），血浆 葡萄糖、尿素氮、总蛋白、尿酸、总胆固醇和甘油三酯含量均无显著变化（P>0.05）。相较于对照 组，试验组的乳鸽空肠的淀粉酶和总超氧化物歧化酶的活性极显著提高(P<0.01)，空肠的总抗 氧化活性、糜蛋白酶、二糖酶、过氧化氢酶的活性和丙二醛、过氧化氢的含量均无显著变化。综 上所述，复合营养保健砂能够促进乳鸽肠道发育，改善肠道健康，在生产上具有一定的应用价值。

关键词: 乳鸽, 复合营养保健砂, 屠宰性能, 糖脂代谢, 肠道健康