Abstract: In response to the urgent need for refined management and scientific feeding strategies in the current laying duck industry，a validation study was conducted on the recently published“Nutrient Requirements of Laying Ducks”（GB/T 41189－ 2021）. Diets were formulated at 95%，100%，and 105% of the standard recommended nutrient levels to investigate the applicability of current standards through comprehensive evaluation of production performance and egg quality. A total of 216 healthy 29􀆼week􀆼 old Longyan Shanma ducks with similar production performance were randomly allocated into three groups，with six replicates per group and twelve ducks per replicate. Three experimental diets were administered for an 18􀆼week trial period.The results revealed that：（1）Regarding laying performance，no significant differences were observed in laying rate and feed􀆼to􀆼egg ratio among groups （P>0.05）. However，significant effects were detected on feed intake，average egg weight，and egg breakage rate. The lowest feed intake was recorded in the 100% group，while the highest average egg weight and lowest egg breakage rate were observed in the 105% group（P<0.05）.（2）In egg composition analysis，significant effects were found on albumen weight and eggshell weight（P< 0.05），with both parameters being higher in the 105% group，though no significant differences were detected in the proportion of egg components among groups（P>0.05）.（3）Regarding egg quality parameters，no significant effects were observed on albumen height， Haugh unit，eggshell strength，or eggshell thickness（P>0.05），while the egg shape index was significantly influenced，reaching its highest value in the 105% group （P<0.05）. In conclusion，under the experimental conditions，when evaluated against key production indicators including laying rate，feed-to-egg ratio，and egg quality，the current standard of“Nutrient Requirements of Laying Ducks”（GB/T 41189－ 2021）was demonstrated to meet production requirements. However，it is recommended that the nutrient level be adjusted to 95% when the egg breakage rate is incorporated as an additional evaluation criterion.

Key words: Laying duck, Egg production performance, Egg quality, Nutritional requirement

摘要： 鉴于当前蛋鸭养殖行业对精细化管理和科学喂养策略的迫切需求，该课题组对发 布的《蛋鸭营养需要量》（GB/T 41189－2021）开展了一项验证试验，以标准推荐营养素水平的 95%、100%和105%配制饲粮，通过对蛋鸭生产性能和蛋品质的测定，探究目前标准的适用 性。该研究选取29周龄生产性能相似的健康龙岩山麻鸭216只，随机分为3组，每组6个重 复，每个重复12只鸭。分别饲喂三种饲粮，试验周期18周。结果显示：在产蛋性能方面，各组 龙岩山麻鸭产蛋率、料蛋比无显著差异（P>0.05），但影响了龙岩山麻鸭采食量、平均蛋重以及 破蛋率，其中100%组的采食量最低，105%组的平均蛋重最高，105%组的破蛋率最低（P< 0.05）；在蛋组成方面，显著影响了蛋清重和蛋壳重（P<0.05），其中105%组蛋清重和蛋壳重均 较高，但各组的蛋组分比例均无显著差异（P>0.05）；在蛋品质方面，对蛋白高度、哈氏单位、蛋 壳强度、蛋壳厚度均无显著影响（P>0.05），但影响了蛋形指数，其中105%组的蛋形指数最高 （P<0.05）。综上，在本试验条件下，以生产中最关注的产蛋率、料蛋比和蛋品质为评价标准， 目前《蛋鸭营养需要量》（GB/T 41189－2021）的标准可满足蛋鸭生产需求，若增加破蛋率为评 价指标，可适当降低营养素水平到95%。

关键词: 蛋鸭, 产蛋性能, 蛋品质, 营养需要