外源肌苷酸对种鸡产蛋性能、蛋品质及种蛋孵化性能的影响

doi:10.16431/j.cnki.1671-7236.2021.01.019

摘要/Abstract

摘要： 本试验通过在种鸡的基础饲粮中加入肌苷酸（IMP）来研究其对种鸡产蛋性能、蛋品质和种蛋孵化性能的影响。选择遗传背景相同、体重相近，产蛋率达到5%的20周龄健康AA种鸡864羽，随机分为2组（对照组饲喂基础饲粮；试验组饲喂基础饲粮＋0.5%肌苷酸），每组6个重复，每个重复72羽，试验期30 d。测定试验期间所有种蛋的平均蛋重、产蛋率和合格蛋率；每组随机选取部分种蛋进行蛋品质测定；于孵化开始第17天，通过照蛋处理统计种蛋受精率，第21天出雏时，计算受精蛋孵化率、入孵蛋孵化率和健雏率。试验结果表明：与对照组相比，试验组种鸡的平均蛋重、产蛋率和合格蛋率均有升高的趋势，但差异不显著（P>0.05）；蛋形指数显著升高（P<0.05），蛋壳强度、蛋壳厚度和蛋黄颜色显著降低（P<0.05）；受精率、受精蛋孵化率和入孵蛋孵化率显著升高（P<0.05），健雏率和雏鸡体重有升高的趋势，但差异不显著（P>0.05）。综上，0.5%外源肌苷酸对种鸡的产蛋性能和种蛋孵化性能均有促进作用。

关键词: 外源肌苷酸; 产蛋性能; 蛋品质; 种蛋孵化性能

Abstract: The aim of this experiment was to study the effect of inosine monophosphate acid (IMP) on egg performance,egg quality and hatching performance in breeding chickens.864 healthy AA breeds at 20 weeks old with the same genetic background and similar body weight,and with an egg laying rate of 5% were choosed and randomly divided into 2 groups (control and test groups,fed with basic diet and basic diet＋0.5% IMP,respectively.) with 6 repetitions and 72 replicates each.The experiment lasted 30 days.The average egg weight,egg laying rate and qualified egg rate of all kinds of eggs were measured during the test period,and some eggs were randomly selected for egg quality determination in each group.On the 17th day of entering the hatchery,the egg fertilization rate was counted by egg candling,and the hatching rate,brooding rate and healthy brooding rate were calculated on the 21st day.The results showed that:Compared with the control group,there was a tendency to promote average egg weight,laying rate and qualified egg rate in the test group,but the difference was not significant (P>0.05).The egg shape index of the egg quality in the test group was significantly increased (P<0.05),and the eggshell strength,egg shell thickness and egg yolk color of the egg quality were significantly decreased (P<0.05).The fertilization rate,hatching rate of fertilized eggs and hatching rate of hatching eggs in the experimental group were significantly increased (P<0.05).The healthy brooding rate and the weight of the chicks were increased,but the difference was not significant (P>0.05).In conclusion,0.5% exogenous IMP could promote egg laying performance and egg hatching performance of breeding chickens.

Key words: exogenous inosine monophosphate acid; egg laying performance; egg quality; egg hatching performance

中图分类号:

S816.7

牛自康, 吴乐, 张鑫蕊, 叶成智, 宦海琳, 张峰, 魏明星, 闫俊书. 外源肌苷酸对种鸡产蛋性能、蛋品质及种蛋孵化性能的影响[J]. 中国畜牧兽医, 2021, 48(1): 172-177.

NIU Zikang, WU Le, ZHANG Xinrui, YE Chengzhi, HUAN Hailin, ZHANG Feng, WEI Mingxing, YAN Junshu. Effect of Exogenous Inosine Monophosphate Acid on Egg Performance, Egg Quality and Hatching Performance of Breeding Chickens[J]. China Animal Husbandry and Veterinary Medicine, 2021, 48(1): 172-177.

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