China Animal Husbandry and Veterinary Medicine ›› 2021, Vol. 48 ›› Issue (1): 172-177.doi: 10.16431/j.cnki.1671-7236.2021.01.019

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Effect of Exogenous Inosine Monophosphate Acid on Egg Performance, Egg Quality and Hatching Performance of Breeding Chickens

NIU Zikang1, WU Le1, ZHANG Xinrui1, YE Chengzhi1, HUAN Hailin1, ZHANG Feng2, WEI Mingxing2, YAN Junshu1   

  1. 1. Institute of Animal Husbandry, Jiangsu Academy of Agricultural Science, Nanjing 210014, China;
    2. Xuzhou Decheng Feed Co., Ltd., Xuzhou 221625, China
  • Received:2020-05-22 Online:2021-01-20 Published:2021-01-15

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

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