纤维水平对初产母兔繁殖性能及胚胎发育的影响

发布时间：2018-05-27 07:29

本文选题：纤维 + 初产母兔　；参考：《中国畜牧杂志》2017年01期

【摘要】：本试验旨在研究不同纤维水平对初产母兔繁殖性能及胚胎发育的影响。选取新西兰母兔240只,分为4个试验组,试验期分为2个阶段,第1阶段为母兔165日龄至第1胎分娩,试验1、2、3、4组分别饲喂12%、14%、16%、18%不同纤维水平的日粮,第2阶段为母兔分娩至仔兔断奶,测定其繁殖性能和胚胎发育。结果表明:试验2、3组发情率、配怀率显著高于4组(P0.05);试验4个组之间的产仔数差异不显著(P0.05);试验4组产活仔数显著低于1组(P0.05);试验2、3组的初生窝重、初生个体重显著高于1、2组(P0.05),同时试验1组显著高于4组(P0.05);试验2、3组21 d个体重显著高于1、4组(P0.05),试验4组35 d个体重显著低于其他各试验组(P0.05);试验3组的胚胎长度和胚胎重量显著大于其他各试验组(P0.05)。综上所述,初产母兔饲喂16%纤维水平日粮其繁殖性能、胚胎发育以及仔兔生产性能表现最佳。本试验条件下,初产母兔最适纤维水平为16%。
[Abstract]:The aim of this study was to study the effects of different fiber levels on the reproductive performance and embryo development of newborn rabbits. 240 New Zealand female rabbits were selected and divided into 4 experimental groups. The trial period was divided into two stages. The first stage was from 165 days old to the first trimester. In the second stage, the reproductive performance and embryo development were measured. The results showed that the estrus rate of group 2 was significantly higher than that of group 4 (P 0.05), the difference of litter size between four groups was not significant (P 0.05), the number of live litter in group 4 was significantly lower than that in group 1 (P 0.05), and the litter weight of group 2 was lower than that of group 2. The birth weight of group 1 was significantly higher than that of group 1 and group 1 was significantly higher than that of group 4, and that of group 2 and group 3 was significantly higher than that of group 1 and group 1, respectively, and the body weight of group 4 was significantly lower than that of other groups at 35 days, and the embryo length of group 3 was significantly higher than that of group 3 And embryo weight was significantly higher than that of other test groups (P 0.05). To sum up, the reproductive performance, embryo development and production performance of newborn rabbits were the best when fed 16% fiber level diet. Under the experimental conditions, the optimum fiber level of the first born female rabbit was 16%.
【作者单位】：四川省畜牧科学研究院动物遗传育种四川省重点实验室;
【基金】：四川省科研院所基本科研业务费专项资金(SASA2015A10) 公益性行业(农业)科研专项(201303143) 国家兔产业技术体系(CARS-44-B-4) 四川省“十二五”畜禽育种攻关项目(2011NZ0099-4) 四川省科技支撑计划家兔现代产业链关键技术集成研究与产业化示范(2016NZ 0002)
【分类号】：S829.1

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