饲粮补充鲜桑叶对母兔繁殖性能、生殖激素和生化指标的影响  

Effects of Fresh Mulberry Leaves-Supplemented Diets on Reproductive Performance and Serum Biochemical Parameters of the Multiparity Female Rabbits

作　　者：王彬 郭志强[2] 邝良德[2] 杨锐[2] 李丛艳[2] 雷岷[2] 郑洁[2] 谢晓红[2] WANG Bin;GUO Zhiqiang;KUANG Liangde;YANG Rui;LI Congyan;LEI Min;ZHENG Jie;XIE Xiaohong(College of Animal Science and Technology,Southwest University,Chongqin 400716,China;Sichuan Institute of Animal Husbandry Science,Animal Breeding and Genetics key Laboratory of Sichuan Province,Sichuan Chengdu 610066,China)

机构地区：[1]西南大学动物科学技术学院,重庆400716 [2]四川省畜牧科学研究院,四川成都610066

出　　处：《中国畜牧杂志》2021年第12期170-174,共5页Chinese Journal of Animal Science

基　　金：四川省农业重点研发项目(2018NZ0069、2018NZ0137);国家兔产业技术体系(CARS-43-D-3)。

摘　　要：试验旨在研究饲粮补充鲜桑叶对经产母兔繁殖性能、生殖激素和血清生化指标的影响。选取体重在4.5 kg左右、第3胎新西兰母兔90只,随机分为3个处理,每个处理5个重复,每个重复6只。对照组饲喂中营养水平(消化能11.20 MJ/kg,粗蛋白质17.50%)饲粮,试验组分别饲喂中营养和高营养水平(消化能11.70 MJ/kg,粗蛋白质18.50%)饲粮并自由采食鲜桑叶,预试7 d后配种,配种方式为自然交配,试验期70 d。结果显示:与对照组相比,试验组母兔的产活仔数和断奶仔兔数均提高(P<0.05),其中高营养水平+鲜桑叶组最高;试验组血清瘦素水平较对照组增高(P<0.05),试验组间差异不显著,其中高营养水平+鲜桑叶组最高,雌二醇、卵泡生成素、促黄体素和孕酮水平差异不显著;血清胆固醇和甘油三酯较对照组均下降(P<0.05),谷丙转氨酶、谷草转氨酶和碱性磷酸酶差异不显著。综上可见,饲粮中添加鲜桑叶可提高母兔繁殖性能和血清瘦素水平,降低血脂含量,其中高营养水平组效果更显著。The purpose of this experiment is to study the effects of dietary supplement of fresh mulberry leaves on reproductive performance,reproductive hormones and serum biochemical indexes of the multiparity female rabbits.Ninety New Zealand female rabbits of the third birth weighing about 4.5 kg were randomly divided into 3 treatments with 5 replicates and 6 rabbits per replicate.The control group was fed with medium nutrition level diet(DE 11.20 MJ/kg,CP 17.50%),while the experimental groups was fed with medium nutrition level and high nutrition level diet(DE 11.70 MJ/kg,CP 18.50%)and freely fed with fresh mulberry leaves during the feeding process,respectively.After 7 days of pre-feeding,the mating method is natural mating,and the trial period was 70 days.The results showed that compared with the control group,the number of live and weaned rabbits in the experimental group was significantly increased(P<0.05),of which the high nutrition level+fresh mulberry leaf group was the highest.The level of serum leptin in the test group was significantly higher than that in the control group(P<0.05).There was no significant difference between the experimental groups(P>0.05),among which the group with high nutrition level+fresh mulberry leaves was the highest,the levels of estradiol,follicle-forming hormone,luteinizing hormone and progesterone were not significantly different(P>0.05).Serum cholesterol and triglyceride were also significantly lower than those of the control group(P<0.05),and the differences of glutamic pyruvic transaminase,glutamic oxaloacetic transaminase and alkaline phosphatase were not significant(P>0.05).In conclusion,adding fresh mulberry leaves to the diet can improve the reproductive performance and serum leptin level of female rabbits and reduce blood lipid content,especially in the high nutrition level group.

关 键 词：鲜桑叶 经产母兔 繁殖性能 生殖激素 

分 类 号：S829.1[农业科学—畜牧学]