饲料研究2025，Vol.48Issue(8)：7-13,7.DOI:10.13557/j.cnki.issn1002-2813.2025.08.002
妊娠期绒山羊饲粮中添加过瘤胃蛋氨酸对母羊血清生化指标和胎儿脂肪、毛囊组织发育的影响
Effects of supplementing rumen-passed methionine in diets of pregnant cashmere goats on serum biochemical indicators of ewe and fat and hair follicle tissue development of fetus
摘要
Abstract
The study aimed to investigate the effects of supplementing rumen-passed methionine(RP-Met)in the diets of pregnant Albash cashmere goats on the serum biochemical indicators of ewe and growth,fat and hair of fetus.A total of 40 ewes with sympathetic estrus were selected.Around day 50 of pregnancy,30 ewes carrying twins were chosen via ultrasound screening.On day 83 of pregnancy,the ewes were randomly divided into two groups,each with 15 replicates and 1 ewes per replicate.The control group was fed a basal diet,while the experimental group was fed a basal diet supplemented with 0.2%RP-Met.The pre-trial period lasted seven days,and the formal trial period lasted 50 days.The results showed that the insulin(INS)content at 110 days of pregnancy,glucose(GLU)content at 125 d of pregnancy,total cholesterol(TC)content and alkaline phosphatase(ALP)activity at 140 days of pregnancy in the experimental group were significantly higher than in the control group(P<0.05),while the GLU content at 140 days of pregnancy was significantly lower than in the control group(P<0.05).On day 135 of fetus age,the body height and body length of fetuses in the experimental group were significantly higher than in the control group(P<0.05),while the weights of the heart,liver,and kidneys were significantly lower than in the control group(P<0.05).On day 125 of fetus age,the mRNA expression of uncoupling protein 1(UCP1)in the scapular fat of fetuses in the experimental group was significantly higher than in the control group(P<0.05).The study shows that 0.2%RP-Met supplementation can improve some serum biochemical indexes of pregnant ewes,and is beneficial to fetal body and organ development,synthesis,decomposition and utilization of scapular fat,and promote fetal growth and development.关键词
阿尔巴斯绒山羊/过瘤胃蛋氨酸/血清生化指标/胎儿/脂肪组织/毛囊发育Key words
Albash cashmere goats/rumen-passed methionine/serum biochemical indicators/fetuses/fat tissue/hair follicle development分类
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赫晓娜,付乐,张春华,李胜利,萨初拉,张崇志,王博,孙海洲..妊娠期绒山羊饲粮中添加过瘤胃蛋氨酸对母羊血清生化指标和胎儿脂肪、毛囊组织发育的影响[J].饲料研究,2025,48(8):7-13,7.基金项目
内蒙古自治区科技重大专项项目(项目编号:2021ZD0012) （项目编号:2021ZD0012）
国家绒毛用羊产业技术体系(项目编号:CARS-39-11) （项目编号:CARS-39-11）
国家重点研发计划项目(项目编号:2022YFD1301102) （项目编号:2022YFD1301102）
