动物营养学报2025，Vol.37Issue(2)：1141-1151,11.DOI:10.12418/CJAN2025.099
妊娠中后期饲粮添加乳酸钙对母羊生产性能、血清生化指标及其所产羔羊生长发育的影响
Effects of Diet Supplemented with Calcium Lactate during Middle and Late Pregnancy Stages on Performance,Serum Biochemical Indicators of Ewes and Their Offspring Lambs'Growth and Development
摘要
Abstract
The aim of this experiment was to investigate the effects of adding calcium lactate to the diet during middle and late pregnancy stages of on the performance,serum biochemical indicators of ewes,and the growth and development of their offspring lambs.Twenty-four healthy Hu sheep at 60 days of pregnancy with 3 lambs and similar body weight were selected and randomly divided into 2 groups,with 4 replicates in each group and 3 ewes in each replicate.The trial began on the 60th day of pregnancy and continued until the 60th day postpar-tum.On the 91st to 120th day of pregnancy,the control group was fed with a conventional basal diet without calcium lactate,while the test group was fed a diet supplemented with 0.44％calcium lactate;on the other time,the two groups were both fed the conventional diet.The results showed as follows:1)compared with the control group,adding calcium lactate to the diet extremely significantly increased the average daily gain of e-wes on days 91 to 150 of pregnancy(P＜0.01),extremely significantly reduced the average postpartum weight loss of ewes(P＜0.01),and significantly increased the dry matter intake of ewes on days 91 to 120 of preg-nancy and milk production on day 20 of postpartum(P＜0.05).2)Serum calcium ion content of ewes in the test group on the 120th day of pregnancy was significantly higher than that on the 90th day of pregnancy(P＜0.05),and significantly higher than that in the control group on the 120th day of pregnancy(P＜0.05);serum parathyroid hormone content of ewes in the test group on the 120th day of pregnancy was significantly lower than that on the 90th day of pregnancy(P＜0.05),and extremely significantly lower than that in the control group on the 120th day of pregnancy(P＜0.01);serum calcitonin content of ewes in the test group on the 120th day of pregnancy was significantly higher than that on the 90th day of pregnancy(P＜0.05),and ex-tremely significantly higher than that in the control group on the 120th day of pregnancy(P＜0.01).3)Serumβ-hydroxybutyrate content of ewes in the control group on the 120th day of pregnancy and the 20th day of postpartum were extremely significantly higher than that on day 90 of pregnancy(P＜0.01),and significantly higher than those in the test group at the same time(P＜0.05);serum urea nitrogen and glucose contents of e-wes in the test group on the 120th day of pregnancy were significantly higher than those in the control group(P＜0.05).Body weight,average daily gain,body size indicators,and serum biochemical indicators of lambs in the test group were all better than those in the control group,but the differences were not significant(P＞0.05).In summary,adding 0.44％calcium lactate to the diet during the middle and late pregnancy stages can increase the average daily gain,dry matter intake and milk production of ewes,reduce their average postpar-tum weight loss,increase their serum calcium ion,calcitonin,urea nitrogen and glucose contents,and reduce their serum parathyroid hormone and β-hydroxybutyric acid contents.Thus,it has a positive impact on the postpartum recovery of ewes and the growth and development of their offspring lambs.[Chinese Journal of Animal Nutrition,2025,37(2):1141-1151]关键词
乳酸钙/湖羊/母羊/羔羊/妊娠中后期/生产性能/血清生化指标Key words
calcium lactate/Hu sheep/ewes/lambs/middle and late pregnancy stages/performance/serum biochemical indicators分类
农业科技引用本文复制引用
赵林波,杨振祥,王文奇,刘宇航,杨会国,张云生,刘艳丰..妊娠中后期饲粮添加乳酸钙对母羊生产性能、血清生化指标及其所产羔羊生长发育的影响[J].动物营养学报,2025,37(2):1141-1151,11.基金项目
国家重点研发项目计划项目资助(2021YFD1600701) （2021YFD1600701）
财政部和农业农村部-国家现代农业产业技术体系资助(CARS-38) （CARS-38）
自治区三农骨干人才培养项目(2023SNGGGCC017) （2023SNGGGCC017）
