摘要
选择12月龄努比亚母羊75只集中配种,配种后将母羊随机分为3组,分别补饲复合预混料+尿素、浓缩料和精料补充料,在配种后(0 d)、妊娠100 d、妊娠150 d进行激素和血液生化指标测定。结果表明,3组母羊所有血液指标在试验0 d时差异均不显著(P>0.05)。妊娠100 d时血清胰岛素(Ins)、血清三碘甲状腺原氨酸(T3)和血清甲状腺素(T4)浓度以精料补充料组最高,3组间存在显著或极显著差异(P<0.05或P<0.01);在妊娠150 d时,3组母羊血清Ins、T3和T4浓度均有下降趋势,但仍然为补饲精料补充料组最高,3组间仍然存在显著或极显著差异(P<0.05或P<0.01)。血浆血糖(GLU)、总蛋白(TP)、白蛋白(ALB)、碱性磷酸酶(ALP)、谷丙转氨酶(AST)和谷草转氨酶(ALT)浓度随妊娠的进行不断上升,均为补饲精料补充料组最高,且3组间存在差异显著性(P<0.05或P<0.01)。尿素氮(BUN)浓度在试验100 d时升高,试验150 d时略有下降,均为补饲尿素组最高,3组间存在差异显著性(P<0.05或P<0.01)。
75 Nubian ewes were selected and divided into 3 groups randomly.Besides basic grazing,three groups of ewes were treated compound-premix plus urea,concentrated feed and concentrate supplement respectively.Blood hormones and biochemical indexes were determined at the breeding day（0 d）,100 d of pregnancy and 150 d of pregnancy.The results showed as follows：the blood indexes no significant difference at 0 d（P0.05） in the three groups of ewes.The group of added concentrate supplement had highest insulin,T3 and T4 concentrations at 100 d pregnancy（P0.05 or P0.01）.Three groups of ewes serum insulin,T3 and T4 concentrations were declining trend at 150 d of pregnancy,however,concentrate supplement feeding group was still the highest one,the differences among the three groups were still existed（P0.05 or P0.01）.GLU,TP,ALB,ALP,AST,ALT concentrations were increased with pregnancy rising,the group of add concentrate supplement was still the highest one,and there were significant differences among the three groups（P0.05 or P0.01）.BUN concentration increased at the 100 d of experiment,there was slight decrease at 150 d;the added urea group was the highest one,and there were significant differences among the three groups（P0.05 or P0.01）.
出处
《中国畜牧兽医》
CAS
北大核心
2011年第2期21-24,共4页
China Animal Husbandry & Veterinary Medicine
基金
云南省科技攻关重大专项基金“云南肉羊肉牛产业化关键技术研究与集成示范”(2004NG04)
关键词
努比亚母羊
妊娠
补饲
激素
生化指标
Nubian ewes
pregnancy
supplementary feeding
hormones
biochemical indexes
