蛋白质水平对妊娠后期崂山奶山羊生产性能、血清激素水平及生化指标的影响  

Effects of protein levels on production performance, serum hormone levels and biochemical indexes of Laoshan dairy goats in late pregnancy

作　　者：李素珍 郭艺璇 朱风华[1] 程明[2] 林英庭[1] LI Suzhen;GUO Yixuan;ZHU Fenghua;CHENG Ming;LIN Yingting(College of Animal Science and Technology,Qingdao Agricultural University,Qingdao 266109,China;Qingdao Animal Husbandry and Veterinary Institute,Qingdao 266109,China)

机构地区：[1]青岛农业大学动物科技学院,山东青岛266109 [2]青岛市畜牧兽医研究所,山东青岛266109

出　　处：《黑龙江畜牧兽医》2021年第1期62-66,共5页Heilongjiang Animal Science And veterinary Medicine

基　　金：山东省现代农业产业技术体系羊产业创新团队项目(SDAIT-10-04)。

摘　　要：为了给崂山奶山羊饲养标准的制订与科学饲养提供依据,试验选择妊娠90 d、体重为(49.33±0.08)kg的健康崂山奶山羊母羊36只,随机分为3组,每组设3个重复,每个重复4只羊,分别饲喂粗蛋白水平为12.25%、14.12%、16.29%的3种日粮,测定妊娠后期崂山奶山羊生产性能、血清激素水平及生化指标。结果表明:日粮蛋白质水平为14.12%(Ⅱ组)时,崂山奶山羊分娩后体重、羔羊初生重、羔羊出生第7天体重及成活率极显著高于其他2组(P<0.01);蛋白质水平对崂山奶山羊妊娠后期血清孕酮和雌二醇含量的影响不显著(P>0.05),仅Ⅱ组催乳素含量显著高于Ⅰ组(P<0.05);随着日粮蛋白质水平的升高,血清总蛋白、白蛋白、尿素氮含量均极显著增加(P<0.01)。说明妊娠后期崂山奶山羊日粮中蛋白质添加水平以14.12%为宜。In order to provide the basis for establishment of feeding standard and scientific rearing of Laoshan dairy goat, thirty-six healthy female Laoshan dairy goats with a body weight of(49.33±0.08) kg on the 90 th day of pregnancy were randomly divided into 3 groups, with 3 replicates for each treatment and 4 goats for each repeat. The treatments were fed 3 diets with 12.25%, 14.12% and 16.29% protein levels, respectively. The production performance, serum hormone levels and biochemical indexes of Laoshan dairy goat in the late pregnancy were determined. The results showed that when the diet of protein level of 14.12%(Ⅱ group), the weight of Laoshan dairy goats after delivery, the initial weight of lambs, and the weight and survival rate of lambs 7 d after birth were significantly higher than that of the other 2 groups(P<0.01). There was no significant effect of protein level on the content of serum progesterone and E2 of Laoshan dairy goats in late pregnancy(P>0.05), only the content of prolactin ofⅡgroups was significantly higher than that of Ⅰgroup(P<0.05). With the increase of diets protein levels, serum total protein, albumin and urea nitrogen content all increased significantly(P<0.01). The results indicated that the protein level of Laoshan dairy goats was 14.12% in the late gestation period.

关 键 词：妊娠后期 崂山奶山羊 蛋白质 消化率 初生重 成活率 

分 类 号：S826[农业科学—畜牧学] S852.5[农业科学—畜牧兽医]