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当前位置: 首页 > 文章 > 饲粮粗蛋白质水平对崂山奶山羊生长发育及血清生化指标的影响 动物营养学报 2015,27 (2) 448-458
Position: Home > Articles > Effects of Dietary Crude Protein Level on Growth,Development and Serum Biochemical Indicators of Laoshan Dairy Goats Chinese Journal of Animal Nutrition 2015,27 (2) 448-458

饲粮粗蛋白质水平对崂山奶山羊生长发育及血清生化指标的影响

作  者：
于子洋;袁翠林;宋晓雯;程明;李斌;林英庭
单  位：
山东省饲料质量检验所;青岛市畜牧兽医研究所;青岛农业大学动物科技学院
关键词：
崂山奶山羊;粗蛋白质水平;生长发育;血清生化指标
摘  要：
本试验旨在研究饲粮粗蛋白质(CP)水平对育成期崂山奶山羊生长发育及血清生化指标的影响。选用147日龄体重为(14.57±0.32)kg的崂山奶山羊断奶母羊30只,采用单因素试验设计,随机分成3组,每组10个重复,每重复1只羊。各组饲喂CP水平分别为10.74%、13.22%和15.74%的3种饲粮。预试期14 d,正试期162 d。结果表明,增加饲粮CP水平:提高了崂山奶山羊平均日增重,加快了体尺增长;显著或极显著增加了崂山奶山羊食入氮量、尿氮排出量(P<0.05或P<0.01),对粪氮排出量无显著影响(P>0.05);显著增加了血清总蛋白、葡萄糖含量(P<0.05);对血清总胆固醇含量,谷丙转氨酶和谷草转氨酶活性无显著影响(P>0.05)。综合得出,根据食入氮量(x)与平均日增重(y)之间的关系y=-0.258 1x2+15.341 x-101.88,育成期崂山奶山羊获得最佳生长性能的食入氮量为29.72 g/d。
译  名：
Effects of Dietary Crude Protein Level on Growth,Development and Serum Biochemical Indicators of Laoshan Dairy Goats
作  者：
YU Ziyang;YUAN Cuilin;SONG Xiaowen;CHENG Ming;LI Bin;LIN Yingting;College of Animal Science and Technology,Qingdao Agricultural University;Institute of Husbandry and Veterinary of Qingdao;Shandong Feed Quality Inspection;
关键词：
Laoshan dairy goat;;crude protein level;;growth and development;;serum biochemical indicators
摘  要：
This experiment was conducted to determine the effects of dietary crude protein(CP) level on growth,development and serum biochemical indicators of Laoshan dairy goats.Thirty 147-day-old weaned Laoshan dairy goats female lambs with an average body weight of(14.57 ±0.32) kg were used in single-factor randomized design and divided into 3 groups with 10 replicates per group and 1 lamb per replicate.Goats in the three groups were fed diets with different CP levels(10.74%,13.22%,and 15.74%,respectively).The pretest lasted for 14 days,and the test lasted for 162 days.The results showed that with the increase of dietary CP level: the ADG of Laoshan dairy goats was increased,and the growth of body size was speeded up; nitrogen intake and urinary nitrogen excretion were significantly increased(P<0.05 or P<0.01),while no significant effect was found on fecal nitrogen excretion(P >0.05); the contents of serum total protein and glucose were significantly increased(P<0.05),but total cholesterol content,and alanine aminotransferase and aspartate aminotransferase activities in serum were not significantly affected(P>0.05).In conclusion,according to the relationship between nitrogen intake(x) and average daily gain(y)(y = 0.258 1x2+15.341x-101.88),the nitrogen intake of the best growth performance obtained in Laoshan dairy goats is 29.72g/d.

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