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当前位置: 首页 > 文章 > 断奶至80日龄日本大耳白兔日粮适宜粗蛋白水平研究 浙江大学学报(农业与生命科学版) 2008,34 (1) 89-92
Position: Home > Articles > Study on optimal dietary crude protein level in Japanese white rabbits from weaning to 80-day old. Journal of Zhejiang University (Agriculture and Life Sciences) 2008,34 (1) 89-92

断奶至80日龄日本大耳白兔日粮适宜粗蛋白水平研究

作  者：
吕建敏;宋见惠;徐剑钦;张利棕;刘建新
单  位：
浙江大学动物科学学院;浙江大学医学院实验动物中心;浙江中医药大学动物实验研究中心
关键词：
日本大耳白兔;日粮;粗蛋白水平;生长性能;生化指标
摘  要：
选用60只40日龄断奶日本大耳白兔,随机分为5组,分别饲以粗蛋白水平为12%,14%,16%,18%和20%的等代谢能、等粗纤维日粮,通过对各组动物进行生长试验和血清生化指标测定,确定动物在断奶至80日龄期间的日粮适宜粗蛋白水平.试验结果表明,生长兔的日增重和试验末重以16%粗蛋白含量组最高,12%组最低,两者差异显著(P<0.05).各组动物血清总蛋白、白蛋白、尿素氮含量随着日粮粗蛋白水平的提高而升高,各组间尿素氮含量差异显著(P<0.05,P<0.01),但以粗蛋白水平为16%时为宜.日粮粗蛋白水平对血清球蛋白含量影响不显著.碱性磷酸酶的活力以16%粗蛋白组最高,但各组间差异不显著(P>0.05).综上所述,生长期日本大耳白兔的日粮适宜粗蛋白水平为16%.
译  名：
Study on optimal dietary crude protein level in Japanese white rabbits from weaning to 80-day old.
作  者：
L Jian-min1,2,SONG Jian-hui3,XU Jian-qin2,ZHANG Li-zong2,LIU Jian-xin1(1.College of Animal Science,Zhejiang University,Hangzhou 310029,China;2.Laboratory Animal Research Center,Zhejiang Chinese Medicine University,Hangzhou 310053,China;3.Laboratory Animal Center,School of Medicine,Zhejiang University,Hangzhou 310058,China)
关键词：
Japanese white rabbit;diet;crude protein level;growth performance;biochemical index
摘  要：
A six-week feeding trial was carried out to assess the optimal dietary crude protein level in Japanese white rabbits from weaning to 80-day old.Sixty weanling(40 d old) Japanese white rabbits were divided into 5 groups(Ⅰ,Ⅱ,Ⅲ,Ⅳ and Ⅴ) according to dietary crude protein levels(12%,14%,16%,18% and 20%,respectively).Digestible energy and crude fibre contents of the diets were equal except the crude protein content.The growth performance and feed intake were measured through the experiment.When the trial was finished,the biochemical indices were determined.Results show that crude protein levels had significant effect on daily gain and body weight,with the highest daily gain and body weight at the 16% crude protein level.The activity of alkaline phosphatase(AKP) was the highest in group Ⅲ,but no significant difference was found.The blood serum total protein and albumin in Ⅱ-Ⅴ groups were higher than those in group Ⅰ.The contents of urea-N were increased with increasing dietary crude protein level,but it was suitable in the third group.In conclusion,the optimal dietary crude protein level of Japanese white rabbits is 16% during growing period.

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