动物营养学报Issue(8)：2225-2231,7.DOI:10.3969/j.issn.1006-267x.2014.08.025
饲粮脂肪水平对哺乳期水貂生产性能及血液生化指标的影响
Effect of Dietary Fat Level on Performance and Blood Biochemical Parameters of Minks during Lactation Period
摘要
Abstract
This experiment was conducted to study the effects of dietary fat level on performance and blood bi-ochemical parameters of minks during lactation period. A total of 60 litters of healthy lactation minks and their kids were randomly allocated to 4 groups with 15 replicates per group and 1 litter per replicate. Minks in the 4 groups were fed 4 experimental diets that contained 14. 43%( groupⅠ),18. 80%( group Ⅱ),22. 77%(group Ⅲ)and 26.89%(group Ⅳ)fat,respectively,and the protein level(45%)of the 4 experimental di-ets was the same. The experiment lasted for 45 days. The results showed as follows:1)the average body weight of kids at 9,18,27 and 45 days of age in groupⅡwas the highest,and it was significantly higher than that in groupⅣat 9 days of age,in groupsⅠandⅣat 18 days of age( P<0.05),in other groups at 27 days of age and in groups Ⅰ and Ⅳ at 45 days of age( P<0.05). The average body weight of female minks in group Ⅳ was always the highest when kids were at 9,18,27 and 45 days of age,and it was significantly higher than that in other groups at 9 and 27 days of age( P<0.05),in groupsⅠandⅡat 18 days of age( P<0.05)and in group Ⅱ at 45 days of age( P<0.05). At different days of age,the survival rate of kids had no significant difference among all groups( P>0.05),but groups Ⅱ and Ⅲ had the highest survival rate at 45 days of age. 2)The contents of total protein,albumin,glucose and triglyceride in serum of female minks were not significantly affected by dietary fat level( P>0.05). With dietary fat level increasing,the serum urea nitro-gen content of female minks was decreased,and that in groupsⅡ,ⅢandⅣwas significantly higher than that in group Ⅰ( P<0.01),as well as that in groupⅣwas significantly higher than that in groupsⅡandⅢ( P<0.01),but no significant difference was found between groups Ⅱ and Ⅲ( P>0.05). The contents of choles-terol,high density lipoprotein and low density lipoprotein in serum of female minks had an increasing trend with dietary fat level increasing,and the contents of total cholesterol and high density lipoprotein in serum in groupsⅠandⅡwere significantly lower than those in groupsⅢandⅣ( P<0.05),while the serum low den-sity lipoprotein content in groupⅠwas significantly lower than that in groupsⅢandⅣ( P<0.05). In conclu-sion,the optimal fat level of minks during lactation period is 18.80% under the conditions of this experiment.关键词
水貂/哺乳期/脂肪水平/血液生化指标Key words
mink/lactation period/fat level/serum biochemical parameters分类
农业科技引用本文复制引用
张海华,张铁涛,周宁,孙伟丽,钟伟,常忠娟,赵靖波,李光玉..饲粮脂肪水平对哺乳期水貂生产性能及血液生化指标的影响[J].动物营养学报,2014,(8):2225-2231,7.基金项目
公益性行业（农业）科研专项（200903014）；中国农业科学院创新工程专项经费 （）
