动物营养学报Issue(11)：3341-3348,8.DOI:10.3969/j.issn.1006-267x.2014.11.021
饲粮锌水平对育成期水貂生长性能及血清生化指标的影响
Effects of Dietary Zinc Level on Growth Performance and Serum Biochemical Indices of Growing Minks
摘要
Abstract
This experiment was conducted to study the effects of dietary zinc level on growth performance and serum biochemical indices of growing minks. Seventy five 60-day-old healthy male minks were randomly divid-ed into 5 groups with 15 replicates per group and 1 mink per replicate. Minks in the 5 groups were fed the ex-perimental diets supplemented with 0 ( group Ⅰ) , 50 ( group Ⅱ) , 100 ( group Ⅲ) , 300 ( group Ⅳ) and 600 mg/kg ( groupⅤ) zinc, respectively. There was a 7-day adaptation period and a 60-day experimental pe-riod. The results showed as follows:1) there was no significant difference in body weight among all groups at 60, 75, 90, 105 and 120 days of age ( P>0.05);the average daily gain in groupsⅢ,ⅣandⅤwas signifi-cantly higher than that in groups Ⅰ and Ⅱ during 76 to 90 days of age ( P<0.05) , the average daily gain in group Ⅲ was significantly higher than that in groupsⅠ,Ⅱ andⅤ during 106 to 120 days of age ( P<0.05) . 2) The serum albumin content in group Ⅳ was significantly higher than that in groups Ⅰ and Ⅱ ( P<0.05) , the serum total protein and globulin contents in group Ⅳ were significantly higher than those in groups Ⅰ, Ⅱand Ⅴ (P<0.05), the serum immunoglobulin A content in group Ⅳ was significantly higher than that in groups Ⅰ, Ⅱ and Ⅲ (P<0.05), the serum immunoglobulin G content in group Ⅳ was significantly higher than that in group Ⅴ (P<0.05), there was no significant difference in serum immunoglobulin M content a-mong all groups ( P>0.05) . 3) The serum urea nitrogen content in groups Ⅰ and Ⅱ was significantly higher than that in groups Ⅲ, Ⅳ and Ⅴ (P<0.05), the serum aspartate amino transferase and alanine aminotrans-ferase activities in groups Ⅲ and Ⅳ were significantly higher than those in groups Ⅰ and Ⅴ (P<0.05). 4) The serum alkaline phosphatase activity in groupsⅢandⅣwas significantly higher than that in groupsⅠandⅤ ( P<0.05) , there was no significant difference in serum lactic acid dehydrogenase activity among all groups (P>0.05). 5) The serum zinc content in group Ⅴ was significantly higher than that in other groups (P<0.05) , the serum phosphorus content in group Ⅴ was significantly lower than that in groups Ⅰ and Ⅱ ( P<0.05), there was no significant difference in serum calcium content among all groups (P>0.05). In conclu-sion, dietary supplemented with 100 mg/kg zinc can improve the growth performance of growing minks. Diet-ary supplemented with 300 mg/kg zinc can get the highist protein metabolism related indices contents and zinc related enzyme activities, and it can be propitious to improve the immunity of minks.关键词
锌/生长性能/育成期/水貂/血清生化指标Key words
zinc/growth performance/growing/minks/serum biochemical indices分类
农业科技引用本文复制引用
周宁,张海华,吕智超,张婷,黄健,孙皓然,李光玉,严昌国..饲粮锌水平对育成期水貂生长性能及血清生化指标的影响[J].动物营养学报,2014,(11):3341-3348,8.基金项目
公益性行业（农业）科研专项（200903014）；吉林省特种经济动物营养与生理研究创新团队 （）
