动物营养学报2017，Vol.29Issue(12)：4365-4371,7.DOI:10.3969/j.issn.1006-267x.2017.12.017
饲粮中铜添加量对断奶至2月龄长毛兔生产性能和血清指标的影响
Effects of Dietary Copper Addition on Performance and Serum Indices of Weaning to 2-Month-Old Long Hairy Rabbits
摘要
Abstract
This experiment was conducted to study the effects of dietary copper addition on performance, ser-um biochemical indices and serum enzymatic activities of weaning to 2-month-old long hairy rabbits.One hun-dred and eighty weaning Mengyin fine wool type long hairy rabbits were randomly assigned to 6 groups with 30 rabbits in each group, and the rabbits were feed separately.Rabbits in 6 groups were fed experimental diets which supplemented with 0, 10, 20, 40, 80 and 160 mg/kg copper (the form was CuSO4· 5H2O) based on a basal diet, and the measured values of the copper in them were 3.25, 13.13, 23.40, 43.56, 83.58 and 163.87 mg/kg, respectively.The trail lasted for 7 days for adaption, and 23 days for test.The results showed as follows:dietary copper addition had extremely significant effects on average daily gain ( ADG) and feed/gain ( F/G) ( P<0.01) , and the highest value of ADG and lowest value of F/G were found when copper addi-tion was 80 mg/kg.Dietary copper addition had no significant effects on lanugo production, wool diameter and fur area ( P>0.05) .Dietary copper addition had significant effects on the contents of total protein ( TP) , albu-min ( ALB) , globulin ( GLB) and urea nitrogen ( UN) , albumin/globulin ( A/G) in serum ( P<0.05) .The serum UN content was firstly decreased and then increased with dietary copper addition increasing, and its low-est value was found when copper addition was 80 mg/kg.Dietary copper addition had no significant effect on serum copper-zinc superoxide dismutase ( Cu-Zn SOD) activity ( P>0.05) , but it had significant effect on ser-um ceruloplasmin activity ( P<0.05) .The serum ceruloplasmin activity was firstly increased and then decreased with dietary copper addition increasing, and its highest value was found when copper addition was 80 mg/kg. Dietary copper addition had significant effect on liver index ( P<0.05) , but it had no significant effects on oth-er organ indices ( P>0.05) .When copper addition was 80 mg/kg, the liver index had the highest value.Con-sidering all indices of this experiment, the appropriate copper addition is 20 to 80 mg/kg for weaning to 2-month-old long hairy rabbits.关键词
铜/长毛兔/生产性能/血清指标Key words
copper/long hairy rabbits/performance/serum indices分类
农业科技引用本文复制引用
张永翠,程光民,伏桂华,刘公言,姜八一,谭兴智,刘建胜..饲粮中铜添加量对断奶至2月龄长毛兔生产性能和血清指标的影响[J].动物营养学报,2017,29(12):4365-4371,7.基金项目
山东省现代农业产业技术体系毛皮动物产业创新团队( SDAIT-18-011-03) （ SDAIT-18-011-03）
