畜牧兽医学报2018，Vol.49Issue(5)：986-995,10.DOI:10.11843/j.issn.0366-6964.2018.05.013
饲粮维生素D和钙水平对冬毛期短毛雄性黑水貂生产性能、血清生化指标和脏器指数的影响
Effects of Dietary Vitamin D and Calcium Levels on Production Performance, Serum Biochemical Parameters and Organ Indexes of Male Standard Mink during Winter Fur-growing Period
摘要
Abstract
The aim of this study was to investigate the effects of dietary vitamin D and calcium levels on production performance,serum biochemical parameters and organ indexes of male mink under the fixed ratio of calcium to phosphorus.One hundred and seventeen healthy male minks with (135±5) day-old with similar body weight were randomly divided into 9 groups with 13 replicates per group and 1 mink per replicate.The experiment was conducted with a 3 × 3 factorial design using a basal diet containing 2 300 IU · kg-1 vitamin D and 2.0％ Ca.The dietary ratio of calcium to phosphorus was fixed to 1.7.Nine kinds of diets were prepared in the experiment.The supplementary vitamin D levels were 0,2 000 and 4 000 IU · kg-1 of the diets,respectively,while supplementary Ca levels were 0％,0.4％,0.8％,respectively.Calcium and vitamin D lev els were 2.0％ versus 2 300 IU · kg-1,2.0％ versus 4 300 IU · kg-1,2.0％ versus 6 300 IU· kg-1,2.4％ versus 2 300 IU· kg-1,2.4％ versus 4 300 IU· kg-1,2.4％ versus 6 300 IU· kg-1,2.8％ versus 2 300 IU · kg-1,2.8％ versus 4 300 IU · kg-1,2.8％ versus 6 300 IU · kg-1.The test lasted for 60 days.Production performance,serum nitrogen metabolism indexes and fat metabolism indexes were measured,and organ index was calculated.The results showed that:1) When the calcium supplementation level was 0％,the skin length of mink significantly increased (P＜0.05).The vitamin D and calcium levels had no significant effect on the body weight,body length and fur quality of mink (P＞0.05).2)The serum TP concentration significantly increased(P＜0.05) and serum TG concentration significantly decreased (P＜0.05) when the addtion level of vitamin D was 2 000 IU · kg-1.When the supplementary level of calcium was 0.8％,the serum HDL concentration of mink significantly increased (P＜0.05),and the concentration of LDL significantly decreased (P＜0.01).3) 0.8％ calcium supplementation significantly increased mink heart index,liver index and spleen index(P＜0.05),vitamin D supplementation in 0-2 000 IU · kg-1 significantly increased mink kidney index(P＜0.01).In conclusion,under the conditions of this experiment,when the dietary supplementation is 0-2 000 IU · kg-1 vitamin D (total 2 300-4 300 IU · kg-1 vitamin D in diet),protein metabolism and kidney index of mink can be promoted;when the dietary supplementation is 0.8％ Ca(total 2.8％ Ca in diet),heart index,liver index and spleen index of mink can be promoted.关键词
维生素D/钙/磷/水貂/生产性能/血清生化/脏器指数Key words
vitamin D/calcium/phosphorus/mink/production performance/serum biochemical parameters/organ indexes分类
农业科技引用本文复制引用
王静,张海华,徐逸男,李仁德,张雪蕾,蔡熙姮,李光玉..饲粮维生素D和钙水平对冬毛期短毛雄性黑水貂生产性能、血清生化指标和脏器指数的影响[J].畜牧兽医学报,2018,49(5):986-995,10.基金项目
中国农业科学院基本科研业务费(CAAS-ASTIP-2017-ISAPS) （CAAS-ASTIP-2017-ISAPS）
