动物营养学报2012，Vol.24Issue(1)：78-84,7.DOI:10.3969/j.issn.1006-267x.2012.01.012
维生素A对鹅生长性能及血清生化指标的影响
Vitamin A Affects Growth Performance and Serum Biochemical Parameters of Geese
摘要
Abstract
This experiment was conducted to study the effects of vitamin A on growth performance, serum biochemical parameters and tissue vitamin A content of Qingnonghui geese. Two hundred Qingnonghui geese at 1 day of age were selected and randomly divided into 5 groups with 4 replicates in each group and 10 geese in each replicate. Five groups were supplemented with 0, 1 500, 3 000, 6 000 and 12 000 IU/kg vitamin A in the basal diets, respectively. The experiment lasted for twelve weeks. The results showed as follows; 1) supplemental vitamin A significantly increased daily weight gain and daily feed intake (P <0. 05) , and reduced mortality rate, but had no significant difference in feed/gain at weeks 1 to 4 and 5 to 12 (P >0. 05). 2) At 4 weeks of age, supplemented 6 000 IU/kg vitamin A significantly decreased serum uric acid content (P < 0. 05) , and supplemented 3 000 and 6 000 IU/kg vitamin A significantly increased the serum alkaline phos-phatase activity (P <0.01) , but had no significant difference in the contents of serum total protein, blood glucose and urea nitrogen (P >0. 05) ; at 12 weeks of age, supplemented 6 000 IU/kg vitamin A significantly decreased the contents of serum blood glucose and uric acid (P <0. 05) , and significantly increased the serum alkaline phosphatase activity (P <0. 01) , but had no significant difference in the contents of serum total protein and urea nitrogen (P >0. 05). 3) The serum and liver vitamin A content increased significantly with the increase of dietary vitamin A supplemental levels (P <0. 01). In conclusion, consideration from the growth performance, the optimal dietary levels of vitamin A are 8 000 IU/kg at weeks 1 to 4, and 9 000 IU/kg at weeks 5 to 12. While consideration from the serum biochemical parameters, the optimal dietary level of vitamin A is 6 000 IU/kg at weeks 1 to 4 and 5 to 12.关键词
维生素A/鹅/生长性能/血清生化指标Key words
vitamin A/ goose/ growth performance/ serum biochemical parameters分类
农业科技引用本文复制引用
孙淑洁,王宝维,葛文华,张名爱,李文立..维生素A对鹅生长性能及血清生化指标的影响[J].动物营养学报,2012,24(1):78-84,7.基金项目
国家水禽产业技术体系专项基金(nycytx-45-07) （nycytx-45-07）
青岛市科技计划项目(11-23-23-nsh) （11-23-23-nsh）
