草鱼幼鱼对饲料中泛酸需要量的研究  

Dietary Pantothenic Acid Requirement of Grass Carp(Ctenopharyngodon idella)Fingerlings

作　　者：刘安龙[1] 文华[1] 蒋明[2] 赵智勇[1] 吴凡[2] 刘伟[2] 

机构地区：[1]华中农业大学水产学院,湖北武汉430070 [2]中国水产科学研究院淡水生态与健康养殖重点实验室长江水产研究所,湖北荆州434000

出　　处：《水产科学》2007年第5期263-266,共4页Fisheries Science

基　　金：国家"十五"科技攻关项目(2004BA526B0604);科技部科研院所技术开发研究专项资金资助项目(2003EG134172)

摘　　要：研究了饲料中泛酸钙添加量对平均体重(4.80±0.32)g的草鱼幼鱼生长和部分生理指标的影响。在相同基础配方中分别添加泛酸钙0、8、15、30、60、120、240 mg/kg饲料,进行为期8周的养殖试验,每个处理3个重复。结果表明:饲料中添加泛酸钙能提高草鱼幼鱼的增重率和特定生长率,降低饲料系数,对成活率无显著影响(P>0.05)。对照组的总胆固醇、高密度脂蛋白胆固醇和低密度脂蛋白胆固醇含量显著低于添加组(P<0.05),各添加组无显著差异(P>0.05)。鱼体灰分含量不受饲料中泛酸钙含量的影响,但能提高鱼体水分、蛋白和脂肪含量(P<0.05)。基于特定生长率折线法分析,草鱼幼鱼获得最佳生长时的饲料泛酸钙最低需求量为25 mg/kg。An 8 week feeding trial was conducted to investigate the effect of dietary calcium D-pantothenate supplementation on growth in grass carp（ Ctenopharyngodon idella） fingerlings. Purified basal diets were formulated using the casein as protein source. Calcium D-pantothenate was supplemented to the basal diet at a rate of 0, 8, 15, 30, 60, 120 and 240 mg/kg feed. One of the test diets was fed to the juveniles weighing （4.80 ±0.32） g with triplicates. The results showed that the supplementary dietary calcium D-pantothenate improved weight gain （WG） and specific growth rate （SGR）, and reduced feed conversion ratio （FCR） （ P 〈 0.05 ）, but the survival rate remained unaffected （ P 〉 0.05 ）. The total serum cholesterol, high density lipoprotein cholesterol and low density lipoprotein cholesterol levels were significantly lower in control group than in the groups with calcium D-pantothenate enriched diets（P 〈0.05）. However, there was no significant difference in the juveniles fed the diets supplemented with calcium D-pantothenate. There were significantly higher moisture, protein and lipid contents in the juveniles fed the diets supplemented with calcium D-pantothenate than those fed the control diet （ P 〈 0.05 ）. The carcass ash content in the fish was not affected by the supplemental levels of dietary calcium D-pantothenate. It was suggested that the optimal dietary calcium D-pantothenate be about 25 mg/kg feed for fingerling grass carp.

关 键 词：泛酸钙 草鱼 生长 需求量 

分 类 号：S965.112[农业科学—水产养殖]