摘要
本试验选取60只体重约150 g的中华鳖,随机分为5组,每组4个重复,每个重复3只进行为期60 d的养殖试验。1组为对照组,4个试验组分别对其投喂100、200、400 mg/kg和2000 mg/kg多聚磷酸酯维生素C,每天饲喂2次。养殖试验结束后,宰杀所有试验鳖,取腿肌、裙边和背甲样品进行分析。试验结果表明,饲料中添加维生素C能改善中华鳖体组成和增加组织胶原蛋白含量。随着饲料维生素C添加量的增加,肌肉和裙边必需氨基酸、非必需氨基酸、鲜味氨基酸和总氨基酸的含量也逐渐升高,且肌肉中的不饱和脂肪酸也逐渐升高,但肌肉中的饱和脂肪酸、单不饱和脂肪酸逐渐降低。饲料中添加维生素C能够提高肌肉、裙边、肝脏和背甲中胶原蛋白(以羟脯氨酸计)含量。
Sixty Chinese soft-shelled turtles （average weight 150g）were randomly divided into 5 groups,each included 4 replicates of 3 Chinese soft-shelled turtles.Experimental diets supplemented with five levels of 0,100,200,400,2000 mg/kg dietary vitamin C in the form of L-ascorbyl-2-polyphoshate were respectively fed to turtles twice a day.After 60 days of feeding,all turtles were decollated to collect muscle and carapace for analysis.The results showed that essential amino acids （EAA）, non-essential amino acids （NEAA）,total amino acids （TAA）and fresh flavor amino acids （FAA）levels of muscle and calipash increased with increasing dietary vitamin C levels.Also polyunsaturated fatty acids （PUFA）increased with increasing of dietary vitamin C levels,while saturated fatty acids （SFA）and monounsaturated fatty acids （MUFA）deereased.Dietary vitamin C supplementation also increased contents of collagen in muscle, liver, carapace and calipash of Chinese soft-shelled turtle.
出处
《中国饲料》
北大核心
2011年第19期34-37,共4页
China Feed
关键词
维生素C
中华鳖
体组成
胶原蛋白
vitamin C
Chinese soft-shelled turtle
body composition
collagen
