动物营养学报2011，Vol.23Issue(11)：1938-1945,8.DOI:10.3969/j.issn.1006-267x.2011.11.014
高水平维生素E对幼建鲤生长性能和消化吸收功能的影响
High Levels of Dietary Vitamin E Affect Growth Performance,Digestive and Absorptive Function of Juvenile Jian Carp (Cyprinus carpio var.Jian)
摘要
Abstract
The experiment was aimed to investigate the effects of high levels of dietary vitamin E on growth performance, digestive and absorptive function of juvenile Jian carp ( Cyprinus carpio var. Jian). In a 60-day feeding trial, a total of 1 200 juvenile Jian carp with an average body weight of (9. 46 ±0. 03) g were randomly divided into 8 groups with 3 replicates per group and 50 fish per replicate. The fish in the 8 groups were fed with experimental diets containing graded levels of vitamin E: 7, 107, 757, 1 007, 1 257, 1 507, 1 757 and 2 007 mg/kg, respectively. The results showed as follows: with vitamin E level increasing, the weight gain, feed intake, protein production value, lipid production value, ash production value, hepatopancreas weight, hepatopancreas protein content, intestine weight, intestine protein content, and the activities of tryp-sin, chymotrypsin, lipase, alkaline phosphatase and Na+ , K+ -ATPase in intestinal tract of juvenile Jian carp were firstly increased and then decreased, and the highest values of above indices were found in the group with the diet containing 1 257 mg/kg vitamin E, while the feed conversion ratio showed an opposite trend. Compared with the NRC recommendation requirement group (the group with the diet containing 107 mg/kg vitamin E), the folds height in foregut, midgut and hindgut of juvenile Jian carp in the group with the diet containing 1 257 mg/kg vitamin E was increased by 10. 85% ( P < 0. 05), 7. 48% ( P > 0. 05) and 6. 24% (P <0.05) , respectively. It is concluded that suitable high level of vitamin E can promote the growth, improve the growth and development of digestive organs and enhance the digestive and absorptive function of juvenile Jian carp. Based on the quadratic regression analysis of weight gain, the dietary vitamin E requirement of juvenile Jian carp is estimated to be 1 106 mg/kg.关键词
维生素E/建鲤/生长性能/消化吸收功能Key words
vitamin E/ Jian carp (Cyprinus carpio var. Jian) / growth performance/ digestive and absorptive function分类
农业科技引用本文复制引用
伍曦,罗辉,冯琳,刘扬,姜俊,周小秋..高水平维生素E对幼建鲤生长性能和消化吸收功能的影响[J].动物营养学报,2011,23(11):1938-1945,8.基金项目
国家公益性行业(农业)科研专项经费项目(201003020) （农业）
