水生生物学报2017，Vol.41Issue(1)：108-113,6.DOI:10.7541/2017.14
硫胺素水平对团头鲂幼鱼生长、肝组织沉积量及血液生化指标的影响
EFFECTS OF DIETARY THIAMIN LEVELS ON GROWTH, HEPATIC THIAMIN CONTENTS AND PLASMA BIOCHEMICAL INDEXES OF JUVENILE BLUNT SNOUT BREAM, MEGALOBRAMAAMBLYCEPHALA
摘要
Abstract
This study was conducted to determine the optimal dietary thiamine requirement of juvenile blunt snout bream (Megalobrama amblycephala) on the basis of growth parameters, hepatic thiamine contents and plasma bio-chemical indexes. 720 fishes [average initial weight:(0.30±0.01) g] were fed six isonitrogenous and isoenergetic diets containing different thiamine levels (0, 0.51, 0.98, 1.59, 2.13and 2.68 mg/kg) 3 times daily for 8 weeks, respectively. Each diet was tested in four replicates, and each replicate holds 30 fish. The results showed that both the weight gain and specific growth rate of fish at 0.98, 1.59, 2.13 and 2.68 mg/kg groups were significantly higher than the control group (P<0.05). Survival rate increased significantly as dietary thiamin levels increased from 0 to 2.13 mg/kg (P<0.05). Plasma glucose level decreased significantly (P<0.05) as dietary thiamine levels increased from 0 to 1.59 mg/kg, but it increased significantly (P<0.05) with further increased thiamine levels. The addition of thiamine except 0.51 mg/kg group significantly increased plasma pyruvate level (P<0.05). On the basis of the broken-line analysis of weight gain rate and hepatic thiamin contents, the optimal dietary thiamin requirement of juvenile blunt snout bream was 1.48 and 1.84 mg/kg, respectively.关键词
团头鲂/硫胺素/生长/肝脏硫胺素沉积量/血液生化Key words
Megalobrama amlycepala/Thiamin/Growth/Hepatic thiamin contents/Plasma biochemical indexes分类
农业科技引用本文复制引用
李鹏飞,王莹,蒋广震,王菲,刘文斌..硫胺素水平对团头鲂幼鱼生长、肝组织沉积量及血液生化指标的影响[J].水生生物学报,2017,41(1):108-113,6.基金项目
现代农业产业技术体系建设专项-国家大宗淡水鱼类产业技术体系资金(No:CARS-46-20) （No:CARS-46-20）
农业公益性行业科研专项-水产养殖动物营养需求与高效配合饲料开发(No:201003020)资助[Supported by the National Technology System for Conventional Freshwater Fish Industries of China (CARS-46-20) （No:201003020）
Special Fund for Agro-scientific Research in the Public Interest of Ministry (201003020) （201003020）
