水产学报2012，Vol.36Issue(3)：459-465,7.DOI:10.3724/SP.J.1231.2012.27569
丙氨酰-谷氨酰胺投喂方式对建鲤生长和抗急性拥挤胁迫能力的影响
Effect of feeding modes of Ala-Gln on growth and resistance to crowding stress of Cyprinus carpio var.jian
摘要
Abstract
The trial was carried out on healthy Cyprinus carpio var.jian with the initial weight(33. 52 ± 0.17) g in a single recirculating system for 8 weeks. Diet was administered at concentrations 0.0% (control diet) and 0.5% (trial diet) Ala-Gin of dietary dry matter, which were fed to the C. Carpio xai.jian in five different feeding modes, continuously fed by control diet during eight weeks( I .control group),trail diet at an interval of two weeks ( II), trail diet before four weeks at an interval of four weeks ( HI), trail diet after four weeks at an interval of four weeks (IV), and continuously fed by trail diet during eight weeks ( V ). Acute crowding stress was implemented at the last of experiment. The trail was conducted to investigate the effects of feeding modes of Ala-Gin on growth and the resisence to acute crowding stress for C. Carpio var. Jian. Results indicated that growth of different feeding modes of Ala-Gin was significantly higher than that of control group( P <0. 05). Specific growth rate of II was higher than that of DI, IV, V groups(P < 0. 05) and that of M was higher than that of V group(P <0. 05). After acute crowding stress, Serum cortisol reached peak at 0 h and glucose at lh,serum HSP70 remained high level before 1 -12 h then declined,at last,restored the normal level until 48 h. Serum cortisol and glucose were lower in every feeding mode than in control group ( P < 0. 05). The smallest increase of serum glucose was II group, The first recovery occurred in II and III group after stress. Serum HSP70 in every feeding mode was significantly higher than that in the control group( P <0.05) ,and returned to normal state in 48 h and 72 h. Serum HSP70 in IV and V groups was still significantly higher than the control(P <0.05). In the current experiment,it concluded that adding Ala-Gin could improve the growth and resistance to crowding stress of C. Carpio war. Jian. There were significant differences of every feeding mode. Given economic efficiency and practicability, interval feeding modes will be suggested in the practical culture of C. Carpio \ar.jian.关键词
建鲤/丙氨酰-谷氨酰胺/生长/拥挤胁迫Key words
Cyprinus carpio var. Jian/ Ala-Gin/ growth/ immune/ crowding stress分类
农业科技引用本文复制引用
王桂芹,芦洪梅,牛小天,李子平,韩宇田,赵朝阳,秦贵信..丙氨酰-谷氨酰胺投喂方式对建鲤生长和抗急性拥挤胁迫能力的影响[J].水产学报,2012,36(3):459-465,7.基金项目
中国博士后基金资助(200763016) （200763016）
农业部淡水鱼类遗传育种和养殖生物学重点开放实验室开放基金资助(BZ2009-01) （BZ2009-01）
