投饲频率对杂交鲂生长、饲料利用、消化酶活性及鱼体生化组成的影响

doi:10.14088/j.cnki.issn0439-8114.2019.08.024

湖北农业科学 ›› 2019, Vol. 58 ›› Issue (8): 105-109.doi: 10.14088/j.cnki.issn0439-8114.2019.08.024

投饲频率对杂交鲂生长、饲料利用、消化酶活性及鱼体生化组成的影响

邱婷婷¹, 王秀娟¹, 马恒甲², 吴玉波¹, 陈晓洁¹, 陈晓榕¹, 鲍俊东¹

1.台州学院生命科学学院,浙江台州 318000;
2.杭州市农业科学研究院,杭州 310024

收稿日期:2018-10-12 出版日期:2019-04-25 发布日期:2019-12-04
通讯作者: 吴玉波（1985-）,博士,主要从事水产养殖研究工作,（电话）15867032595（电子信箱）yubowu@126.com
作者简介:邱婷婷（1996-）,女,福建莆田人,本科,主要从事水产养殖方面的研究工作,（电子信箱）1425204246@qq.com
基金资助:
浙江省公益技术研究项目（LGN19C190007）; 台州市科技计划项目（1701ny05）; 杭州市农业科学研究院青年科技人员培养基金项目（2017HNQN-02）

Effect of feeding frequency on growth,feed utilization,digestive enzyme activity and body composition of hybrid bream

QIU Ting-ting¹, WANG Xiu-juan¹, MA Heng-jia², WU Yu-bo¹, CHEN Xiao-jie¹, CHEN Xiao-rong¹, BAO Jun-dong¹

1.College of Life Sciences,Taizhou University,Taizhou 318000,Zhejiang,China;
2.Hangzhou Academy of Agricultural Sciences,Hangzhou 310024,China

Received:2018-10-12 Online:2019-04-25 Published:2019-12-04

摘要/Abstract

摘要： 为研究投饲频率对杂交鲂生长、饲料利用、消化酶活性及鱼体生化组成的影响,在室外微流水水槽中以配合饲料按0.5、1、2、3和4次/d的投饲频率分别投喂杂交鲂幼鱼8周。结果表明,投饲频率从0.5次/d增加至3次/d时,杂交鲂的体增重显著增加,随后投饲频率从3次/d增加至4次/d时,体增重并未显著提高。杂交鲂的摄食率和鱼体脂肪含量随着投饲频率的增加而显著增加,而试验鱼的肠道胰蛋白酶活性和鱼体水分含量则显著降低。饵料系数随着投饲频率的增加呈现先降低后增加的趋势,且0.5次/d组最高,而2次/d和3次/d组最低。各试验组之间的肠道淀粉酶活性、肠道脂肪酶活性、鱼体的蛋白质含量、灰分含量及肌肉氨基酸组成均无显著差异。杂交鲂的适宜投饲频率为3次/d,其饲料利用效率最高。

关键词: 杂交鲂, 投饲频率, 体增重, 饲料利用, 消化酶, 鱼体生化组成

Abstract: An eight-week feeding trial was conducted to examine the growth, feed utilization, digestive enzymes and body composition of juvenile hybrid bream at different feeding frequencies. Fish were fed a test diet at 0.5,1,2,3 or 4 meals/d. The weight gain significantly increased with increase in feeding frequency from 0.5 to 3 meal/d, and afterward did not change with feeding frequency from 3 to 4 meal/d. With the increasing of feeding frequency, the feed intake and body lipid content of fish significant increased, while intestinal trypsin activity and body moisture content of fish significant decreased. The feed conversion ratio exhibited a downward trend first and then an upward trend, with the increasing of feeding frequency, and fish fed 0.5 meals/d exhibited highest FCR, while fish fed 2 and 3 meals/d exhibited lowest FCR. No significant differences were found in intestinal amylase activity, intestinal lipase activity, body crude protein content, body ash content and muscle amino acid composition among all the feeding frequencies. The present study reveals that the optimum feeding frequency is 3 meals/d for hybrid bream with the highest feed utilization.

Key words: hybrid bream, feeding frequency, weight gain, feed utilization, digestive enzyme, body composition

中图分类号:

S964.3

邱婷婷, 王秀娟, 马恒甲, 吴玉波, 陈晓洁, 陈晓榕, 鲍俊东. 投饲频率对杂交鲂生长、饲料利用、消化酶活性及鱼体生化组成的影响[J]. 湖北农业科学, 2019, 58(8): 105-109.

QIU Ting-ting, WANG Xiu-juan, MA Heng-jia, WU Yu-bo, CHEN Xiao-jie, CHEN Xiao-rong, BAO Jun-dong. Effect of feeding frequency on growth,feed utilization,digestive enzyme activity and body composition of hybrid bream[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(8): 105-109.

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投饲频率对杂交鲂生长、饲料利用、消化酶活性及鱼体生化组成的影响

Effect of feeding frequency on growth,feed utilization,digestive enzyme activity and body composition of hybrid bream

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