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作者

Li H Meng X Wan W Liu H Sun M Wang H Wang J

作者单位

Yingsheng East Road, Tai'an, 271018, Shandong, China. Department of Basic Medicine, Taishan Medical University, Environmental Health, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, China. Environmental Health, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, China. jtwang@sdau.edu.cn. Laboratory of Aquatic Animal Nutrition & Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention

刊名

Fish Physiology And Biochemistry

年份

2018

ISSN

0920-1742

关键词

Blood parameters Body composition Chromium picolinate Cold stress Growth Nile tilapia

分类号

597

摘要

A feeding trial was conducted to evaluate the effects of chromium picolinate on growth performance, body composition, and biochemical parameters in Nile tilapia Oreochromis niloticus. Five experimental diets were formulated with high-protein diet , low-protein diet , and LP + 0.6, 1.2, or 1.8 mg kg-1 Cr, respectively. Each diet was randomly assigned to four replicate groups of 30 fish per aquarium in a water-circulated rearing system for 60 days. Dietary 1.2 or 1.8 mg kg-1 Cr inclusion signific...更多

A feeding trial was conducted to evaluate the effects of chromium picolinate on growth performance, body composition, and biochemical parameters in Nile tilapia Oreochromis niloticus. Five experimental diets were formulated with high-protein diet , low-protein diet , and LP + 0.6, 1.2, or 1.8 mg kg-1 Cr, respectively. Each diet was randomly assigned to four replicate groups of 30 fish per aquarium in a water-circulated rearing system for 60 days. Dietary 1.2 or 1.8 mg kg-1 Cr inclusion significantly affects the final body weight, weight gain rate, specific growth rate, feed efficiency rate, and protein efficiency ratio of tilapia compare to the LP diet. The Cr inclusion significantly decreased the content of blood urea nitrogen and the blood glucose level generally with increasing Cr inclusion levels. The Cr content of gill tissue was higher than that of back muscle in all treatments, and the addition of 1.2 or 1.8 mg kg-1 Cr significantly enhanced the Cr contents of back muscle. The cold stress test results showed that adding Cr significantly enhanced the serum T3 concentration and reduced the activity of serum creatine kinase and the serum cortisol level. These results indicated that the supplementation of chromium picolinate can improve the growth performance and reshape the serum protein and carbohydrate metabolism profile and has the potentiality to alleviate the detrimental effects of cold stress in Nile tilapia. The low-protein diet with 1.8 mg kg-1 Cr obtained the same growth performance as the high-protein diet.收起

学科

【SCI学科】PHYSIOLOGY;FISHERIES;BIOCHEMISTRY & MOLECULAR BIOLOGY 【ESI学科】PLANT & ANIMAL SCIENCE

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