Effects of Dietary Vitamin C Supplemental Level on Growth Performance, Muscle Quality and Antioxidant Indices of Juvenile Hybrid Sturgeon (Acipenser schrenckii&times;Acipenser baeri)

WU Jinping; RUAN Rui; CHEN Xihua; CHU Zhipeng; LI Yan; YANG Wenjie

doi:10.3969/j.issn.1006-267x.2020.01.053

2020 , Vol. 32 >Issue 1: 455 - 462

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.01.053

Effects of Dietary Vitamin C Supplemental Level on Growth Performance, Muscle Quality and Antioxidant Indices of Juvenile Hybrid Sturgeon (Acipenser schrenckii×Acipenser baeri)

WU Jinping ,
RUAN Rui ,
CHEN Xihua ,
CHU Zhipeng ,
LI Yan ,
YANG Wenjie

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Key Laboratory of Freshwater Biodiversity Conservation of Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery, Wuhan 430223, China

Received date: 2019-06-20

Online published: 2020-01-19

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Abstract

This experiment was conducted to study the effects of dietary vitamin C supplemental level on growth performance, muscle quality and antioxidant indices of juvenile hybrid sturgeon (Acipenser schrenckii×Acipenser baeri). A total of 180 healthy juvenile hybrid sturgeon with initial body weight of (50.47±0.90) g were randomly divided into 4 groups with 3 replicates per group and 15 fish per replicate. Fish in the four groups were fed the beasl diets supplemented with 0, 200, 800 and 4 800 mg/kg vitamin C, respectively. The experiment lasted for 84 days. The results showed as follows:1) dietary vitamin C supplemental level had no significant effects on weight gain rate, feed conversion rate, viscerosomatic index, hepatosomatic index, condition factor and survival rate of juvenile hybrid sturgeon (P>0.05). 2) Dietary vitamin C supplemental level had no significant effects on muscle cohesiveness and springiness of juvenile hybrid sturgeon (P>0.05). The muscle hardness of 200, 800 and 4 800 mg/kg vitamin C groups was significantly higher than that of 0 mg/kg vitamin C group (P<0.05), the muscle resilience of 800 and 4 800 mg/kg vitamin C groups was significantly higher than that of 0 mg/kg vitamin C group (P<0.05), the muscle gumminess of 800 and 4 800 mg/kg vitamin C groups was significantly higher than that of 0 and 200 mg/kg vitamin C groups (P<0.05), and the muscle chewiness of 800 and 4 800 mg/kg vitamin C groups was significantly higher than that of 0 mg/kg vitamin C group (P<0.05). 3) Dietary vitamin C supplemental level had no significant effects on the contents of crude protein, moisture, ash and crude lipid in muscle of juvenile hybrid sturgeon (P>0.05). 4) The muscle total superoxide dismutase activity of 4 800 mg/kg vitamin C group was significantly higher than that of 0 and 200 mg/kg vitamin C groups (P<0.05), the muscle total antioxidant capacity of 800 mg/kg vitamin C group was significantly higher than that of 0 mg/kg vitamin C group (P<0.05), and the muscle malondialdehyde content of 4 800 mg/kg vitamin C group was significantly lower than that of 0, 200 and 800 mg/kg vitamin C groups (P<0.05). In conclusion, diet supplemented with 800 mg/kg vitamin C has no significant effects on growth performance and muscle nutrient composition of juvenile hybrid sturgeon, however, it can improve the muscle quality and antioxidant capacity of juvenile hybrid sturgeon.

Key words： hybrid sturgeon (Acipenser schrenckii×Acipenser baeri); vitamin C; growth performance; muscle texture; muscle composition; antioxidant capacity

Cite this article

WU Jinping , RUAN Rui , CHEN Xihua , CHU Zhipeng , LI Yan , YANG Wenjie . Effects of Dietary Vitamin C Supplemental Level on Growth Performance, Muscle Quality and Antioxidant Indices of Juvenile Hybrid Sturgeon (Acipenser schrenckii×Acipenser baeri)[J]. Chinese Journal of Animal Nutrition, 2020 , 32(1) : 455 -462 . DOI: 10.3969/j.issn.1006-267x.2020.01.053

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