Effects of Dietary Type on Nutritional Components in Whole Fish and Muscle, Body Color and Muscle Color in Dai-Ju Race Large Yellow Croaker (Pseudosciaena crocea)

GAO Youling, JIANG Lingli, XU Xudong, ZHANG Huien, SHENTU Jikang, WU Xiongfei

doi:10.3969/j.issn.1006-267x.2014.09.052

2014 , Vol. 26 >Issue 9: 2874 - 2882

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.09.052

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Effects of Dietary Type on Nutritional Components in Whole Fish and Muscle, Body Color and Muscle Color in Dai-Ju Race Large Yellow Croaker (Pseudosciaena crocea)

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1. College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China;
2. Ningbo College of Health Sciences, Ningbo 315010, China;
3. Ningbo Academy of Ocean and Fishery, Ningbo 315012, China

Received date: 2014-04-08

Online published: 2014-09-10

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Abstract

Dai-ju race large yellow croaker (Pseudosciaena crocea) is regarded as a high-quality large yellow croaker colony in China. The whole fish and muscle nutritional components, body color and muscle color of farmed large yellow croaker were partly decided by the quality of diet, and those indices were the important indices to measure the quality of Dai-ju race large yellow croaker. Thus, this study aimed to assay the whole fish and muscle nutritional components, body color and muscle color of Dai-ju race large yellow croaker, and the effects of formulated feed and trash fish on quality of Dai-ju race large yellow croaker were evaluated. Two groups of fish were used. One fed trash fish and one fed formulated feed for 22 months. After sampling, the indices of whole body and muscle nutritional components and the indices of body color and muscle color (including L, a and b values) were measured. The results showed as follows: compared with fish fed trash fish, fish fed formulated feed significantly decreased the EE content in whole fish (P<0.05), but significantly increased the contents of EE, leucine (Leu), lysine (Lys), glutamic acid (Glu), total essential amino acids, total delicious amino acids and total amino acids in muscle (P<0.05). The body color and muscle color were not significantly affected by the type of diet (P>0.05). Besides, the body color in different positions of large yellow croaker had a significant difference (P<0.05), and the color of abdomen was more bright with red and yellow than that of back. In conclusion, Dai-ju race large yellow croaker fed formulated feed exhibit a higher nutrient quality in the muscle than those fed trash fish.

Key words： large yellow croaker (Pseudosciaena crocea); feed; nutritional components; body color; muscle color

Cite this article

GAO Youling, JIANG Lingli, XU Xudong, ZHANG Huien, SHENTU Jikang, WU Xiongfei . Effects of Dietary Type on Nutritional Components in Whole Fish and Muscle, Body Color and Muscle Color in Dai-Ju Race Large Yellow Croaker (Pseudosciaena crocea)[J]. Chinese Journal of Animal Nutrition, 2014 , 26(9) : 2874 -2882 . DOI: 10.3969/j.issn.1006-267x.2014.09.052

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