Dietary xanthophyll improved growth, antioxidant, pigmentation and meat quality in the southern catfish (<i>Silurus soldatovi meridionalis</i> Chen)

Dietary xanthophyll improved growth, antioxidant, pigmentation and meat quality in the southern catfish (Silurus soldatovi meridionalis Chen)

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Chaoqun He^a, Haoyu Geng^a, Yawen Qin^a, Peng Yang^a, Wenqiang Wang^a, Kangsen Mai^a, Fei Song^a^,^b^,^*

Animal Nutrition | 2023, 13(1) : 101 - 115

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Animal Nutrition | 2023, 13(1): 101-115

• Original Research Article •

Dietary xanthophyll improved growth, antioxidant, pigmentation and meat quality in the southern catfish (Silurus soldatovi meridionalis Chen)

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Chaoqun He^a, Haoyu Geng^a, Yawen Qin^a, Peng Yang^a, Wenqiang Wang^a, Kangsen Mai^a, Fei Song^a^,^b^,^*

Affiliations

^aInstitute of Modern Aquaculture Science and Engineering (IMASE), Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, China

^bSouthern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, China

Published: 2023-06-10 doi: 10.1016/j.aninu.2022.12.005

Outline

Abstract

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Xanthophyll has multiple physiological functions to improve the quality of farmed animals. The present study aimed to investigate the effects of xanthophyll on the growth performance, antioxidation, immunity, pigmentation and meat quality of southern catfish (Silurus soldatovi meridionalis Chen). Juvenile southern catfish (18.35 ± 0.04 g) were randomly allocated into 24 cages (30 juveniles per cage), and fed diets with different dietary xanthophyll levels (at 14, 42, 80, 108, 126 and 152 mg/kg, dry matter of diet) twice daily for 8 weeks. Results indicated that the diet with 80 mg/kg xanthophyll induced a higher specific growth rate (SGR), feed efficiency ratio and protein productive value. Moreover, the 80 mg/kg xanthophyll diet also increased complement 3, immunoglobulin M (IgM) and lysozyme content more than the other groups. The mRNA expression level of inflammation-related genes and antioxidant enzyme activities further confirmed the effects of 80 mg/kg dietary xanthophyll on improving immune response. The present study also found that the 126 mg/kg xanthophyll diet significantly enhanced the content of total carotenoids and xanthophyll, hydroxyproline, collagen and amino acid in muscle. The diet with 126 mg/kg xanthophylls also induced lower drip loss, thawing loss, centrifugal loss, cooking loss and higher muscle adhesiveness, cohesiveness, springiness, gumminess and chewiness than the other treatments. In conclusion, quadratic regression model analysis based on SGR and IgM revealed that the optimum xanthophyll level in the diet was 86.78 and 84.63 mg/kg, respectively. Moreover, broken line regression analysis based on xanthophyll content in dorsal skin and chewiness in muscle demonstrated that the optimal xanthophyll level was between 89.73 and 108.66 mg/kg in the diet of southern catfish (S. soldatovi meridionalis Chen).

Key words

Xanthophyll / Growth performance / Antioxidant capacity / Fish quality / Southern catfish (Silurus soldatovi meridionalis Chen)

Cite this Article

Chaoqun He, Haoyu Geng, Yawen Qin, Peng Yang, Wenqiang Wang, Kangsen Mai, Fei Song. Dietary xanthophyll improved growth, antioxidant, pigmentation and meat quality in the southern catfish (Silurus soldatovi meridionalis Chen)[J]. Animal Nutrition, 2023 , 13 (1) : 101 -115 . DOI: 10.1016/j.aninu.2022.12.005

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Year 2023 volume 13 Issue 1

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Article Info

doi: 10.1016/j.aninu.2022.12.005

Receive Date：2022-08-03
Online Date：2026-02-03
Published：2023-06-10

Article Data

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History

Received：2022-08-03
Revised：2022-12-14
Accepted：2022-12-21

Affiliations

^bSouthern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, China

Corresponding:

^* Corresponding author. E-mail address: songfei@m.scnu.edu.cn (F. Song).

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表12种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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