Fermented mixed feed alters growth performance, carcass traits, meat quality and muscle fatty acid and amino acid profiles in finishing pigs

Fermented mixed feed alters growth performance, carcass traits, meat quality and muscle fatty acid and amino acid profiles in finishing pigs

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Shiqi Liu^a^,^b^,^c^,^d, Man Du^a^,^b^,^c^,^d, Yuang Tu^a^,^b^,^c^,^d, Wenjing You^a^,^b^,^c^,^d, Wentao Chen^a^,^b^,^c^,^d, Guoliang Liu^e, Junyue Li^e, Yizhen Wang^a^,^b^,^c^,^d, Zeqing Lu^a^,^b^,^c^,^d, Tenghao Wang^e^,^*, Tizhong Shan^a^,^b^,^c^,^d^,^*

Animal Nutrition | 2023, 12(1) : 87 - 95

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Animal Nutrition | 2023, 12(1): 87-95

• Original Research Article •

Fermented mixed feed alters growth performance, carcass traits, meat quality and muscle fatty acid and amino acid profiles in finishing pigs

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Affiliations

^aCollege of Animal Sciences, Zhejiang University, Hangzhou, China

^bKey Laboratory of Molecular Animal Nutrition (Zhejiang University), Ministry of Education, Hangzhou, China

^cKey Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Hangzhou, China

^dKey Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China

^eZhejiang Qinglian Food Co Ltd, Jiaxing, China

Published: 2023-03-10 doi: 10.1016/j.aninu.2022.09.003

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Abstract

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This study was conducted to investigate the effects of fermented mixed feed (FMF) on growth performance, carcass traits, meat quality, muscle amino acid and fatty acid composition and mRNA expression levels of genes related to lipid metabolism in finishing pigs. In the present study, 144 finishing pigs (Duroc × Berkshire × Jiaxing Black) were randomly allocated to 3 dietary treatments with 4 replicate pens per group and 12 pigs per pen. The dietary treatments included a basal diet (CON), a basal diet + 5%FMF and a basal diet + 10% FMF. The experiment lasted 38d after 4d of acclimation. The results showed that 5% and 10% FMF significantly increased the average daily gain (ADG) of the females but not the males (P < 0.05), but FMF supplementation showed no impact on carcass traits. Moreover, 10% FMF supplementation increased the meat color_45min and meat color_24h values, while it decreased the shear force relative to CON (P < 0.05). In addition, 10% FMF significantly increased the contents of flavor amino acids (FAA), total essential AA (EAA), total non-EAA (NEAA) and total AA relative to CON (P < 0.05). Furthermore, the diet supplemented with 10% FMF significantly increased the concentration of n-3 polyunsaturated fatty acids (PUFA), n-6 PUFA and total PUFA, and the PUFA to saturated fatty acids ratio (P < 0.05), suggesting that FMF supplementation increased meat quality. Moreover, compared with the CON, 10% FMF supplementation increased the mRNA expression of lipogenic genes, including CEBPα, PPARγ, SREBP1 and FABP4, and upregulated the expression of unsaturated fatty acid synthesis (ACAA1 and FADS2). Together, our results suggest that 10% FMF dietary supplementation improved the female pigs’growth performance, improved the meat quality and altered the profiles of muscle fatty acids and amino acids in finishing pigs. This study provides a reference for the production of high-quality pork.

Key words

Fermented mixed feed / Growth performance / Meat quality / Amino acid profile / Fatty acid composition / Finishing pig

Cite this Article

Shiqi Liu, Man Du, Yuang Tu, Wenjing You, Wentao Chen, Guoliang Liu, Junyue Li, Yizhen Wang, Zeqing Lu, Tenghao Wang, Tizhong Shan. Fermented mixed feed alters growth performance, carcass traits, meat quality and muscle fatty acid and amino acid profiles in finishing pigs[J]. Animal Nutrition, 2023 , 12 (1) : 87 -95 . DOI: 10.1016/j.aninu.2022.09.003

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Year 2023 volume 12 Issue 1

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Article Info

doi: 10.1016/j.aninu.2022.09.003

Receive Date：2022-05-12
Online Date：2026-02-03
Published：2023-03-10

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History

Received：2022-05-12
Revised：2022-08-20
Accepted：2022-09-20

Affiliations

^aCollege of Animal Sciences, Zhejiang University, Hangzhou, China

^bKey Laboratory of Molecular Animal Nutrition (Zhejiang University), Ministry of Education, Hangzhou, China

^cKey Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Hangzhou, China

^dKey Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China

^eZhejiang Qinglian Food Co Ltd, Jiaxing, China

Corresponding:

^* Corresponding authors. E-mail addresses: wangth85@126.com (T. Wang)

tzshan@zju.edu.cn (T. Shan).

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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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