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Liang F, Yan L, Li Y, Jin Y, Zhang J, Che H, Diao J, Gao Y, He Z, Sun R, He Y, Zhou C. Effect of season on slaughter performance, meat quality, muscle amino acid and fatty acid composition, and metabolism of pheasants (Phasianus colchicus). Anim Sci J 2022; 93:e13735. [PMID: 35644952 DOI: 10.1111/asj.13735] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 04/01/2022] [Accepted: 04/14/2022] [Indexed: 11/01/2022]
Abstract
This study aimed to investigate the effect of summer and winter on slaughter performance, muscle quality, flavor-related substance content, and gene expression levels related to the fat metabolism of pheasants. One-hundred 1-day-old pheasants were fed for 5 months starting in March and July and then, respectively, slaughtered in summer (August) and winter (December). The results revealed that compared with summer, winter not only increased pheasant live weight, dressed percentage, full-eviscerated yield, and muscle yield (p < 0.05) but also enhanced the activities of SOD and CAT in serum (p < 0.05). Winter significantly increased meat color, the contents of inosinic acid, and flavor amino acid in muscle. Amino acid contents in leg muscles of pheasants in winter were significantly higher than in summer except for histidine (p < 0.05). Winter increased the contents of muscle mono-unsaturated fatty acid, reducing saturated fatty acid. Summer improved fat synthesis in liver, promoted the deposition of triglycerides and cholesterol, and reduced the expression levels of fat metabolism-related genes in muscle, while winter increased the expression levels of genes related to muscle fat metabolism to provide energy for body and affect muscle fatty acid profile. Overall, pheasants fed in winter had better sensory quality and flavor than summer.
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Affiliation(s)
- Fangfang Liang
- College of Animal Science, Jilin University, Changchun, China
| | - Lei Yan
- New Hope Liuhe Co., Ltd./Quality Control for Feed and Products of Livestock and Poultry Key Laboratory of Sichuan Province, Chengdu, China
| | - Yumei Li
- College of Animal Science, Jilin University, Changchun, China
| | - Yongcheng Jin
- College of Animal Science, Jilin University, Changchun, China
| | - Jing Zhang
- College of Animal Science, Jilin University, Changchun, China
| | - Haoyu Che
- College of Animal Science, Jilin University, Changchun, China
| | - Jizhe Diao
- College of Animal Science, Jilin University, Changchun, China
| | - Yequn Gao
- College of Animal Science, Jilin University, Changchun, China
| | - Zhaolan He
- College of Animal Science, Jilin University, Changchun, China
| | - Ruihong Sun
- College of Animal Science, Jilin University, Changchun, China
| | - Yuntong He
- College of Animal Science, Jilin University, Changchun, China
| | - Changhai Zhou
- College of Animal Science, Jilin University, Changchun, China
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