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Effects of prolonged photoperiod on growth performance, serum lipids and meat quality of Jinjiang cattle in winter

OBJECTIVE: This study was conducted to investigate the potential effects of prolonged photoperiod on the serum lipids, carcass traits, and meat quality of Jinjiang cattle during winter. METHODS: Thirty-four Jinjiang bulls aged between 14 and 16 months were randomly assigned to two groups that were a...

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Detalles Bibliográficos
Autores principales: Yu, Yan, Qiu, Jingyun, Cao, Jincheng, Guo, Yingying, Bai, Hui, Wei, Shengjuan, Yan, Peishi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Animal Bioscience 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8495339/
https://www.ncbi.nlm.nih.gov/pubmed/33677914
http://dx.doi.org/10.5713/ab.20.0750
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author Yu, Yan
Qiu, Jingyun
Cao, Jincheng
Guo, Yingying
Bai, Hui
Wei, Shengjuan
Yan, Peishi
author_facet Yu, Yan
Qiu, Jingyun
Cao, Jincheng
Guo, Yingying
Bai, Hui
Wei, Shengjuan
Yan, Peishi
author_sort Yu, Yan
collection PubMed
description OBJECTIVE: This study was conducted to investigate the potential effects of prolonged photoperiod on the serum lipids, carcass traits, and meat quality of Jinjiang cattle during winter. METHODS: Thirty-four Jinjiang bulls aged between 14 and 16 months were randomly assigned to two groups that were alternatively subjected to either natural daylight +4 h supplemental light (long photoperiod, LP) or natural daylight (natural photoperiod, NP) for 96 days. The potential effects on the levels of serum lipids, carcass traits, meat quality, and genes regulating lipid metabolism in the intramuscular fat (IMF) of the cattle were evaluated. RESULTS: Jinjiang cattle kept under LP showed significant increase in both dry matter intake and backfat thickness. the serum glucose and the plasma leptin levels were significantly reduced, while that of melatonin and insulin were observed to be increased. The crude fat contents of biceps femoris muscle and longissimus dorsi muscle were higher in LP than in NP group. In longissimus dorsi muscle, the proportions of C17:0 and C18:0 were significantly higher but that of the C16:1 was found to be significantly lower in LP group. The relative mRNA expressions in IMF of longissimus dorsi muscle, the lipid synthesis genes (proliferator-activated receptor gamma, fatty acid-binding protein) and the fatty acid synthesis genes (acetyl-coa carboxylase, fatty acid synthetase, 1-acylglycerol-3-phosphate acyltransferase) were significantly up-regulated in LP group (p<0.05); whereas the hormone-sensitive lipase and stearoyl-CoA desaturase 1 were significantly down-regulated in LP than in NP group. CONCLUSION: Prolonged photoperiod significantly altered the growth performance, hormonal levels, gene expression and fat deposition in Jinjiang cattle. It suggested that the LP improved the fat deposition by regulating the levels of different hormones and genes related to lipid metabolism, thereby improving the fattening of Jinjiang cattle during winter.
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spelling pubmed-84953392021-10-08 Effects of prolonged photoperiod on growth performance, serum lipids and meat quality of Jinjiang cattle in winter Yu, Yan Qiu, Jingyun Cao, Jincheng Guo, Yingying Bai, Hui Wei, Shengjuan Yan, Peishi Anim Biosci Article OBJECTIVE: This study was conducted to investigate the potential effects of prolonged photoperiod on the serum lipids, carcass traits, and meat quality of Jinjiang cattle during winter. METHODS: Thirty-four Jinjiang bulls aged between 14 and 16 months were randomly assigned to two groups that were alternatively subjected to either natural daylight +4 h supplemental light (long photoperiod, LP) or natural daylight (natural photoperiod, NP) for 96 days. The potential effects on the levels of serum lipids, carcass traits, meat quality, and genes regulating lipid metabolism in the intramuscular fat (IMF) of the cattle were evaluated. RESULTS: Jinjiang cattle kept under LP showed significant increase in both dry matter intake and backfat thickness. the serum glucose and the plasma leptin levels were significantly reduced, while that of melatonin and insulin were observed to be increased. The crude fat contents of biceps femoris muscle and longissimus dorsi muscle were higher in LP than in NP group. In longissimus dorsi muscle, the proportions of C17:0 and C18:0 were significantly higher but that of the C16:1 was found to be significantly lower in LP group. The relative mRNA expressions in IMF of longissimus dorsi muscle, the lipid synthesis genes (proliferator-activated receptor gamma, fatty acid-binding protein) and the fatty acid synthesis genes (acetyl-coa carboxylase, fatty acid synthetase, 1-acylglycerol-3-phosphate acyltransferase) were significantly up-regulated in LP group (p<0.05); whereas the hormone-sensitive lipase and stearoyl-CoA desaturase 1 were significantly down-regulated in LP than in NP group. CONCLUSION: Prolonged photoperiod significantly altered the growth performance, hormonal levels, gene expression and fat deposition in Jinjiang cattle. It suggested that the LP improved the fat deposition by regulating the levels of different hormones and genes related to lipid metabolism, thereby improving the fattening of Jinjiang cattle during winter. Animal Bioscience 2021-09 2021-02-15 /pmc/articles/PMC8495339/ /pubmed/33677914 http://dx.doi.org/10.5713/ab.20.0750 Text en Copyright © 2021 by Animal Bioscience https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Article
Yu, Yan
Qiu, Jingyun
Cao, Jincheng
Guo, Yingying
Bai, Hui
Wei, Shengjuan
Yan, Peishi
Effects of prolonged photoperiod on growth performance, serum lipids and meat quality of Jinjiang cattle in winter
title Effects of prolonged photoperiod on growth performance, serum lipids and meat quality of Jinjiang cattle in winter
title_full Effects of prolonged photoperiod on growth performance, serum lipids and meat quality of Jinjiang cattle in winter
title_fullStr Effects of prolonged photoperiod on growth performance, serum lipids and meat quality of Jinjiang cattle in winter
title_full_unstemmed Effects of prolonged photoperiod on growth performance, serum lipids and meat quality of Jinjiang cattle in winter
title_short Effects of prolonged photoperiod on growth performance, serum lipids and meat quality of Jinjiang cattle in winter
title_sort effects of prolonged photoperiod on growth performance, serum lipids and meat quality of jinjiang cattle in winter
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8495339/
https://www.ncbi.nlm.nih.gov/pubmed/33677914
http://dx.doi.org/10.5713/ab.20.0750
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