The effects of the feeding duration of propylene glycol on major meat quality parameters and substantial proteins in the muscle of Akkaraman lambs

IF 7.1 1区 农林科学 Q1 Agricultural and Biological Sciences
Akın Yakan , Hüseyin Özkan , Ufuk Kaya , Hasan Hüseyin Keçeli , Irem Karaaslan , Sevda Dalkiran , Aytaç Akçay , Necmettin Ünal , Savaş Sariözkan , Bilal Akyüz , Korhan Arslan , Baran Çamdeviren , Güven Güngör , Mehmet Küçükoflaz , Ceyhan Özbeyaz
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Abstract

In this study, the effects of propylene glycol (PG) on meat quality and molecular pathways related to energy metabolism in longissimus lumborum muscle on lambs were evaluated. Seventy-two lambs were divided into three groups consisting of 60th, 90th, and 120th of slaughter days. The dosage of the PG and slaughter days were the variables used in the study. Eight animals were slaughtered from each group on each day. The meat quality parameters (e.g., pH, protein, fatty acid profile) and IGF-1, IGFBP4, and DGAT1 (i.e., mRNA and protein levels) were evaluated. The pH 45 min post-slaughter was higher in PG groups on 120th day. On the 4th day after slaughter, the b value was the lowest in the PG3, while 7th day after slaughter it was highest in Con and PG3 on 90th day. The total n3 and n6 were lowest and the NV was highest on 120th day. The IGFBP4 was upregulated in the PG groups on all of the slaughter days. The DGAT1 was upregulated in the PG3 on the 90th day. The IGF-1, DGAT1, IGFBP4 protein levels were found to have increased in the PG3 on 90th day. The IGFBP4 was found to have decreased in the PG3 on 120th day. According to the results of the study, the oral administration of the PG at the 3 mL/kg live weight0.75 for at least 120 days may have positive effects on meat quality in lambs through the IGF-1, DGAT1, and IGFBP4 genes and the proteins encoded by these genes.

丙二醇饲喂时间对阿卡拉曼羔羊主要肉质参数和肌肉中大量蛋白质的影响
本研究评估了丙二醇(PG)对羔羊肉质和腰长肌能量代谢相关分子途径的影响。72只羔羊被分为三组,分别为屠宰日龄60天、90天和120天。研究中使用的变量是 PG 的剂量和屠宰天数。每组每天屠宰 8 只。对肉质参数(如 pH 值、蛋白质、脂肪酸谱)以及 IGF-1、IGFBP4 和 DGAT1(即 mRNA 和蛋白质水平)进行了评估。第120天,屠宰后45分钟PG组的pH值较高。屠宰后第 4 天,PG3 组的 b 值最低,而屠宰后第 7 天,Con 组和 PG3 组的 b 值在第 90 天最高。总 n3 和 n6 最低,NV 在第 120 天最高。在所有屠宰日,PG 组的 IGFBP4 上调。第 90 天,PG3 组的 DGAT1 上调。第 90 天,发现 PG3 组的 IGF-1、DGAT1 和 IGFBP4 蛋白水平升高。第 120 天,发现 PG3 中的 IGFBP4 有所下降。研究结果表明,口服 3 mL/kg 活重 0.75 的 PG 至少 120 天,可通过 IGF-1、DGAT1 和 IGFBP4 基因及其编码的蛋白质对羔羊的肉质产生积极影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Meat Science
Meat Science 工程技术-食品科技
CiteScore
12.60
自引率
9.90%
发文量
282
审稿时长
60 days
期刊介绍: The aim of Meat Science is to serve as a suitable platform for the dissemination of interdisciplinary and international knowledge on all factors influencing the properties of meat. While the journal primarily focuses on the flesh of mammals, contributions related to poultry will be considered if they enhance the overall understanding of the relationship between muscle nature and meat quality post mortem. Additionally, papers on large birds (e.g., emus, ostriches) as well as wild-captured mammals and crocodiles will be welcomed.
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