摘要
快速增长和肌肉增生型肉鸡品种选育导致大量异质鸡胸肉的产生。其中,类PSE(Pale soft and exudative-like meat)肉由于颜色苍白、质软、渗出率高严重影响消费者购买欲望,且由于蛋白变性导致的加工特性差、出品率低等问题给肉类加工业造成巨大损失。宰前应激会刺激动物机体神经-内分泌系统,影响免疫系统和生理代谢功能,造成宰后初期肌肉生理生化失调,也会对肉品质产生影响。本文旨在综述高温运输诱导类PSE肉的发生机制,探讨高温运输应激对肉鸡应激反应、能量代谢、氧化还原状态、钙离子通道蛋白和热休克蛋白70的影响,以期为改善肉鸡福利和降低类PSE肉的发生提供理论指导。
Broilers have been intensively selected for rapid growth,increased breast-muscle mass,and conformation.However,this has been accompanied by several meat quality defects.Due to the discolored appearance,soft texture and poor water holding capacity,pale,soft and exudative(PSE)-like meat reduces consumers′purchasing demand.Moreover,the poor processing properties and low yield induced by protein denaturation,lead to huge losses to modern meat industry.Pre-slaughter stress can stimulate animals′nervous and endocrine systems,affect the immune system and physiological metabolism leading to physiological and biochemical changes during the early postmortem period,which subsequently affect meat quality.The current article aims to review the mechanism of transport under high temperature-induced PSE-like meat,and to discuss the effects of transport under high temperature on stress response,energy metabolism,redox system,calcium channel components and heat shock protein 70,trying to provide a theoretical basis for improving broiler welfare and reducing the incidence of PSE-like meat.
作者
邢通
徐幸莲
王虎虎
XING Tong;XU Xinglian;WANG Huhu(National Centre of Meat Quality and Safety Control,Nanjing Agricultural University,Nanjing,Jiangsu 210095)
出处
《中国家禽》
北大核心
2019年第8期1-4,共4页
China Poultry
基金
现代农业产业技术体系建设专项资金(CARS-41)
江苏现代农业产业技术体系(JATS(2018)282)