Impacts of pre-transport fasting time on blood parameters, carcass characteristics and meat quality of Japanese quails

Luana Kelly Lopes, MP Maciel, F. V. Silva, L. Oliveira, Luiz Felipe Martins Souza
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Abstract

The objective of this research was to evaluate the effects of different fasting times before transport to the slaughterhouse on blood parameters, carcass characteristics and meat quality of Japanese quails. In total, 300 Japanese quails were used, with an average age of 14 months (discard age) and an initial body weight of 185.3 ± 7.3 g. The quails were distributed in a completely randomised design with six treatments and five replications of 10 birds each. The treatments consisted of different fasting periods on the farm: zero (control), 1 hour and 30 minutes, 3 hours, 4 hours and 30 minutes, 5 hours and 30 minutes and 7 hours. The quails showed higher blood glucose concentrations with increasing fasting time, but there was no increase in total proteins, albumin, lactate, creatine kinase, uric acid, globulin and the albumin/globulin ratio. The weight and yield of the hot carcass and the weight of the cold carcass decreased with increasing fasting time. Quails that fasted for 7 hours had lower hot carcass and cold carcass weights compared to quails that did not fast. There was no influence of fasting time on meat quality. A fasting period of 5 hours and 30 minutes before transportation is recommended to ensure proper emptying of the digestive tract and the maintenance of the carcass weight of Japanese quails.
运输前禁食时间对日本鹌鹑血液参数、胴体特征和肉质的影响
本研究的目的是评估日本鹌鹑在运往屠宰场前不同禁食时间对其血液参数、胴体特征和肉质的影响。研究共使用了 300 只日本鹌鹑,平均日龄为 14 个月(弃雏日龄),初始体重为 185.3 ± 7.3 克。处理包括在农场的不同禁食期:零(对照组)、1 小时 30 分钟、3 小时、4 小时 30 分钟、5 小时 30 分钟和 7 小时。鹌鹑的血糖浓度随着空腹时间的延长而升高,但总蛋白、白蛋白、乳酸盐、肌酸激酶、尿酸、球蛋白和白蛋白/球蛋白比率没有增加。热胴体的重量和产量以及冷胴体的重量随着禁食时间的延长而减少。与不禁食的鹌鹑相比,禁食 7 小时的鹌鹑热胴体和冷胴体重量较低。禁食时间对肉质没有影响。建议在运输前禁食 5 小时 30 分钟,以确保日本鹌鹑消化道适当排空并保持胴体重量。
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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