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屠宰前运输6小时的成年鸸鹋(新荷兰鸸鹋)的胴体产量和肉质特性。

Carcass yields and meat quality characteristics of adult emus (Dromaius novaehollandiae) transported for 6h before slaughter.

作者信息

Menon Deepa G, Bennett Darin C, Uttaro Bethany, Schaefer Allan L, Cheng Kimberly M

机构信息

Avian Research Centre, Faculty of Land and Food Systems, University of British Columbia, 2357 Main Mall, Vancouver, BC V6T 1Z4, Canada.

Lacombe Research Centre, Agriculture and AgriFood Canada, 6000 C and E Trail, Lacombe, Alberta T4L 1W1, Canada.

出版信息

Meat Sci. 2014 Oct;98(2):240-6. doi: 10.1016/j.meatsci.2014.05.027. Epub 2014 Jun 8.

Abstract

The meat quality characteristics of adult emus transported for 6h before slaughter were determined. Forty-two emus were used in two trials, undertaken under warm and cool weather conditions, respectively. Male emus had significantly higher fat yields than females (12.43kg vs 9.5kg, P=0.002). About 38.1% of the emus had no wounds or bruises, 40.5% had bruises, while 21.4% had small wounds after transport. Meat from injured emus had significantly higher pH45. In warm weather, emus experienced significantly higher loss in body weight than that under cool weather. Drip loss in meat after 24h of storage was higher in emus which had greater live weight loss after transport (r=0.66, P<0.0001), confirming the adverse effects of transport stress on meat quality. Nutrient supplementation did not significantly affect processing yield or meat quality characteristics. This study points to the need for optimizing transport conditions of emus to maintain meat quality.

摘要

测定了屠宰前运输6小时的成年鸸鹋的肉质特性。在两项试验中使用了42只鸸鹋,分别在温暖和凉爽的天气条件下进行。雄性鸸鹋的脂肪产量显著高于雌性(12.43千克对9.5千克,P = 0.002)。运输后,约38.1%的鸸鹋没有伤口或瘀伤,40.5%有瘀伤,而21.4%有小伤口。受伤鸸鹋的肉pH45显著更高。在温暖天气下,鸸鹋的体重损失显著高于凉爽天气下的体重损失。运输后活体体重损失较大的鸸鹋,储存24小时后肉的滴水损失更高(r = 0.66,P < 0.0001),证实了运输应激对肉质的不利影响。营养补充对加工产量或肉质特性没有显著影响。本研究指出需要优化鸸鹋的运输条件以保持肉质。

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