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Studies on meat quality of Longissimus dorsi of Yunnan lindigenous Yun-ling and Long-ling goats
Author(s): CHENG Zhi-bin, MAO Hua-ming, JIA Jun-jing, GE Chang-rong, HU Yong-jin, CAO Zhen-hui, HUANG Qi-chao, GU Da-hai
Pages: 18-
21
Year: 2008
Issue:
7
Journal: ANIMAL HUSBANDRY & VETERINARY MEDICINE
Keyword: 云岭黑山羊; 龙陵黄山羊; 背最长肌; 理化特性; 品评试验;
Abstract: 本试验对半放牧饲养条件下云南地方成年云岭黑山羊和龙陵黄山羊肉的理化特性和风味品评进行研究.新出生的云岭黑山羊和龙陵黄山羊各16头用于本试验.试验山羊90 日龄断奶后采用"白天放牧、晚上补饲"的半放牧饲养方式,补充饲料粗蛋白18.5%、代谢能12.5 MJ/kg.饲养360 d后,选择体重最接近的云岭黑山羊和龙陵黄山羊各8头屠宰,取背最长肌分析肉品质.试验结果显示.宰后45 min,云岭黑山羊背最长肌的肉色评分(P=0.04)、CIELAB L* (P=0.05)、a* (P<0.01)、b* (P=0.03)、H°(P=0.03)显著低于龙陵黄山羊.宰后24 h云岭黑山羊背最长肌CIELAB a* (P=0.02)、b* (P=0.04)和C(P=0.03)显著低于龙陵黄山羊.云岭黑山羊背最长肌的剪切力显著低于龙陵黄山羊(P=0.05).云岭黑山羊背最长肌粗脂肪含量(P=0.04)和香味评分(P=0.03)显著大于龙陵黄山羊.以上结果显示,云岭黑山羊与龙陵黄山羊相比,具有较高粗脂肪含量和较优的风味,但肉色偏浅.
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