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首页> 外文期刊>Tropical Animal Health and Production >Carcass quality and meat tenderness of Hawaii pasture-finished cattle and Hawaii-originated, mainland feedlot-finished cattle
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Carcass quality and meat tenderness of Hawaii pasture-finished cattle and Hawaii-originated, mainland feedlot-finished cattle

机译：夏威夷牧场牛和夏威夷产内地肥育牛的体质量和肉嫩度

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The objective of this study was to compare the carcass quality and meat tenderness of Hawaii cattle finished on subtropical pasture with those of mainland US feedlot-finished cattle that were shipped from Hawaii after weaning. Rib-eye steak samples were collected from 30 feedlot-finished cattle harvested at a slaughter house in Washington State, USA and from 13 subtropical pasture-finished cattle harvested at a local slaughter house in Hawaii, then shipped to meat science laboratory at the University of Hawaii, Manoa. Samples were aged for 2 weeks at 4°C and frozen for later proximate analysis and meat tenderness measurement. Feedlot-finished cattle had significantly heavier carcass weight (353 vs 290 kg) and thicker backfat (13.5 vs 6.6 mm), but no significant difference was observed in rib-eye area between the two groups. Marbling score (Small) and United States Department of Agriculture quality grade (Choice) of the pasture-finished beef were not significantly (P < 0.05) different from those of feedlot-finished beef. The shear force value of pasture-finished beef (5.18 kg) was not statistically different (P < 0.05) from that of feedlot-finished beef (4.40 kg). In conclusion, results of this study suggest that Hawaii cattle finished on subtropical pasture produced as tender beef as mainland feedlot-finished cattle with less intramuscular fat.
机译：这项研究的目的是比较在亚热带牧场上饲养的夏威夷牛的quality体质量和肉嫩度与断奶后从夏威夷运出的美国本土饲养场完成的牛的those体质量和肉的嫩度。肋眼牛排样品是从在美国华盛顿州的一个屠宰场收获的30头肥育场肥牛和在夏威夷的当地一个屠宰场收获的13种亚热带牧场加工的牛中采集的，然后运到美国大学的肉类科学实验室夏威夷，马诺阿。将样品在4°C下陈化2周，然后冷冻以供以后的近距离分析和肉嫩度测量。肥育场肥育的牛的weight体重量显着较重（353 vs 290 kg）和后脂肪较厚（13.5 vs 6.6 mm），但两组之间的肋眼面积没有显着差异。牧场肥育牛肉的大理石花纹得分（小）和美国农业部质量等级（选择）与肥育牛场牛肉没有显着差异（P <0.05）。牧场牛肉（5.18千克）的剪切力值与肥育场牛肉（4.40千克）的剪切力没有统计学差异（P <0.05）。总之，这项研究的结果表明，夏威夷人的牛在亚热带牧场上作为嫩牛肉生产，就像​​大陆肉场肥育的牛，肌肉内脂肪较少。

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