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首页> 外文会议>Conference of the New Zealand Society of Animal Production >Marbling produced in yearling heifers of Angus origin finished over a medium-term period on a high energy pasture
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Marbling produced in yearling heifers of Angus origin finished over a medium-term period on a high energy pasture

机译：在Angus Origin的一岁毕业小母牛中生产的大理石在高能量牧场的中期期间完成

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摘要

This study provides baseline information on the level of marbling that can be produced from yearling heifers of Angus origin when finished over a medium-term, 169 day, period on a high energy pasture. Two groups of heifers were tested, which included30 Angus x Jersey heifers and 26 straight-bred and cross-bred (mainly Hereford x and Friesian x) Angus heifers. The daily live weight gain of the heifers during finishing averaged 788 g/d and did not differ between the two groups of heifers studied (P >0.05). At slaughter, the carcass weights of the Angus x Jersey heifers were lighter than the group of straight-bred and cross-bred Angus heifers (P <0.05). Nevertheless, both groups produced average striploin marbling scores of 2 on the Japanese Meat Grading Association 12 point scale (P >0.05), with 39% of the cattle achieving scores >2. The high level of variability in marbling across both groups of heifers indicated that the average level of marbling achieved could be further improved by using some predictor of marbling performance to select animals to be finished in the pasture-based system. All of the heifers produced very tender beef with average shear force values <5 kg F.
机译：本研究提供了关于在高能量牧场的中期，169天，在高能量牧场的中期时间内完成的大杂散大学队伍的大型大海母牛水平的基线信息。测试了两组小母牛，其中包括30个Angus X泽西州的小母牛和26次直接繁殖和交叉繁殖（主要是赫里福德X和Friesian X）Angus Heifers。完成在整理过程中的每日实时体重增加率平均为788克/天，并且两组小组之间没有差异（P> 0.05）。在屠宰时，Angus X泽西母牛的胴体重量比直接繁殖和交叉的安斯大虾母牛群更轻（P <0.05）。尽管如此，两组两组在日本肉类分级协会12点比例（P> 0.05）中产生了平均脱蛋白大理石植物分数，其中39％的牛数达到了分数> 2。两组小母牛的大理石机上的高水平变化表明，通过使用一些预测的大理石性能的预测来选择在基于牧场的系统中完成的动物来进一步改善所达到的平均大理石水平。所有的小母牛都生产出非常温柔的牛肉，平均剪切力值<5千克F.

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