阿根廷布兰格斯牛特征的经济价值

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS
Nicolas Gatti, Victor Funes, Ignacio Benito Amaro
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引用次数: 0

摘要

从 2000 年代初开始,对农产品的需求急剧增加,潘帕斯草原上最富饶的地区的养牛业被挤出了市场。安格斯牛、赫里福德牛与布拉赫曼牛的杂交品种,即 Brangus 和 Braford,已在阿根廷各地成功采用。然而,人们对推动潘帕斯草原以外地区牛遗传选育需求的特定公牛性状知之甚少。获得性状的经济价值将有助于确定在保持安格斯牛和赫里福德牛肉质的同时使畜牧生产适应不同生态系统的需求。我们利用科尔多瓦省北部两个养牛场的布兰格斯公牛销售数据,对享乐主义价格模型进行了估算。我们发现,养牛场主更喜欢观察到的性状,如体重、毛色和年龄,而遗传指标,如预期后代差异(EPDs)则次之。我们认为,相对于黑毛公牛,牧民更偏好红毛公牛,这可能与减少热应激的需求有关。此外,EPDs 与价格之间相对较弱的关联可能与牧场主的特征等不可观测变量有关,而且遗传学的价值隐含在种公牛的声誉中。[EconLit Citations: Q12, Q13, Q16]。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Economic value of Brangus cattle traits in Argentina
Starting in the early 2000s, a boom in demand for agricultural commodities displaced cattle ranching out of the most productive areas of the Pampas' prairie. The crossbreeds between Angus and Hereford with Brahman, that is, Brangus and Braford, have been successfully adopted across Argentina. However, little is known about the specific bulls' traits that drive the demand for genetic selection of cattle outside the Pampas. Obtaining the economic value of traits would help to identify the demand for adapting livestock production to different ecosystems while preserving the meat quality of Angus and Hereford cattle. We estimated hedonic price models using Brangus bull sales data from two cattle breeding ranches in the north of Cordoba province. We find that cattle ranchers prefer observed traits such as weight, coat color, and age, while genetic indicators such as Expected Progeny Differences (EPDs) have secondary importance. We argue that stronger preferences for red‐coated bulls, as opposed to black‐coated bulls, could be associated with the demand for reducing heat stress. In addition, the relatively weak association between EPDs and prices may be related to unobservable variables such as ranchers' characteristics, and that the value of genetics is implicit in the studs' reputation. [EconLit Citations: Q12, Q13, Q16].
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来源期刊
ACS Applied Bio Materials
ACS Applied Bio Materials Chemistry-Chemistry (all)
CiteScore
9.40
自引率
2.10%
发文量
464
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