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智利地中海温带气候区牧区肉牛生产系统的变化趋势与驱动因素

Trends and Drivers of Change of Pastoral Beef Production Systems in a Mediterranean-Temperate Climate Zone of Chile.

作者信息

Toro-Mujica Paula, Vera Raúl, Vargas-Bello-Pérez Einar, Pinedo Pablo, Bas Fernando

机构信息

Instituto de Ciencias Agronómicas y Veterinarias, Universidad de O'Higgins, San Fernando 3070000, Chile.

Departamento de Ciencias Animales, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Casilla-306 Santiago, Chile.

出版信息

Animals (Basel). 2019 Dec 12;9(12):1135. doi: 10.3390/ani9121135.

Abstract

The present study used surveys of the cattle sector over the period of 2009-2015 to develop a typology of cattle farms to evaluate their evolution over time and to identify variables that may be associated with systems' adaptive changes and continuance. Four groups of farms were defined using multivariate analyses as follows: Group I are small calf-cow operations using non-specialized beef breeds; Group II is similar to Group I but employs specialized beef breeds; Group III is dedicated to finishing cattle, and Group IV are larger farms (>1000 animals) with a complete cycle of breeding and fattening. In general, beef cattle production in the temperate-Mediterranean Southern Zone of Chile is declining in response to the opening up of the economy that allows for ample imports, the high opportunity cost of land, and recurrent droughts associated with climate change. Current policies and regulations have modified farms' businesses models depending on their ease of access to markets, farm size and financial capacity. The defined groups require different development paths and strategies. Sustainable intensification is an alternative strategy for farms in Group I and II, particularly if they were to contract the finishing stage of their cattle with Group III farms. In contrast, it is suggested that Group IV farms concentrate on pastoral production using low external inputs to enhance the production of "natural" beef for high-value niche markets, with positive externalities.

摘要

本研究利用2009 - 2015年期间对养牛业的调查,构建了一个养牛场类型学,以评估其随时间的演变,并确定可能与养殖系统适应性变化和持续性相关的变量。通过多变量分析定义了四组农场,具体如下:第一组是使用非专门肉牛品种的小型犊牛 - 母牛养殖场;第二组与第一组类似,但使用专门的肉牛品种;第三组致力于肉牛育肥,第四组是拥有完整繁殖和育肥周期的大型农场(>1000头牲畜)。总体而言,智利温带 - 地中海南部地区的肉牛生产因经济开放导致大量进口、土地机会成本高以及与气候变化相关的反复干旱而下降。当前的政策和法规根据农场进入市场的难易程度、农场规模和财务能力改变了其商业模式。所定义的几组农场需要不同的发展路径和战略。可持续集约化是第一组和第二组农场的一种替代战略,特别是如果它们将肉牛育肥阶段外包给第三组农场的话。相比之下,建议第四组农场专注于使用低外部投入的牧业生产,以提高面向高价值小众市场的“天然”牛肉产量,并产生积极的外部效应。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a3c/6941165/46f65fff7bb8/animals-09-01135-g0A1.jpg

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