巴西半干旱区绵羊生产系统的分型、特征和分化

Robson Mateus Freitas Silveira, Angela Maria de Vasconcelos, V. J. da Silva, Wilder Hernando Ortiz Vega, P. Toro-Mujica, J. Ferreira
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引用次数: 15

摘要

畜牧生产系统的复杂性意味着物理、技术、社会、环境和动物因素的相互关系。本研究旨在(i)对具有代表性的羊场类型进行分类和表征,(ii)指出造成巴西半干旱区羊场类型差异的主要因素。对65名牧羊农户进行了问卷调查,问卷包含29个变量,涉及社会、体力、牲畜、技术、牧群管理和生产指标。使用多种多变量分析技术对农场类型进行分类、表征和区分。确定了3种绵羊生产系统:新兴(16个农场):青壮年农民、中等农场和牧群、集约化管理、中等技术水平和高肉品产量;常规(40个农场):成年农场主、小农、小畜群、技术水平低、肉制品产量低;传统养殖场(09场):养殖户成熟,养殖场和畜群规模大,经营粗放,技术水平低,肉品产量高。社会因素、自然因素、牲畜因素、畜群管理因素、技术因素和生产因素对类型学的区分力显著(P < 0.05)。以家庭为基础的生产系统仍然是主要的绵羊生产系统。巴西半干旱地区的绵羊养殖具有粗放型、严重依赖自然资源、易受季节变化影响的特点。所研究的养殖场的一些共同特征是使用家庭劳动力和以低放养密度粗放型养殖为主。这个新兴的系统正在扩大,可能代表着养羊场的未来。认为未来传统制度可以加强管理,向新兴制度迁移。建议制定直接的公共政策,鼓励羊养殖业工人的有效继承、技术的采用和专门知识专业人员的培训。年轻农民的加入被认为是决定巴西半干旱地区绵羊生产系统未来的一个因素。
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Typification, characterization, and differentiation of sheep production systems in the Brazilian semiarid region
ABSTRACT The complexity of livestock production systems implies the interrelation of physical, technical, social, environmental, and animal factors. This study aimed (i) to classify and characterize farms in representative typologies and (ii) to point out the main factors responsible for the differences between the sheep farm typologies in Brazilian semiarid region. A structured questionnaire with 29 variables related to social, physical, livestock, technological, herd management, and productive indicators was applied to 65 sheep farmers. The farms typology was classified, characterized, and differentiated using several techniques of multivariate analysis. Three sheep production systems were identified: Emerging (16 farms): young adults farmers, medium farms and herds, intensive management, intermediate technological level, and high meat production; Conventional (40 farms): adult farmers, smallholder farms, small herds, low technological level, and low meat production; and traditional (09 farms): mature farmers, large farms and herds, extensive management, low technological level, and high meat production. Social, physical, livestock, herd management, technological, and productive factors showed discriminatory power (P < 0.05) to differentiate typologies. The family-based productive system still represents the primary sheep production system. Sheep farming in the Brazilian semiarid region is characterized as extensive, heavily dependent on natural resources, and susceptible to seasonal variations. Some common characteristics among the farms studied were the use of family labour and the predominance of extensive breeding with low stocking density. The emerging system is expanding and may represent the future of sheep farms. It is believed that the traditional system can intensify its management and migrate to the emerging system in the future. It is recommended to direct public policies that encourage the efficient succession of workers in sheep farming, adoption of technologies, and training of know-how professionals. The insertion of young farmers was considered a determining factor in the future of the sheep production system in the Brazilian semiarid region.
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