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埃塞俄比亚南部高地小农户混合农业中小农户奶牛养殖系统的典型化和差异化。

Typification and differentiation of smallholder dairy production systems in smallholder mixed farming in the highlands of southern Ethiopia.

机构信息

Hawassa Agricultural Research Center, Hawassa, Ethiopia.

Haramaya University, Diredawa, Ethiopia.

出版信息

PLoS One. 2024 Aug 29;19(8):e0307685. doi: 10.1371/journal.pone.0307685. eCollection 2024.

Abstract

The present study aimed to classify smallholder dairy production systems by analyzing land allocation for various crop types and characterizing them based on integration with specific crops which is gap in earlier studies. A total of 360 smallholder farmers were interviewed to generate firsthand information in addition to using secondary data sources. The classification utilized K-means clustering, while discriminant analysis was applied to accentuate the distinct characteristics of dairy production systems (DPSs). Subsequently, for a particular crop to be considered dominant, the minimum farmland allocation had to exceed 30%. Based on this, the 360 respondent farmers in the study areas were categorized into four distinct DPSs: diversified crop-based (DCB) at 31%, enset-based (EB) at 28%, cereal-based (CB) at 24% and cash crop-based (CCB) with coffee, khat, vegetables, fruits, and sugarcane accounting for 17%. Within the CCB dairy production system, where cash crops were cultivated most dominantly, averaging 56% of the farmland, farmers reported the highest annual income and, consequently, acquired more improved dairy cows, facilitating their entry into intensive dairy production. Ownership of improved dairy cattle breeds, use of agro-industrial byproducts as feed, practicing stall feeding and better housing are observed practices in this DPS that relate to the intensification of dairy production. This positive relationship was observed between the commercialization of crops and the intensification of dairy production in the CCB dairy production system. In the EB dairy system, enset dominates with a 33% area share, leading to increased residues for cattle feed. They keep large herds of local cattle, limited crossbreeding experience, and prefer conventional feeding. The CB system allocates 47% of land to cereals, justifying cereal residues as primary dairy feed. Cultivating grasses like Pennisetum pedicellatum and Phalaris arundinacea is also highly valued in the system. The DCB system, with diverse crops (none exceeding 30%), implies varied residues for dairy feed. These findings reveal unique characteristics across dairy systems, indicating a positive correlation between crop commercialization and dairy intensification. Hence, understanding each type of DPS and its characteristics will help development experts or those in charge of designing agricultural policy to establish the best strategic plans for enhancing the productivity of dairy cattle under smallholder conditions.

摘要

本研究旨在通过分析不同作物类型的土地分配来对小农户奶牛养殖系统进行分类,并根据与特定作物的整合情况对其进行特征描述,这是早期研究中的一个空白。研究共采访了 360 名小农户,以获取第一手信息,并利用二手数据源。该分类采用了 K-均值聚类,同时应用判别分析来突出奶牛养殖系统(DPS)的显著特征。随后,为了确定某种作物为主导作物,其最小农田分配面积必须超过 30%。基于此,研究区域内的 360 名受访者农民被分为四个不同的 DPS:多元化作物型(DCB)占 31%、蕉芋型(EB)占 28%、谷物型(CB)占 24%和以咖啡、恰特草、蔬菜、水果和甘蔗为主的经济作物型(CCB)占 17%。在以经济作物为主导的 CCB 奶牛养殖系统中,农民报告说,他们的农田中平均有 56%用于种植经济作物,这是最主要的,他们的年收入最高,因此获得了更多改良的奶牛,这使他们能够进入集约化奶牛养殖。在这个 DPS 中,观察到了一些与奶牛养殖集约化相关的实践,例如拥有改良奶牛品种、使用农业工业副产品作为饲料、实行厩饲和改善住房条件。在 CCB 奶牛养殖系统中,作物的商业化与奶牛养殖的集约化之间存在着积极的关系。在 EB 奶牛系统中,蕉芋占 33%的面积份额,导致奶牛饲料的剩余量增加。他们饲养大量的本地牛,杂交经验有限,喜欢传统的饲养方式。CB 系统将 47%的土地用于种植谷物,这使得谷物残渣成为主要的奶牛饲料。在系统中,还高度重视种植象草(Pennisetum pedicellatum)和高梁(Phalaris arundinacea)等牧草。DCB 系统种植多种作物(没有一种作物超过 30%),这意味着奶牛饲料的剩余物种类繁多。这些发现揭示了不同奶牛养殖系统的独特特征,表明作物商业化与奶牛养殖集约化之间存在正相关关系。因此,了解每种 DPS 的特点将有助于发展专家或负责制定农业政策的人员制定最佳战略计划,以提高小农户条件下奶牛的生产力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d70a/11361680/a33dd7135c30/pone.0307685.g001.jpg

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