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本文引用的文献

1
A retrospective analysis of bull:cow ratio effects on pregnancy rates of beef cows previously enrolled in fixed-time artificial insemination protocols.对先前参与定时人工授精方案的肉牛母牛受孕率的公牛与母牛比例影响的回顾性分析。
Transl Anim Sci. 2021 Aug 7;5(3):txab129. doi: 10.1093/tas/txab129. eCollection 2021 Jul.

赞比亚牛群生产系统和管理实践的特征描述。

Characterization of production systems and management practices of the cattle population in Zambia.

机构信息

Zambia Academy of Sciences, C/O NISIR, P. O. Box 310158, 10101, Lusaka, Zambia.

出版信息

Trop Anim Health Prod. 2022 Jun 21;54(4):216. doi: 10.1007/s11250-022-03213-8.

DOI:10.1007/s11250-022-03213-8
PMID:35726076
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9208833/
Abstract

This study was an attempt at the analysis of the Zambia cattle population, its production systems and management practices using data collected during the 2017/2018 livestock and aquaculture census. The Public User Microdata Sample dataset provided by the Central Statistics Organization were analyzed using both qualitative and quantitative methods. Traditional system and free range grazing were found to be the main production system and feeding practices (97.2%). Despite large expanse of arable land, crop and fodder production, there was poor integration with cattle production system thus predisposing the animal to poor productivity due to inadequate nutrition. The management practices were found to be limiting and a hindrance to improved performance. The study revealed diverse cattle genetic resources comprising of local and exotic breeds, and their crosses at different genetic proportions. The local breed crosses were mainly directed at exotic beef breeds (and evidence of crosses with exotic dairy breeds) as smallholder farmers tend to improve on the production performances and productivity. Disease prevalence was high and had been an impediment to the growth of the cattle industry. It was clear that cattle production development must be anchored on a value chain system approach. Efforts aimed at capacity building should be targeted at the smallholder farmers with the bulk (93.5%) of the cattle population. This should include impacting farmers with husbandry skills through provision of elaborate livestock extension services aimed at integrating crops and fodder production in feeding practices, communal grazing management and adequate access to veterinary services to control disease prevalence. Value addition and market development would be helpful in unlocking the potential of the beef meat and milk products industry.

摘要

本研究试图利用 2017/2018 年牲畜和水产养殖普查期间收集的数据,对赞比亚牛群、其生产系统和管理实践进行分析。中央统计局提供的公共用户微观数据样本数据集采用定性和定量方法进行了分析。传统系统和自由放牧被发现是主要的生产系统和饲养方式(97.2%)。尽管拥有大片耕地、作物和饲料生产,但与牛生产系统的整合程度较差,导致动物由于营养不足而生产力低下。管理实践被发现是有限制性的,阻碍了性能的提高。研究揭示了多样化的牛遗传资源,包括本地和外来品种,以及不同遗传比例的杂交品种。本地品种的杂交主要针对外来的肉牛品种(并存在与外来奶牛品种杂交的证据),因为小农倾向于提高生产性能和生产力。疾病流行率很高,一直是牛产业发展的障碍。显然,牛生产的发展必须以价值链系统方法为基础。旨在增强能力的努力应该针对拥有大部分(93.5%)牛群的小农。这应包括通过提供精心设计的牲畜推广服务,影响农民的畜牧业技能,旨在将作物和饲料生产纳入饲养实践、公共放牧管理和充分获得兽医服务以控制疾病流行率。增值和市场发展将有助于挖掘牛肉和奶制品行业的潜力。