Parsons Brianna E, Makore Joshuah, Motube Boisy, Rakobe Gregory Thato, Ramabu Solomon Stephen
School of Veterinary Medicine, University of Pennsylvania, Center for Stewardship Agriculture and Food Security, New Bolton Center, Kennett Square, PA, USA.
FAIR Farms Gambia, .
Trop Anim Health Prod. 2025 Mar 10;57(2):109. doi: 10.1007/s11250-025-04355-1.
African agriculture faces triple threats of climate change, population growth and inequality, necessitating sustainability research in agriculture that comprehensively examines social, economic, environmental, and socio-political trade-offs. To examine sustainable beef production in Botswana, this study used a mixed-method approach to explore Feedlot and Free-range cattle management systems. First, competing but overlapping factors of environmental, economic, and social sustainability in beef production were identified from literature review, and a conceptual framework for sustainability was used to assess the trade-offs inherent in both management systems. Second, abattoir post-mortem examinations were used to compare 25 feedlot cattle and 22 free-range cattle across standard factors including: carcass dress mass (CDM), carcass grade, fat colour, conformation, dentition, carcass and offal postmortem decisions, and reasons for the decisions. Lastly, sustainability trade-offs for feedlot and free-range cattle management were compared through a Strengths, Weaknesses, Opportunity, and Threats (SWOT) analysis. Sustainability assessment showed that feedlots rely on imported grains like corn and soybean, increasing producers' uncertainty as an increasingly turbulent world affects grains availability and pricing. Free-range pasture systems, on the other hand, rely on rainfed agriculture (and often communal lands), which are increasingly challenged by the intersections of climate change, overgrazing and issues of land access. Feedlot animals had a significantly higher CDM (p = 0.0001) at 237.56 kg ± 6.98 (Mean ± SEM) compared to 184.50 kg ± 7.44 for Free-range cattle and higher incidences of red offal condemnation rates (lung, liver, and spleen) (p < 0.05) compared to free-range cattle. Free-range cattle had higher green offal condemnation rates specifically large tripe (p = 0.026) compared to feedlot cattle. SWOT analysis confirmed the trade-offs in several factors including carcass weight, feed costs, and climate change impacts. The conceptual framework for sustainability, postmortem findings and SWOT analysis reveal cattle farming challenges and trade-offs that must be made to address disease burdens, animal nutrition, and productivity in Botswana.
非洲农业面临气候变化、人口增长和不平等这三大威胁,因此有必要开展农业可持续性研究,全面审视社会、经济、环境以及社会政治方面的权衡取舍。为了研究博茨瓦纳的牛肉可持续生产情况,本研究采用了混合研究方法,对饲养场和放牧式养牛管理系统进行探索。首先,通过文献综述确定牛肉生产中环境、经济和社会可持续性方面相互竞争但又相互重叠的因素,并使用一个可持续性概念框架来评估这两种管理系统中固有的权衡取舍。其次,利用屠宰场的尸检结果,对25头饲养场牛和22头放牧牛在包括胴体去脂质量(CDM)、胴体等级、脂肪颜色、形态、齿列、胴体和内脏的尸检判定以及判定理由等标准因素方面进行比较。最后,通过优势、劣势、机会和威胁(SWOT)分析,对饲养场和放牧式养牛管理的可持续性权衡进行比较。可持续性评估表明,饲养场依赖进口谷物,如玉米和大豆,随着世界局势日益动荡影响谷物供应和价格,这增加了生产者的不确定性。另一方面,放牧式牧场系统依赖雨养农业(且通常是公共土地),气候变化、过度放牧和土地获取问题的交织日益给其带来挑战。饲养场的牛胴体去脂质量显著更高(p = 0.0001),为237.56千克±6.98(平均值±标准误),而放牧牛为184.50千克±7.44,且与放牧牛相比,饲养场牛红色内脏(肺、肝和脾)的拒收率更高(p < 0.05)。与饲养场的牛相比,放牧牛绿色内脏(特别是大肚)的拒收率更高(p = 0.026)。SWOT分析证实了在胴体重量、饲料成本和气候变化影响等几个因素方面的权衡取舍。可持续性概念框架、尸检结果和SWOT分析揭示了博茨瓦纳在应对疾病负担、动物营养和生产力方面养牛业面临的挑战和必须做出的权衡。