Department of Animal Science, Mizan - Tepi University, Mizan Aman, Ethiopia.
Vet Med Sci. 2024 May;10(3):e1415. doi: 10.1002/vms3.1415.
Feed is a major input in the livestock industry and covers about 60%-70% of the total cost of producing meat, milk and eggs. Inadequate feed supply in terms of quality and quantity leads to lower production performance in livestock. However, the development of an appropriate livestock production strategy through efficient utilization of existing feed resources could raise the production and per capita consumption of livestock products. Efficiency of feed resource utilization can be measured as the ratio between input to production activities and output (e.g. kg of protein used per unit of meat, milk and eggs produced or hectare of land used per unit of milk produced).
This study was designed with the objective of evaluating the livestock population and national feed security to enhance livestock productivity in Ethiopia. To achieve this objective, data were collected from the websites of the Ethiopian Central Statistical Agency from 2007 to 2021, FAO publications and websites, books and journals. The data obtained on different feed resources, livestock population and livestock feed requirement and balance were entered into an MS Excel spread sheet (Excel, 2010) and analysed using the general linear model (PRO GLM) procedure of SAS (2014) and multivariate analysis of covariance.
The study results revealed that the livestock population had increased from 58.31 million tropical livestock units (TLU) to 81.10 million tropical livestock units (TLU), and the emission of entericCH4 had increased from 2511.08 Gg/year to 3661.74 Gg/year from 2008 to 2021. The study results also showed that the major available feed resources for ruminants are natural pasture and crop residues, which account for 56.83% (87.56 × 10 ) and 37.37% (57.57 × 10 ) of total feed production in the country, respectively. The contribution of concentrate and improved cultivated pasture and feed from permanent crops used as feed sources is very insignificant (3.05% and 1.96%, respectively). The estimated quantity of these feed resources was sufficient to meet the livestock feed requirement in the country in terms of dry matter (DM), digestible crude protein (DCP) and MEJ, which estimated about 153.31 × 10 t, 4.56 × 10 t and 1203.97 × 10 MJ DM, DCP and MEJ, respectively. The estimated livestock feed requirements were 134.62 × 10 , 4.52 × 10 , and 918.83 × 10 in DM, DCP and MEJ, respectively. The supply covered about 114.33, 100.04 and 131.33% of the DM, DCP and MEJ total annual feed requirements of livestock in the country. Hence, the current feed surplus obtained on feed requirements of ruminants and equines can support the nutrient requirements of 500 × 10 broilers, about 5 × 10 bulls, about 50 × 10 small ruminants or 3 × 10 crossbred lactating dairy cows, yielding 10 L of milk per day.
The findings of study indicated that natural pasture and crop residues cover a major proportion of the annual feed supply in the country. Therefore, proper grazing management, feed conservation practices, improving grazing land vegetation through clearing invasive species, replacing the grazing land with an improved grass and legume mixture, effective collection, conservation and proper utilization of crop residues, and other alternative options such as the use of chemical, physical and biological treatments to improve the nutritive value of fibrous feed should be practiced. More effective extension services and farmer training are also required to increase feed productivity and, hence, human development.
饲料是畜牧业的主要投入物,占肉类、牛奶和鸡蛋生产总成本的 60%-70%。饲料在质量和数量方面供应不足会导致牲畜生产性能下降。然而,通过高效利用现有饲料资源,制定适当的畜牧业生产战略,可以提高畜牧业生产和人均畜产品消费。饲料资源利用效率可以用投入生产活动的饲料与产出(例如,每单位肉、奶和蛋生产所用的蛋白质千克数或每单位牛奶生产所用的土地公顷数)的比率来衡量。
本研究旨在评估埃塞俄比亚的牲畜数量和国家饲料安全,以提高畜牧业生产力。为了实现这一目标,从 2007 年至 2021 年,从埃塞俄比亚中央统计局的网站、粮农组织的出版物和网站、书籍和期刊中收集了数据。将不同饲料资源、牲畜数量和牲畜饲料需求和平衡的数据输入到 MS Excel 电子表格(Excel,2010)中,并使用 SAS(2014)的一般线性模型(PRO GLM)程序和多元协方差分析进行分析。
研究结果表明,牲畜数量从 5831 万热带牲畜单位(TLU)增加到 8110 万热带牲畜单位(TLU),从 2008 年到 2021 年,反刍动物的肠道 CH4 排放量从 2511.08 克/年增加到 3661.74 克/年。研究结果还表明,反刍动物的主要可用饲料资源是天然牧场和农作物秸秆,分别占该国饲料总产量的 56.83%(87.56×10 )和 37.37%(57.57×10 )。浓缩饲料和改良人工牧场以及永久性作物用作饲料来源的贡献非常小(分别为 3.05%和 1.96%)。这些饲料资源的估计数量足以满足该国牲畜对干物质(DM)、可消化粗蛋白(DCP)和 MEJ 的饲料需求,估计约为 153.31×10 、4.56×10 和 1203.97×10 DM、DCP 和 MEJ。估计的牲畜饲料需求量分别为 134.62×10 、4.52×10 和 918.83×10 DM、DCP 和 MEJ。在 DM、DCP 和 MEJ 方面,供应分别约占该国牲畜饲料需求的 114.33%、100.04%和 131.33%。因此,目前反刍动物和马的饲料需求所获得的饲料剩余量可以满足 500×10 只肉鸡、约 5×10 头公牛、约 50×10 只小反刍动物或 3×10 头杂交泌乳奶牛的营养需求,每天可产 10 升牛奶。
研究结果表明,天然牧场和农作物秸秆占该国年度饲料供应的主要比例。因此,应采取适当的放牧管理、饲料保存措施、通过清除入侵物种改善放牧地植被、用改良的草和豆科混合饲料替代放牧地、有效收集、保存和合理利用农作物秸秆,以及使用化学、物理和生物处理等其他替代方法来提高纤维饲料的营养价值等措施。还需要更有效的推广服务和农民培训,以提高饲料生产力,从而促进人类发展。