Sheriff Oumer, Alemayehu Kefyalew, Haile Aynalem
Department of Animal Production and Technology, Bahir Dar University, PO Box 79, Bahir Dar, Ethiopia.
Department of Animal Science, Assosa University, Assosa, Ethiopia.
Trop Anim Health Prod. 2020 May;52(3):1467-1478. doi: 10.1007/s11250-019-02150-3. Epub 2019 Dec 5.
We conducted a household survey in the semi-arid and sub-humid parts of Benishangul Gumuz region in northwestern Ethiopia to better understand and describe production systems and breeding practices of Arab and Oromo goat keepers. Multistage random sampling was employed to select peasant associations, while probability proportional to size sampling was used to select households. Data were collected from 249 households, out of which 86 were Arab and 163 were Oromo goat keepers that live in semi-arid and sub-humid agroecologies, respectively. Personal observations, focus group discussions, and structured questionnaires were used to collect data. Data were analyzed using SPSS and results were presented using descriptive statistics and indices. Ninety-two percent of Arab and 86% of Oromo goat keepers indicated crop and livestock production as their main occupation. Goats were kept for a variety of purposes. Income generation, meat, and savings were the highest priorities. The average flock size owned by Arab goat keepers (12.5 ± 4.0) was significantly (p < 0.01) higher than that of Oromo goat keepers (9.9 ± 3.8). Breeding does constituted the largest average flock size followed by kids, young does, and young bucks. Body size, twining ability, coat color, and kid growth were considered important in selecting breeding does, while body size, growth rate, coat color, and libido were the most preferred traits for buck selection. Mating was predominantly uncontrolled mainly due to communal grazing lands. Castration of bucks was significantly (p < 0.01) more frequent in Arab goat keepers than in Oromo goat keepers. Arab goats have better reproductive performance than Oromo goats. On average, female goats in the study areas gave first births at the age of 1.2 years, kidded every 7.5 months, stayed on reproduction for about 7.6 years, and produced 10.7 kids per lifetime. Compared with Arab goats, Oromo goats had significantly (p < 0.01) higher average age at first mating, age at first kidding, kidding interval, and reproductive lifetime but produced lower average number of kids per lifetime. Nucleus breeding schemes are recommended to optimize the limited available resources in the study areas. A single nucleus could serve both Arab and Oromo goat keepers. In conclusion, breeding programs implemented in the study areas should consider the production systems and breeding practices of Arab and Oromo goat keepers appropriately.
我们在埃塞俄比亚西北部的贝尼尚古尔-古穆兹地区的半干旱和亚湿润地区开展了一项家庭调查,以更好地了解和描述阿拉伯山羊和奥罗莫山羊养殖户的生产系统及养殖实践。采用多阶段随机抽样来选择农民协会,同时使用规模比例概率抽样来选择家庭。从249户家庭收集了数据,其中86户是阿拉伯山羊养殖户,163户是奥罗莫山羊养殖户,他们分别生活在半干旱和亚湿润农业生态区。通过个人观察、焦点小组讨论和结构化问卷来收集数据。使用SPSS对数据进行分析,并使用描述性统计和指标来呈现结果。92%的阿拉伯山羊养殖户和86%的奥罗莫山羊养殖户表示作物和牲畜生产是他们的主要职业。养殖山羊有多种目的。创收、肉类和储蓄是最优先考虑的。阿拉伯山羊养殖户拥有的平均羊群规模(12.5±4.0)显著高于(p<0.01)奥罗莫山羊养殖户(9.9±3.8)。繁殖母羊的平均羊群规模最大,其次是羔羊、青年母羊和青年公羊。在选择繁殖母羊时,体型、产双羔能力(产双羔能力)、毛色和羔羊生长被认为很重要,而在选择公羊时,体型、生长速度、毛色和性欲是最受青睐的性状。交配主要是无控制的,主要原因是公共放牧地。阿拉伯山羊养殖户对公羊去势的频率显著高于(p<0.01)奥罗莫山羊养殖户。阿拉伯山羊的繁殖性能优于奥罗莫山羊。研究区域的母羊平均在1.2岁时首次产羔,每7.5个月产羔一次,繁殖约7.6年,一生产10.7只羔羊。与阿拉伯山羊相比,奥罗莫山羊的首次配种平均年龄、首次产羔年龄、产羔间隔和繁殖寿命显著更高(p<0.01),但一生平均产羔数量更低。建议采用核心育种计划来优化研究区域有限的可用资源。一个单一的核心可以为阿拉伯山羊和奥罗莫山羊养殖户服务。总之,在研究区域实施的育种计划应适当考虑阿拉伯山羊和奥罗莫山羊养殖户的生产系统及养殖实践。