Getachew T, Haile A, Tessema T, Dea D, Edea Z, Rischkowsky B
International Centre for Agricultural Research in the Dry Areas (ICARDA) c/o ILRI, P.O.Box 5689,, Addis Ababa, Ethiopia.
Yabelo Agricultural Research Center, Yabelo, Ethiopia.
Trop Anim Health Prod. 2020 Jul;52(4):2145-2155. doi: 10.1007/s11250-020-02243-4. Epub 2020 Feb 26.
A structured questionnaire, own-flock ranking experiment, and group discussions were undertaken to assess goat breeding practices and to identify traits of interest for genetic improvement of indigenous goats. Four pastoral villages in Ethiopia, namely, Jarso, Mesoya, Eleweya, and Dharito were selected based on their goat production potential, accessibility, and suitability to implement community-based breeding programs. A survey and flock ranking experiment involving 70 households and 199 goats were used. In flock ranking experiment, goat owners were asked to choose the first three superior and the worst doe within their own flock. They were also asked to provide their reason for ranking the animals. In addition, data on size traits, kid growth, kid survival, reproduction traits, and milk yield were recorded for each doe. Data obtained from questionnaire, flock ranking, and measurements were subjected to both qualitative and quantitative analysis. Large variation was observed between top and last ranked does in most of the traits and price, for example, in body weight (33.6 ± 0.88 vs. 25.2 ± 0.93 kg), doe's kid survival (92.1 ± 4.01 vs. 59.6 ± 4.48%) and doe's price (1367 ± 46.5 vs. 833 ± 46.9 (US$1 = 28.4 Ethiopian Birr) Ethiopian Birr). Mobility is practiced with a defined and known pattern; therefore, recruitment of mobile enumerators for data recording would assist in implementation of breeding programs. Breeding objective should emphasize mothering ability (kid growth and survival), milk yield of does, and coat color in all areas. Due to its good correlation with other traits like kid growth and pre-weaning kid survival, considering milk yield alone as selection criteria or giving more weight for milk yield in the breeding program could generate better genetic benefit. Setting-up breeding program should be based on full participation and context of pastoralists.
开展了结构化问卷调查、自有畜群排名试验和小组讨论,以评估山羊养殖实践,并确定本地山羊遗传改良的目标性状。根据山羊生产潜力、可达性以及实施社区育种计划的适宜性,在埃塞俄比亚选择了四个牧区村庄,即贾尔索、梅索亚、埃莱韦亚和达里托。采用了一项涉及70户家庭和199只山羊的调查及畜群排名试验。在畜群排名试验中,要求山羊养殖户从自己的畜群中选出前三只最优良的母羊和最差的母羊,并要求他们说明对这些羊进行排名的理由。此外,还记录了每只母羊的体型性状、羔羊生长情况、羔羊成活率、繁殖性状和产奶量数据。从问卷调查、畜群排名和测量中获得的数据进行了定性和定量分析。在大多数性状和价格方面,观察到排名靠前和靠后的母羊之间存在很大差异,例如体重(33.6±0.88千克对25.2±0.93千克)、母羊的羔羊成活率(92.1±4.01%对59.6±4.48%)以及母羊价格(1367±46.5埃塞俄比亚比尔对833±46.9埃塞俄比亚比尔(1美元=28.4埃塞俄比亚比尔))。迁移遵循明确且已知的模式;因此,招募流动调查员进行数据记录将有助于育种计划的实施。育种目标应在所有地区强调母性能力(羔羊生长和存活)、母羊产奶量以及毛色。由于其与羔羊生长和断奶前羔羊存活等其他性状具有良好的相关性,仅将产奶量作为选择标准或在育种计划中给予产奶量更大权重可能会产生更好的遗传效益。建立育种计划应基于牧民的充分参与和实际情况。