首页|Do Crossbreeding using Exotic Breeds in Goat is the Right Solution for a Low-input Production System in Ethiopia?: A Review
Do Crossbreeding using Exotic Breeds in Goat is the Right Solution for a Low-input Production System in Ethiopia?: A Review
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NSTL
Analysis and evaluation of the previous genetic improvement attempts and their fruition are paramount to make the right decision in the future. Hence, this paper reviews the status of goat genetic improvement programs through quantitative evidence andelucidates how it can be implemented in the future through an intensive literature review. Goat genetic improvement through crossbreeding was initiated early in 1975. However, most crossbreeding programs have lacked analysis of the existing resources and infrastructure and also lack long-term strategies. As a result, crossbreeding program was discontinued without significant contribution due to incompatibility of the exotic genotype with low-input production systems. On the other hand, the moderate tohigh genetic variation within a population open the window for within-breed selection. Accordingly, a well-designed within-breed selection program was initiated late in 2013 for specified breeds. Currently, governmental and non-governmental institutionsplan to scale up community-based within-breed selection program. Besides, the efficiency of assisted reproductive technologies in goat genetic improvement was evaluated by ICARDA and reported a moderate achievement. However, the application of moleculartechnologies in Ethiopia is only limited to diversity studies. Nevertheless, there is an opportunity to use molecular technologies to enhance the genetic progress of a genetic improvement program. In conclusion, the expected benefits from crossbreeding program were not obtained and will not be obtained under the existing low input-production system. Therefore, a within-breed selection program would be an ideal option for the existing low-input production system if integrated with assisted reproductive and molecular technologies.
NSTL
