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Sustainable intensification of indigenous village chicken production system: matching the genotype with the environment
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Sustainable intensification of indigenous village chicken production system: matching the genotype with the environment
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Sustainable intensification of indigenous village chicken production system: matching the genotype with the environment
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Journal Article
Sustainable intensification of indigenous village chicken production system: matching the genotype with the environment
2021
Overview
The multi-purpose indigenous village chickens (IVCs) are kept in low- and middle-income countries. IVCs are hardy and are resilient to disease, hostile environment, global warming, and climate change. The IVCs are a little impacted by anthropogenic effects; consequently, they possess high genetic and phenotypic diversity. Likewise, the genetic structure of IVCs is principally shaped by natural selection, which enables them to accumulate high genetic polymorphism and to adaptively radiate. Regardless of this, the genetic wealth of IVCs has been eroded by indiscriminate crossbreeding. Emerging infectious and non-infectious diseases, flawed assumptions, predation, inadequate nutrition, poorly maintained night enclosures, and underdeveloped market infrastructure, and the overlooked multiple-use values and unique attributes of IVCs have threatened their mere survival. The IVCs lay a few eggs and produce less meat, which cannot meet the growing (existing) demand. However, the demand for IVC products is growing attributable to the flavor and texture of eggs and meat, and they are well-aligned with the subsistence farming system. The several use values and ecosystem services provided by IVCs have been increasingly realized. Enhanced production can be attained through sustainable use of local (genetic) resources and by scaling up and out best practices. Genetic improvement needs to mainly rely upon IVC genetic resources and should have to match the genotype with the environment. Moreover, it has to maintain the genetic polymorphism that has been accumulated for time immemorial to respond to unanticipated changes in the production system and consumers’ demand. In this review, enhanced management, selection strategies, and genetic crosses including the crossing of commercial chickens with red junglefowl have been proposed to sustainably intensify the IVC production system.
