Answer:
If poultry birds are large in size, it will becomes very
difficult to manage their summer adaptability with them.
The programmers? of cross breeding between Indian
(indigenous) and foreign (exotic) breeds for variety improvement are focused to
develop new varieties for the desirable traits some of them are
(i) Quantity and quality of chicks
(ii) Dwarf broiler parent for commercial chick production for
summer adaptation capacity/tolerance to high temperature
(iii) Low maintenance requirement
(iv) Improvement in hen housed for egg production and
reduction in the size of the layer with ability to utilise more fibrous, cheap
diet formulations using agricultural byproducts.
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