What are the desirable traits for which improved varieties developed by cross-breeding programmes between indigenous and exotic breeds? What are the advantages of exotic breeds?

Dear student.

An indigenous breed like  Aseel  is crossed with an exotic breed like the  Leghorn  to produce an improved hybrid variety with the desired traits. 

Some desirable traits of hybrid poultry are as follows:

  • Good quality and large size of eggs

  • Low maintenance requirement

  • High resistance to diseases

  • Tolerance to high temperature

  • Good quality and quantity of chicks

  • Ability to utilize cheaper diets produced from agricultural wastes 
     


Exotic breeds have several advantages such as high yield of milk, long lactation period, good quality and quantity of milk.

Regards.

 

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Cross breeding (hybridisation) helps to develop improved poultry breeds.
The cross-breeding programmes between Indian (indigenous, for example, Aseel) and foreign (exotic, for example, Leghorn) breeds is done for the following desirable traits— 
(i) number and quality of chicks; 
(ii) summer adaptation capacity/tolerance to high temperature; 
(iii) low maintenance requirements.
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