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  • 1.Differntiate between inbreeding and outbreeding. 2.List any three advantage and one important disadvantage of inbreeding practice in animal husbandry.

  1. Differntiate between inbreeding and outbreeding.
  2. List any three advantage and one important disadvantage of inbreeding practice in animal husbandry.

 

 

 

 
 
 
 
 

Answers (1)

(a) INBREEDING refers to the mating of more closely related individuals within the same seed breed for 4 - 6 generations.

                    Whereas

OUTBREEDING is the breeding of unrelated animals which may be between individuals of the same  breed but having no common ancestor for 4 - 6 generation (outcrossing) or between different breeds (cross-breeding) or different species (interspecific hybridization)

(b) Advantages of Inbreeding -

  • Inbreeding increases Homozygosity and helps in evolving a pure-line in any animal.
  • It helps in the accumulation of superior genes and elimination of less desirable genes.
  • Inbreeding exposes harmful recessive genes that are eliminated by selection.

The disadvantage of Inbreeding -

  • Continued inbreeding, especially close inbreeding usually reduces fertility and even productivity and this is called Inbreeding depression.
Posted by

Priyanka Kumari

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