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BREEDING

CONTENT

  1. Methods or Processes of Animal Improvement: Breeding
  2. Types of Breeding
  3. Mendelian Laws of Inheritance

 

Breeding

Heritable qualities are transferred from parents to their offspring during breeding. This is done through conventional (traditional) and modern breeding techniques.

 

Types of Breeding

(a) Inbreeding

This involves mating of more closely related animals eg mating of brothers and sisters, sire and daughter, son and dam etc. Inbreeding produces offspring with undesirable characteristics, inbred lines that can be used for cross breeding and also leads to inbreeding depression.

Advantages of Inbreeding
  1. It makes it possible for the development of pure- breed
  2. It helps to eliminate undesirable genes
  3. it can fix a particular trait or character within a breed
Disadvantages of Inbreeding
  1. It reduces hybrid vigour
  2. It can lead to fertility problems among the offspring after a long period
  3. A particular disease can be passed down from generation to generation

(b) Line Breeding

It is the mating of individuals that are not more closely related than half brothers and sisters or mating between cousins.

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