Strategies for Enhancement in Food Production
(a) State the objective of animal breeding.
(b) List the importance and limitations of inbreeding. How can the limitations be overcome ?
(c) Give an example of a new breed each of cattle and poultry
a. ‘Breed’ is defined as the group of animal which are general appearance, feature, size and configuration etc.
When animals of same breed are crossed it is called as inbreeding and when the cross is between different breed then it is called outbreeding.
Objective of animal breeding:
1. For obtaining superior hybrid.
2. For increase production of animal product (milk).
3. For elimination of harmful recessive gene.
b.
Importance of inbreeding
1. Inbreeding increases homozygosity
2. Helps in accumulation of superior genes
3. Increases the productivity of inbred population.
Limitation and elimination of inbreeding
1. Inbreeding exposes harmful recessive genes and it can be removed by selection of genes.
2.Elimination of less desirable genes
3.Inbreeding depression, it can be over looked by mating of inferior animal with superior breed.
c. Example of a new breed each of cattle and poultry
1.Cattle breed- Jersey
2. Poultry breed- Leghorn
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What are the properties that are taken into account for improvement in biofortification?
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