Question

Outbreeding is an important strategy of animal husbandry
A. Exposes harmful recessive genes that are eliminated by selection
B. Helps in accumulation of superior genes
C. Is useful in producing pure lines of animals
D. Is useful in overcoming inbreeding depression.

Answer 1

Hint: Breeding of the unrelated animals, which may be between individuals of the same breed but having no common ancestors for four to six generations or between different breeds or different species.

Step by step answer:Raising livestock and breeding practice to produce superior animals known as animal husbandry.
To produce superior breeds there are two breeding methods to produce superior progeny, which give superior quality products.
1. Outbreeding
2. Inbreeding
Outbreeding is an important strategy of animal husbandry because it is useful in overcoming inbreeding depression. Continuous inbreeding results in a reduction in productivity and fertility. This is called inbreeding depression. To overcome this problem unrelated breeds of animals should be mated to gain superior progeny. Karan Swiss is a good example of our breeding breed. This breed is produced by crossing Sahiwal cows with the semen of Brown Swiss bulls imported from America.
So, the correct answer is (D).

Additional Information:
Outbreeding is three type
-Outcrossing: Mating of animals within the same breed but having no common ancestors for up to four to six generations.
-Crossbreeding: Mating Superior male of one breed to superior male of another breed. Example: Sunandini is a good example of this type of breeding method. Sunandini originated in Kerala.
-Interspecific hybridization: Male and female animals of two different related species are mated. Example- Mule is produced by a cross between a female horse and a male donkey.

Note: Inbreeding is a method of breeding between more closely related individuals within the same breed for four to six generations. Inbreeding helps to produce pureline generation.