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A cow which give more milk per lactation...

A cow which give more milk per lactation is evolve into pure line by mating with superior bull of same breed for 4-6 generation. Which type of breeding is being referred to in this case?

A

Inbreeding

B

Outbreeding

C

Cross breeding

D

Out crossing

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Question**: The question states that a cow that produces more milk per lactation is being evolved into a pure line by mating with a superior bull of the same breed for 4-6 generations. We need to identify the type of breeding being referred to. 2. **Identifying Breeding Types**: - **Inbreeding**: This involves mating individuals of the same breed that are closely related. In this case, since the cow is mated with a superior bull of the same breed for multiple generations, it suggests that the breeding is focused on maintaining genetic similarity and enhancing specific traits. - **Outbreeding**: This refers to mating between individuals of different breeds or species. This is not applicable here as the cow and bull are of the same breed. - **Crossbreeding**: This involves mating individuals from different breeds within the same species. Again, this does not apply since the cow and bull are from the same breed. - **Outcrossing**: This is similar to inbreeding but involves mating individuals of the same breed that are not closely related. This does not fit the description provided in the question. 3. **Conclusion**: Given that the cow is being mated with a superior bull of the same breed for 4-6 generations, the correct type of breeding being referred to in this case is **inbreeding**. **Final Answer**: The type of breeding being referred to is **inbreeding**. ---
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