Direction: Choose the correct option:

Assertion (A): Cross breeding of dairy animals increases the productivity of milk.
Reason (R): Lactation period of dairy animals can be increased by cross breeding.

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Solution

Correct answer: (a) Both assertion(A) and reason(R) are true and reason(R) is the correct explanation for assertion(A).

• Cross breeding increases the lactation period of a dairy animal and thus the productivity of milk increases.
• Hence the correct option is (a).

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Similar questions

Q.
Dairying : Management of animals for milk and its products
Lactation : _____________________

Q. What is artificial insemination? Mention its two advantages in breeding of dairy animals.

Q. Assertion :A single outcross often helps to overcome inbreeding depression. Reason: Out-crossing is best breeding method for increasing milk productivity.

Q. Regarding assertion and reason, choose the correct option
Assertion [A]: Plant breeding is quite similar in application to animal breeding.
Reason [R]: Both plant and animal breeding aim to bring desirable qualities in one plant or animal to make them a better source of food.

Read the following statements (A-D) and select the option which correctly identifies true (T) and false (F) statements.

A. Out-breeding is the practice of breeding related animals.
B. Out-breeding is of three types which include out-crossing, cross-breeding and inbreeding.
C. Out-crossing is the practice of mating of animals within the same breed with no common ancestor up to 2-3 generations.
D. Out-crossing is the best breeding method for animals that are below average in productivity (milk production) and growth rate (meat production).

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Direction: Choose the correct option: Assertion (A): Cross breeding of dairy animals increases the productivity of milk. Reason (R): Lactation period of dairy animals can be increased by cross breeding.

Correct answer: (a) Both assertion(A) and reason(R) are true and reason(R) is the correct explanation for assertion(A). • Cross breeding increases the lactation period of a dairy animal and thus the productivity of milk increases. • Hence the correct option is (a).

Direction: Choose the correct option:

Assertion (A): Cross breeding of dairy animals increases the productivity of milk.
Reason (R): Lactation period of dairy animals can be increased by cross breeding.

Correct answer: (a) Both assertion(A) and reason(R) are true and reason(R) is the correct explanation for assertion(A).

• Cross breeding increases the lactation period of a dairy animal and thus the productivity of milk increases.
• Hence the correct option is (a).