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Strategies For Enhancement In Food Production

Mediumbiology

Which controlled breeding technique allows a superior cow to yield several calves yearly by transferring multiple fertilised embryos into surrogate mothers?

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About This Question

Subject
biology
Chapter
biology and human welfare
Topic
strategies for enhancement in food production
Difficulty
Medium
Year
2025
Tags
MOETembryo transfer technologymultiple ovulationsurrogate mothercattle breeding

Solution

Correct Answer:

MOET

Multiple Ovulation Embryo Transfer technology, abbreviated as MOET, is a programme used for herd improvement in which a high-milk-yielding or otherwise superior cow is hormonally stimulated to produce many eggs at once instead of the usual single ovum. These eggs are fertilised, and the resulting early embryos are recovered and transferred into surrogate mothers, so a single genetically superior cow can contribute to many offspring in a year, greatly accelerating breeding progress. Artificial insemination is incorrect because, although it introduces selected semen into the female, it does not involve recovering and transferring multiple embryos to surrogates as described. Inbreeding is wrong because it refers to mating closely related animals within the same breed to fix desirable traits, not embryo transfer. Out-crossing is incorrect since it is the mating of unrelated animals of the same breed to introduce new genetic vigour, again not an embryo-transfer method. As explained in NCERT Class 12, Chapter 9 (Strategies for Enhancement in Food Production), MOET is applied to cattle, sheep, and other livestock for rapid genetic improvement. As a consistency check, only MOET combines multiple ovulation with embryo transfer to surrogates, confirming it as the correct technique.

This medium difficulty biology question is from the chapter biology and human welfare, covering the topic of strategies for enhancement in food production. It appeared in the 2025 exam.

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