Question

Which of the following techniques are used for induced breeding in fishes?

• A. ART
• B. MOET
• C. Artificial insemination
• D. Hypophysation

Answer 1

The correct option is D

Hypophysation

The correct option is D.

Explanation for the correct option:

1. Fish are bred through a process called Hypophysation.
2. The pituitary gland extract used in the Hypophysation procedure is injected into the fish to stimulate breeding.
3. The method also involves introducing numerous gonadotrophin hormones required for reproduction into the body.
4. Carps do not reproduce in captivity; rather, they do it in rivers. Carps may be induced to reproduce in captivity through Hypophysation.

Explanation for the incorrect options:

Option A:

1. The term "assisted reproductive technology" (ART) refers to fertility techniques and therapies that can aid in difficult or unsuccessful childbearing.
2. To improve the chance of a successful pregnancy, ART treatments manipulate eggs, sperm, or embryos.

Option B:

1. The most frequent technique used in advanced cattle breeding is multiple ovarian embryo transfer (MOET), also known as a traditional embryo flush.
2. This procedure involves administering cow hormones having FSH-like activity. They cause super-ovulation, which results in 6–8 eggs being produced every cycle as opposed to only one.

Option C:

1. The cervix, fallopian tubes, or uterus of a woman are directly injected with sperm during artificial insemination.
2. It's frequently the first course of action for couples dealing with male infertility issues, such as low sperm counts, poor sperm motility, or abnormalities of ejaculation.

Final answer: The technique used for induced breeding in fishes is Hypophysation.