Artificial insemination (AI) is widely practiced in Punjab for:

The correct answer is: d) All of the above

Artificial insemination (AI) is a technique that involves the introduction of semen into the female reproductive tract by artificial means, rather than by natural copulation. It is widely practiced in Punjab for the following reasons:

• Improving cattle breeds: AI allows farmers to select the best sires for their herds, which can improve the quality of their livestock.
• Increasing conception rates: AI can help to increase the conception rates of cattle, which can lead to higher yields of milk and meat.
• Disease control: AI can help to control the spread of diseases, as it prevents the need for cattle to be transported long distances for breeding.

In addition, AI can also be used to help infertile cattle conceive, and to produce offspring from rare or endangered breeds.