What are some advantages and disadvantages of selective breeding in animals?

1. What are the advantages of selective breeding animals?
2. What are pros and cons of selective breeding?
3. How have pugs been negatively affected by selective breeding?

What are the advantages of selective breeding animals?

Benefits of selective breeding: new varieties may be economically important by producing more or better quality food. animals can be selected that cannot cause harm, eg cattle without horns.

What are pros and cons of selective breeding?

Selective breeding is an extremely efficient way to good genetics in certain crops and livestock. However, if you are concerned about the cons of it, such as a genetic depression or discomfort to animals, the alternatives can be much worse, such as carrying out genetic modification.

How have pugs been negatively affected by selective breeding?

Can breed manipulation harm animals? ... The pug was selectively bred to feature an extremely flat face, which contributes to breathing difficulties and eye injuries. Disorders like hip dysplasia, commonly seen in large purebreds, such as German Shepherds have emerged due to the breeder's desire for a sloping back.