Here's why:
* Genetic problems: Breeding closely related animals (like siblings) increases the risk of genetic defects and health issues in the offspring. This is because they inherit similar genes, which can lead to the expression of recessive genes that might otherwise not be present.
* Inbreeding depression: Continued breeding of closely related rabbits can lead to inbreeding depression, resulting in reduced fertility, weakened immune systems, and overall poor health in future generations.
* Ethical concerns: Breeding siblings is considered unethical in many animal welfare contexts.
It's always best to breed rabbits from unrelated lines to promote healthy and diverse offspring. If you're interested in breeding rabbits, it's crucial to research responsible breeding practices and seek advice from experienced breeders.