Starting a pet breeding business requires careful consideration of several key factors to ensure both the well-being of the animals and the viability of the business. Here are some important points to consider:

**Understanding Genetics and Health Screening**: The first aspect to consider is the genetics of the animals you plan to breed. It’s crucial to have a deep understanding of the breed’s standard traits and to ensure that the breeding pair does not pass on undesirable characteristics or health conditions to their offspring. Health screening for genetic diseases, regular vet checkups, and vaccinations are imperative.

**Legal Requirements and Ethics**: Before initiating a breeding program, you need to understand the legal requirements in your area. This includes obtaining necessary licenses, understanding animal welfare laws, and compliance with any local, state, or national regulations concerning pet breeding. Ethical breeding practices should be at the heart of your operations to ensure animals are treated with kindness and respect, discouraging overbreeding and preventing any form of animal abuse.

**Facilities**: Appropriate facilities for breeding animals are essential. This includes having enough space to house them comfortably, access to outdoor spaces, and proper care facilities. Each breed might have specific needs in terms of space, temperature, and dietary restrictions that need to be carefully managed.

**Market Research**: Understanding your market is crucial. This includes not only potential buyers but also understanding the market demand for the breeds you are planning to focus on, current market prices, and the best marketing techniques. This research will help you to position your business correctly, targeting the right customers and setting competitive yet fair prices.

**Support System**: It’s wise to build relationships with other breeders, veterinaries, and pet care experts. They can offer invaluable advice, provide services, and help during unexpected challenges. Also, consider joining breeder associations and clubs which can provide support through resources and information sharing.

Therefore, while pet breeding can be potentially rewarding, it also demands serious commitment to the welfare of the animals and a sound business strategy.