- 1. Agricultural Purposes:
- Increased Productivity: Breeding for improved traits such as faster growth rates, higher milk yields, or larger offspring can increase agricultural output.
- Disease Resistance: Developing varieties resistant to diseases can reduce the need for antibiotics or pesticides and improve animal and crop health.
- Adaptation: Breeding for specific environments (e.g., drought tolerance) can improve crop performance in challenging conditions.
- Quality: Breeding can enhance product quality, such as taste, nutritional content, or shelf life.
- 2. Aesthetics:
Breeding for specific physical traits or coat patterns is often seen in companion animals and ornamental plants.
- 3. Health and Temperament:
In companion animals, breeding can aim to improve traits like docile behavior, reduced aggression, or inherited disease resistance.
- 4. Performance:
In sports or working animals, breeding can enhance athletic abilities or trainability.
As for who decides, it depends on the context. In agriculture, it's usually a collaborative effort between farmers, researchers, and breeding companies. For companion animals, it's often individual breeders or kennel clubs that set breeding standards. In commercial plant breeding, it's typically a combination of private companies, research institutions, and government regulations.