However, the exact age for first breeding can vary depending on factors like:
* Individual animal's development: Some heifers may reach maturity earlier or later than others.
* Breeding program: Some programs may favor early breeding for specific goals.
* Management practices: Nutrition and health can influence the age at which animals are ready to breed.
It is important to consult with a veterinarian or experienced livestock producer to determine the best age for first breeding in your specific situation. They can assess the individual animal's development and provide guidance based on your breeding program.