Posted by Hãi hùng (136..148.34) on June 12, 2025 at 08:57:29:
ChatGPT cho hay:
A dairy cow gets pregnant 4 to 6 times in her lifetime
1 Age at first calving:
Most dairy cows are bred around 15 months and calve for the first time in a 2 years old
2 Calving interval:
The goal is usually one calf per year, through fertility issues and milk production demands can lenthen this interval
3 Lifespan in Production:
Dairy cow are usually culled (removed from the herd) by age 6 to 8 years often due to:
Decreased milk production
Fertility problem
Health issues ( masititis, lameness
4 Total pregnancies:
From age 2 to 6-8 years, that about 4 to 6 calvings/pregnancies on average