When is the most suitable time to breed replacement gilts?

The suitable age and body weight for the first mating of replacement gilts vary with breed and feeding management conditions. Generally speaking, early-maturing local breeds can be bred at 6 to 8 months of age and 50 to 60 kg of body weight, while late-maturing improved breeds should be bred at 8 to 10 months of age, 110 to 120 kg of body weight, and during the second estrus.