The passage is mostly grammatically correct, though it can be revised for clarity and conciseness. Here's the breakdown of its meaning along with a rephrased version:
### Meaning:
The text discusses the mating process of sows (female pigs). It explains that sows should be mated when they are 6-7 months old and in heat, displaying signs such as mucus discharge, restlessness, and vulvar changes. For mating, a sow is placed with a boar in a private