Why sows are not suitable for breeding

Symptoms of successful breeding of sows  

Farmers should know that judging whether sows are successfully mated should be observed from different time periods, respectively, from early  

Phase, medium and late to observe and judge, farmers need to keep in mind these tips.  

First, early diagnosis  

1, about 20 days after the sow mating, pig farmers should pay attention to observe the status of the sow  

1) Look at estrus  

Under normal circumstances, sows are considered to have been basically registered if they are no longer in estrus more than 20 days after mating.  

Wait until the second estrus period is still not estrus, can think has been pregnant.  Some sows may show signs after pregnancy  

Symptoms of estrus. This estrus is called pseudoestrus.  

2) Look at action  

After mating, if the sows show quiet, sleepy, eat very sweet, increased food intake, easy to fatten up, fur day  

Yiliang and close to the body drive, temperament becomes docile, steady action, vulva contraction, vulva joint to the upper bend  

Curve, abdominal gradually enlarged, namely for the symbol of pregnancy.