How can the reproductive performance of sows be effectively improved?
The reproductive performance of sows is related to indicators such as litter size, piglet vitality, survival rate and sow milk yield, and has a direct bearing on the economic benefits of pig farming. So if you want to make money raising pigs, you have to find ways to improve the reproductive performance of sows. So how do you improve it? Let's take a look together.
1. Selection of sows
The reproductive performance of sows has hereditary characteristics, so to ensure the reproductive performance of sows, you must first select excellent breeding pig breeds. After choosing a good breed, you also need to select excellent individuals. When selecting breeding stock, choose according to market demand and the actual situation of the farm. In China, most pig producers choose binary sows, as these pigs have good production performance, high fertility and good lactation performance. After selecting the breed, choose those with good body shape, well-developed reproductive organs, normal estrus and ovulation in sows, and good health with no disease.
2. Timely mating
Timely mating is also an important means of improving the conception rate of sows. At present, most farms choose artificial insemination, which can greatly improve the conception rate and litter size of sows. However, mating must be done at the right time, which requires breeding personnel to do a good job in estrus identification and master the optimal mating time. Generally, the optimal mating period is when the sow usually must change from being excited and restless to becoming quiet, accepting being mounted by other pigs, and showing symptoms such as the standing reflex.
3. Feeding and management of sows
The feeding and management of pregnant sows should be strengthened. The gestation period of sows can be divided into early gestation and late gestation, and suitable nutrition should be supplied according to the nutritional characteristics of different periods. In the early stage, fetal growth and development are slow, and it is only enough to maintain the sow's own needs, while in the late stage the fetus develops faster, so attention should be paid to strengthening the supply of nutrition. At the same time, sows should be fed reasonably according to their own condition. For individual sows that are too thin, feed should be appropriately increased, while for sows that are too fat, feed should be appropriately reduced. Feeding moldy or spoiled feed is strictly prohibited. Do a good job of heat prevention in summer and heat preservation in winter, and prevent miscarriage caused by sows fighting each other.
The above is an introduction to how to improve the reproductive performance of sows. We hope it can help you. To learn more related knowledge, please stay tuned to us.