To choose to stay and nurture new sows, you should do six things:
One note that most of the local breeder pigs have a high number of litters, strong maternity, resistance to roughage, and strong adaptability to local natural environment conditions. Breeding should be based on the need to select good boar.
Second, attention should be paid to the selection of retained sows, and their parents and their immediate kinship should be managed to understand the performance of their parents and their immediate kinships. These factors include high feed utilization rate, rapid weight gain, good meat quality, high slaughter rate, good motherhood, and high numbers of litters and milking power. Strong, fast-growing piglets, and pre-selected sows in the offspring of high-quality weaned pigs.
Three attention to the general requirements of the selected sow's appearance is that the body is large, the back is straight, the hindquarters are wide and well developed, the limbs are strong and slightly long, the body parts are well-proportioned, the skin is meticulous, the fat is not thin, and the sensation is effective. 6 pairs or more, there is a certain interval between the nipples, and neatly arranged, there is no vice nipples or dysplastic nipples.
Pay attention to selecting and keeping good pigs and gilts, and focus on cultivating 2 to 3 piglets in a targeted and planned way during the suckling period of the piglet. Fix the seeds of the pre-selected sows in front of the breeding pigs and 2 pairs to 4 pairs of milk. Most of the nipples have milk on them, and do a good job in preventing and controlling diseases, and prevent them from squatting at the stage of piglets.
5. Pay attention to new sows after weaning, and gradually use good green roughage as the main feed. Feeding gilts with green roughage can improve gastrointestinal function, and it can adapt to the needs of high reproductive power and high milking power in adulthood. Legume grasses contain estrogen and can increase the fertility of the sow. The green roughage fed to the gilt is best for legumes. In order to ensure comprehensive nutrition, it is also necessary to properly mix bran feeds and supplement certain protein meals such as oil cakes and fishmeal.
6. Pay attention to the management. There should be a playground in the lap of the new sow, and it can also be used in conjunction with grazing to carry out exercise to enhance the metabolic function of the sow. It should be ensured that pig houses are clean and dry, and they are regularly sterilized.
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