Feeding and management of parturient and lactating sows

   (1) the advantage of net bed litter birth is a new technology rising in the intensive breeding field, which has the advantages of convenient work, dry, hygienic, tread-proof, pressure-proof and so on. Compared with the ground birth bed, the net bed is to install the sow delivery room into a net bed and set up a protective fence to reduce the pressure and trample on the piglets; it is easy for the breeders to keep the piglets free of feces, so that the piglets are separated from the ground and feces, and the piglets do not or less suffer from intestinal disease, which improves the survival rate of piglets; it is easy to feed and improve the evenness of piglets. Generally speaking, the number of babies born on the net bed is 1 and 2 more than that of the litter on the ground.

The picture shows: sow

   (2) feeding management of parturient sows the feeding of parturient sows can be subdivided into three stages: perinatal period, lactation period and weaning preparation period.

   1. Perinatal period: perinatal period is divided into preparation period of delivery (one week before delivery) and early stage of lactation.

(one week after delivery) The purpose of this period is to ensure smooth delivery of sows and prevent the occurrence of non-milk syndrome (MMA). ① needs to be reduced gradually for 4 days before delivery, but the sows with poor body condition and no obvious breast expansion are not cut off. ② the first day postpartum do not rush to feed, because the sow childbirth fatigue, poor digestive function, if eating too much easy to cause indigestion, anorexia, then let the sow quiet rest, it is best to feed bran brine brine. The second person after ③ is fed.

Feed 1 kg 1.5 kg, and then increase the feed amount of 0.25 kg 0.5 kg per day according to the body condition, milk yield, appetite and growth and development of piglets.

   2, prosperous milk period (7 days postpartum to 3 days before weaning): the mother of this period: first, to make the sows lactation enough to ensure that the piglets eat enough milk and grow healthily; second, to control the excessive weight loss of the sows during the lactation period, so that the sows are in estrus in time after weaning, and the sows can basically eat freely in one week after delivery, and the daily feed amount of the sows is 2.5.

On the basis of kg, increase by 0.250.3 per piglet.

Kg feed, according to body condition, lactation status, piglet growth and health status, the sows were fed at a medium body condition of 3 portions of fat before weaning. However, in hot summer, sows often lack milk due to a decline in food intake, so it is necessary to increase the energy supply of sows in summer. There are two ways to increase the energy supply of sows:

One method of    is to increase feed intake, to feed sows when the weather is cooler in the morning and evening, to increase feed intake by dripping water to cool sows, or to use water curtains to cool down, to increase fans or exhaust fans, and so on; to use water mixture instead of dry powder; to add baking soda to feed, another way is to add 2% or 4% fat to the diet.

   3, weaning preparation period (3 days before weaning to weaning): the purpose of this period is to gradually reduce the lactation of sows, which is beneficial to exercise piglets to feed and prevent sow mastitis. Sows in good condition were appropriately reduced to 3 kg 3 days before weaning, but those in poor condition were not reduced.

   4, supply sows with adequate clean drinking water: in order to meet the needs of lactation, the daily intake of 5kg / day during the peak period of lactation can reach 57.7kg / day, and the amount of drinking water can reach 15,25L / day, which can be as high as 28 litres in summer. This requires the automatic water dispenser to discharge up to 1.5 liters per minute, and the lactating sow should be driven to drink water 2 hours after each feeding, and the water supply pipe should be protected from exposure to the sun.