Raise the number of litters and the milking power of sows
Scientific feeding management. To create a suitable environment for growth, sows should be bred in a timely manner to increase the conception rate; to provide a balanced diet and to control the piglet's lyrical condition; if the piglets are overweight, it will cause estrus to be insignificant and difficult to breed; and the sows will produce too much milk after production. , but also easy to cause piglets indigestion. The key to raising the number of piglets is to keep the sow in a proper condition from the time of mating to delivery (80%). The diet of pregnant sows uses lower energy levels, and in order to reasonably use energy at low energy levels, high and low feeding methods are needed. Specific methods: From mating to pregnancy 30 days to take a higher level of nutrition, mid-pregnancy with a low level of nutrition, late pregnancy and then give a high level of nutrition.
Increase sow milk production. The level of sow milk production is affected by many factors such as the number of births, the number of suckling piglets, the age of sows, and the conditions of feeding and management. The practice is to provide diets based on the lactating and physiological needs of sows, and to control breastfeeding: 1. Pre-rational reductions should be made, and postpartum must be gradually increased. Prenatal reductions can allow sows to reduce their gastrointestinal burden during the delivery process, which is very beneficial for the successful delivery of sows and normal lactation. The gradual increase of the postpartum diet will promote the smooth recovery of sows' uterus, and prevent the occurrence of diseases such as indigestion, puerperal fever and mastitis. 2. Adjust the amount of feed according to the lactation curve. The general lactation peak is from 15 days to 28 days after childbirth and gradually decreases after 30 days. According to this law, the sow feed can exert its maximum lactation performance. In order to increase the intake of food and shorten the fasting time of day and night, two feeds were changed from the fifth day of delivery to three times, from the eighth day to four times, and then from 55 days to two times. That is, adopt low and high breeding methods. Sows fed four times a day to make them feel full, prevent standing up at night arching or looking for food, can reduce crushed to death, trampling on piglets, is conducive to quiet sows rest.
Establishing milking and feeding conditions
Practice has shown that the number of sows in the milk is proportional to the amount of lactation, that is, the more milking times, the higher the milk yield. Putting milk can be created by creating conditioned reflexes by using a signal (whistle, ringing tone, or the breeder's mouth humming). When the sow is normally fed, the breeder sends out this signal for multiple trainings and conditioned reflexes can be formed. After the formation of conditioned reflexes, the same signal is given to stimulate the sows to send milk. Using milking and conditioned milk reflexes can increase the number of times the sow is fed, thereby increasing the amount of milk produced by the sow.
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