Sowing during pregnancy, the body will have more obvious physiological changes, not only the speed of metabolism will accelerate, but also the weight will continue to increase.Especially for sows who enter late pregnancy, both mothers and fetuses need higher nutritional levels.In order to improve the reproduction performance of sows and ensure the number and quality of its childbirth, according to the physical condition of sows during pregnancy, sows use segmented breeding methods, scientific breeding, and focusing on improving the level of daily feeding management, so as to ensure the protectionThe reproduction performance of sows during pregnancy creates higher economic benefits for pig breeding companies.As a result, the author briefly analyzed the breeding technology of sows in the early stages of pregnancy, mid -term and late stages, and analyzed many matters such as the breeding environment, stress, health care, and breastfeeding during the management process.Enterprises provide reference.
1 Analysis of breeding technology during sows during pregnancy
1.1 Sow breeding in the early stages of pregnancy
The sow is in the early stages of pregnancy within 30 days of pregnancy. It can be determined based on the status and signs of the sow after breeding.Enter early pregnancy.The placenta in the early stages of pregnancy is not mature, and the fetus is still unstable. Once the sows are scared or fighting with other sows can easily lead to abortion. At the same time, stimulation during vaccination is also a direct cause of the sow abortion in the early stages of pregnancy.Sowing appetite in the early pregnancy will increase greatly, and the emotional growth will grow rapidly, but at this time, the fetal nutritional needs are not high, and the growth rate is slow.At this stage, we should ensure that the sow is provided with higher energy feed and add an appropriate amount of green feed to avoid feeding moldy and degenerate or cold feed, so as not to lead to a significant decrease in the level of progesterone in the sows, or increase production difficulty due to excessive obesity.The feeding of sows in the early stages of pregnancy should be controlled between 1.8-2.2kg.
1.2 Breeding sows in the middle of pregnancy
During the pregnancy, sowing between 2-4 months is a sow in the middle of pregnancy. At this stage, the first 45D fetus is not fast. The feeding amount is consistent with the same before pregnancy.In the latter 45D fetus, the number of nutrients required for rapid growth, coupled with the gradual development of the sows’ breasts. At this time, the amount of feeding will increase significantly. Therefore, the amount of feeding is appropriately adjusted to increase to about 2.5kg.At this stage, the sow can be scientifically controlled. If the sow is thinner, the feeding amount should be increased.Generally, when sows are pregnant for two and a half months, if too much feeding, fat will accumulate in the body, which will not only affect its breast bubble development, but also reduce its lactation performance.
1.3 The breeding of sows in the late pregnancy
The sows from 3 months of pregnancy to the late pregnancy period from the time of pregnancy.During this period, the fetus will grow and develop quickly, and the fetus pigs will complete the weight growth in about 1 month before childbirth. Therefore, the fetus needs a high nutritional demand at this stage. At the same timeFor sows in the late pregnancy, the principle of breeding is to gradually increase the feeding amount. The feeding amount should usually be increased from 2.5kg in the middle of the pregnancy to 3.0-3.5kg.The feeding amount should be gradually reduced around 1 week before giving birth, so as to avoid excessive feeding and the phenomenon of abdominal compression of the fetus, which leads to the death of the fetus.
2 Analysis of the management points of sow during pregnancy
2.1 Optimize breeding environment
The sows during pregnancy should be cleaned in time, formulate strict disinfection plans, and regularly disinfect pigs, sports fields and surrounding environments. The sows have stress or abortion.At the same time, the ventilation and drainage work in the delivery room must be done to ensure that the environment in the pig house is clean and dry.In addition, the temperature and humidity of the pigs should be controlled. In winter, we should do a good job of keeping warm and windproof.The temperature of the pig’s house should be kept between 18-22 ° C, and the humidity should be between 60%and 70%.
2.2 Eliminate stress factors and reduce stress response
Within two weeks after breeding sows, the temperature of the pig house should be controlled below 30 ° C, so as not to cause the sows in the abdomen of the sows due to the high temperature.The sow cannot be circled after breeding. It is best to breed in the column. Do not drive or kick the sows during pregnancy, and avoid fighting between sows between sows to avoid stimulation and abortion.At the same time, the feeding density should be set up reasonably. During the feeding process, the feeding amount should be controlled, and the feeding speed should be consistent, so as not to cause the sow to have a stress due to changes in feeding.
2.3 Strengthening sports health management of pregnancy sows
When sows in the early stages of pregnancy, sow must ensure sufficient rest. When the fetus in the middle of pregnancy is stable, the sow should be allowed to perform a 1-2h exercise every day. The appropriate amount of exercise is conducive to reducing the difficulty of sow production.Sowing should be reduced in the later pregnancy, and exercise should be suspended around 7 days before giving birth.During the entire pregnancy, the sow should be provided with clean and sufficient drinking water.2 months after pregnancy until about 20D before giving birth, the sow should be healthy and health care.Pharmacy such as honeysuckle, board aspect, and other potions can be mixed with the feed to the sow to achieve the health effect of clearing heat and detoxifying.
2.4 Scientific receiving production and strengthening breastfeeding management
Before the sow enters the delivery room in the late pregnancy, the pig body should be fully disinfected. It is necessary to focus on cleaning its breasts and vulva and disinfection.After the piglets are produced, they should be carried out in time to give them timely and sufficient first milk, and boil it with bran and salt into soup to feed the sows to make the body fluid quickly supplement.If the sow is difficult to give birth, artificial delivery is required.There is no need to feed any feed within 1 day after the sow is produced. From the second day of the afterbilation, the feeding amount should be 0.5kg per pig, and the daily feeding amount should be appropriately increased until it returns to normal.It can increase the amount of green feed feed, which is conducive to the increase in sow lactation.It should be noted that about 7 days before weaning, the amount of juice feed can be appropriately reduced, and the fine feed is gradually reduced.It can be stopped for one day on the day of weaning, but make sure sow drinks water.
3 In the process of breeding sows, scientific application of breeding technology is very critical, which not only helps improve sows’ resistance to diseases, but also promote the childbirth.At the same time, the breeding management should also be optimized. The breeders should optimize the breeding environment, eliminate stress factors, strengthen the sports health management management of pregnant sows, scientifically receive production and strengthen breastfeeding management.Production, improve its postpartum lactation capacity, ensure the breeding performance of sows, and ensure the economic benefits of farms.
Author: Li Yuzong Senior Animal Rev., mainly engaged in animal health supervision and law enforcement.