According to the survey, the incidence of constipation in sows in large-scale pig farms can be as high as 75%, and sow constipation has become one of the bottlenecks in improving the production level of pig farms.
First, performance and harm:
1. The mortality rate of pregnant sow embryos is high, the number of litters is small, and there are many weak ones.
2. The sow's labor process is prolonged, and the piglets are suffocated due to lack of oxygen, which increases the number of stillbirths.
3, sows do not eat fever, easily lead to postpartum no milk syndrome. Increase the difficulty of breeding piglets.
4, postpartum sows can not be normal estrus, or even estrus. Increase feed costs and reduce production efficiency.
Figure 1: Sow constipation
Figure 2: Sow constipation
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Second, the cause analysis:
1. Sow pregnancy and lactation physiology determine its weak ability to digest food
The gastrointestinal tract peristalsis is weakened by the effects of hormones during the sow's pregnancy. Coupled with the gradual increase of the fetus, the inflated uterus oppresses the small intestine, so constipation is prone to occur.
2, sow activity space is limited, lack of exercise
Large-scale pig farms use a full-load continuous workflow to save production costs. Feeding of sows is often limited to very limited spaces and so-called limit bars. Free activity becomes a luxury, which makes the peristaltic function of the intestines weaken and the digestive function is low to form constipation.
3. Insufficient drinking water
The occurrence of constipation is directly related to the amount of drinking water. Drinking water is insufficient, and the water in the chyme is excessively absorbed in the large intestine, thereby forming constipation.
4. Health care programs are too dependent on antibiotics
Large-scale pig farms often have more comprehensive health care programs, but health care programs are too dependent on a wide range of broad-spectrum antibiotics. These antibiotics also affect the growth of beneficial bacteria in the intestinal tract, and the result is a serious imbalance of the intestinal flora, affecting food digestion and constipation.
5, various environmental stress
Large-scale pig farms have greater stocking density than traditional farms. Different environmental stresses such as high temperature, turret, refueling, vaccination, etc. cause sow feed intake to decrease, effectively stimulate the intestinal tract to cause constipation. .
6, feed nutrition factors
The high-energy low-fiber feed in the first half of pregnancy and the low-energy and low-protein feed in lactation do not meet the physiological characteristics of the sow, resulting in abnormal feed intake of the sow.
7. Heat-borne diseases cause constipation in sows.
The occurrence of heat diseases such as blue ear and swine fever causes sow constipation and miscarriage.
Third, the response measures:
1. Ensure adequate quality drinking water
At all times and under all circumstances, adequate and clean drinking water must be provided for the sow. Ensure good water quality, cool water and sufficient water.
2, nutritional formula
In summer, the heat stress of pigs is more serious, and the feed intake of sows will decrease. The formula can be slightly modified, the content of the appropriate crude fiber, and some substances such as oil or molasses can be added to the intestines and laxatives. This can avoid the troubles caused by the treatment of a single constipation sow and believe that it can achieve better results.
3. Appropriate exercise
It is recommended that qualified pig farms introduce intelligent pig raising equipment to ensure that the sows have enough exercise space and restore the sow herd living environment, which is conducive to ventilation and reduces the incidence of respiratory diseases.
4, reduce drugs, add probiotics, physiological regulators
It is recommended that the sows use the drug-added feed 7 days after delivery, and the sows in any other period are not added. At the same time, the use of probiotics in the feed - Jiuding Synbiotic 101, can improve the intestinal micro-ecological environment, relieve constipation caused by drug or other causes of intestinal flora imbalance.
In the stage of sow's heavy and lactation, you can use Jiuding, a new sow physiological regulator, Dingmu'an, which not only reduces sow constipation, but also reduces appetite, eliminates anemia in piglets and piglets, and eliminates prenatal breasts in sows. Edema, good postpartum lactation, shorten the labor process, reduce dystocia, stillbirth rate, high vitality of piglets, reduce sow mastitis and piglet squatting, improve the survival rate of piglets, increase the birth weight and weaning weight of piglets, and improve the physiology of sows Abnormality, promote the balance of hormone secretion in sows, achieve normal estrus after weaning, easy breeding, and improve the efficiency of sows.
5, on-site inspection
Breeders should closely monitor the health of the herd and pay special attention when encountering abnormal conditions such as sows not eating or panting. Monitor the body temperature changes of suspected pigs in real time and deal with them accordingly. Prevent constipation due to elevated sow temperature.
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