Pregnancy sows safe summer management measures

Feeding and management objectives to increase the number of ovulation, to ensure the success of pregnancy, to ensure that sows output a large number, strong vitality, individual large piglets, postpartum sows can successfully lactation. The key measure is to limit the amount of feed intake so that the sow can reach the standard body condition.

Problems with too much fat or too little weight can lead to lack of postpartum lactation in sows, small birth weight, poor growth, frequent diarrhea, low survival rate of piglets during lactation, low weaning weight, low estrus rate after weaning, and affecting the next baby Breeding and pregnancy, raising the cost of feeding.

The specific operation and management points 1, the group feed as soon as possible after breeding to individual feeding (pre-pregnancy can be used 3-5 small group feeding, rear single-column feeding), in the case of appropriate temperature to keep quiet, so that the uterus can effectively Implant more fertilized eggs. Sows in this period should be irritated by stress as much as possible, especially to avoid heat stress. They should not be whipped, chased, or harshly treated with sows. They should not shout loudly, and must not be fed with a mild, frozen feed to prevent stillbirths. abortion.

2. Do a good job of pregnancy diagnosis 18-24 days and 39-45 days after mating, and timely detect sows that are not in the relapse or relapse. Pregnancy diagnosis: Pregnancy can be determined in normal conditions by sows that no longer have estrus after 21 days of mating. Its performance is: snooze, appetite, easy to wear, light fur, tame, stable behavior, the cracks in the vulva contracted down into a line.

3. The pregnant sows are regularly evaluated and fed and managed in three stages according to the pregnancy stage. The feeding amount within one month of pregnancy is 1.8-2.2 kg per head per day, the feeding amount within two months of the middle of pregnancy is 2 to 2.5 kg per head per day, and the feeding amount in the last month is 2.8 to 1 per head per day. 3.5 kilograms, feed breastfeeding for one week before birth, and appropriately reduce the material.

4, set aside defecation, to keep the shed clean and hygienic; do summer heat protection and winter warm work, so that the temperature is maintained at about 20 °C, is strictly prohibited inside the house high temperature, humidity, icing, slipping, to prevent miscarriage.

5. After 1 month of pregnancy, the sow should be fully exercised, and the amount of exercise should be reduced in the later stages of pregnancy. Before exercise, stop exercise, prevent constipation, and force the birth.

6, found that timely treatment of pigs and disinfection of the whole group, prohibit the use of drugs that cause abortion (such as dexamethasone, etc.); prevent high fever caused by abortion.

7. The sows are transferred to the delivery room to adapt to the environment 7-10 days before delivery. At the same time, attention should be paid to the brushing of the breasts, legs, and the vulva to keep the pens and pigs clean.

Prevent mosquitoes, flies, and bites from attacking sows by mosquitoes, flies, and poisonous insects. This will not only affect rest, impede the healthy growth of the fetus, but also contagious diseases. Therefore, early in summer, it is necessary to set up a gauze net to prevent mosquitoes. In the peak period of mosquitoes, vitamin B1 is fed once every 3 days and the amount of 30 mg to 40 mg is fed. This way the sow can produce an odor that the mosquitoes can't approach, and it can also smash the tomato leaves and mint leaves. Rubbed on sows, have a good repellent effect.

Prevention of human frightened sows pregnant sows most afraid of frightened, vulnerable to stress after summer scars. Therefore, the surrounding environment of the pig house should be kept quiet. In summer, it is not advisable to transport sows in long distances to avoid death due to crowded heat stress. It is also necessary to carry out cool nights when purchasing fine breed sows or short-distance transportation.

In order to prevent the occurrence of mechanical abortion and increase the number of specialized sows, it is necessary to pay attention to reasonable arrangement of the sow's rearing density in the summer. For example, in a 7 to 9 square-meter sow house, up to 4 in early pregnancy and up to 2 in late pregnancy, it is best to keep the animals separately, so as to avoid strong bullying and uneven feeding. The fetus does not grow neatly and can avoid biting and colliding with each other due to high temperature irritability, resulting in increased stillbirth or miscarriage. If there are grasslands nearby, the sow can often go out and increase the health of the sow, and the litter size can be shortened during farrowing.

Prevention of Disease Infection Summer sows are prone to lice and lice, especially in the ear of pigs. The sows at the end of the third trimester of pregnancy should reduce the amount of their raw materials within 3 days before the birth. Only a few wheat bran porridges can be fed after the birth. The sow was disinfected and cleaned with 2% potassium permanganate solution before being transferred to the delivery room and allowed to dry. At the same time, the delivery room is cleaned and disinfected so as to ensure the healthy growth of the piglets after childbirth.

To prevent environmental pollution and timely removal of feces, regular disinfection, disinfection drugs can be used such as killing or sodium hypochlorite, etc., can not be quicklime or feroxin disinfection of sows. Feed the wet mix in the pig's trough, avoid leftovers as much as possible, and remove leftovers in time to avoid mildew. The trough is cleaned daily and dried in the sun.

Preventing Sherwin's excessively high temperature for pregnant sows in over-summer should create a cool environment. The piggery should be kept dry, and the nets should be installed on doors and windows to prevent mosquitoes and flies; equipment such as shading and ventilation should be provided to prevent the occurrence of heat stroke and other heat stress diseases. Sprinkle cool water into the house on hot days, but do not spray directly on the sow. When the temperature reaches 30°C or above, measures such as installing air conditioners and electric fans may be adopted to rapidly reduce the temperature to prevent stillbirth.

To prevent the feed from being incomplete During the summer season, the number of feeds should be increased and the number of feeds should be increased. Each feed should not be excessive, and feed in the early morning, feed more in the evening, and feed at night. Before each feeding, the leftovers in the trough should be cleaned and fed again. In addition, the drinking water on the playground should be kept uninterrupted and the drinking fountain should be placed in a cool place in order to prevent the sunlight from heating up. At noon the weather is hot and the sows have poor appetite. They can be fed with some concentrated feed.