With the arrival of the beginning of summer, the temperature will gradually increase, and pigs have low feed utilization rate and slow weight gain when the temperature rises above 35°C or falls to minus 5-10°C. Therefore, the high temperature season should be based on different types of pigs and different physiological stages of pigs to give different feeding and management. Specific pig raising techniques are as follows:
First, feed the boar twice a day, at noon plus green feed or thinning, breeding and sports are carried out in the morning and evening. Do not spray water or spray cool water immediately after matching. Every day from 1pm to 3pm, the pig body is sprayed with water once on the ground and the light is reduced to 8-10 hours. If the number of breedings is small, the amount of concentrate feed, excessive fat, and poor sexual desire should be reduced.
Second, pregnant sows avoid breed breeding in the hot season. Pre-pregnancy (0-84 days) sows should be dominated by green coarse material, with the appropriate material, reduce the breeding density, raising 2-3 per lap. In the second trimester of pregnancy and during the lactation period, the pig should concentrate on the raw material to match the green material. The coarse material can be fed without feeding, and the feed can be fed 3 times a day. Add 1-1.5% baking soda, 0.3% salt.
Third, the production of sows in the summer delivery room should be selected well shaded shading facilities. The production mothers should reduce the amount of concentrates and feed more green materials 2-3 days before the onset of labor. The proportion of bran in the concentrate should be increased to prevent constipation in the intestine, prevent dystocia, avoid postpartum feeding, and lack of milk. After feeding, feed bran warm salt water once.
Fourth, commodity pigs are difficult to raise during the high temperature season, often appear inverted not eating, affecting growth. Generally, fat pigs are sold before the high temperature season. If they are not sold, the stocking density should be reduced, and a few heads per lap should be kept. Each pig occupies a circle area of ​​1-1.2 square meters. Spray water cooling, feeding sooner or later, feeding green or thin material at noon, add baking soda 1.5%, salt 0.3%.
5. Suckling piglets and piglets prefer lying and wet ground, pay attention to changes in the weather to prevent cold pulling or diarrhea. Keep the dough dry, for clean drinking water, often disinfection. Prevention can be used per kilogram of pig feed plus 120 milligrams of oxytetracycline for several days and several days of treatment, and oxytetracycline 200 milligrams per kilogram.
Heat Stroke Prevention: First, move the affected pigs to a cool, ventilated place and spray cold water on the head and body. Cut off the tail to cut ear and blood. At the same time, take medication. The following measures can be used.
1, chlorpromazine 2-3 ml per kilogram of body weight is more than 2-6 ml, mixed intramuscular injection 3 times a day.
2, camphorsulfonic acid sodium 5-10 ml, or sodium plus 2-10 ml an intramuscular injection.
3, intravenous saline 250-500 ml and enema with saline.
4, coma cases, available ginger juice or garlic juice nasal drops.
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