With the advent of summer, the temperature rises, the humidity becomes large, and pigs are susceptible to disease. Therefore, the environmental temperature of the pig house must be controlled, and the heatstroke prevention and cooling work must be strengthened to ensure that the live pigs are safer over the summer and the pig raising efficiency is improved. Summer pigs should pay attention to the following points:
First, keep clean
Summer is the peak season for mosquitoes and flies, which not only causes the poor production environment of the pig farm, but also brings difficulties to disease prevention on the farm. Therefore, it is recommended that Huaxia Swine Network regularly sterilize the inside and outside environment of the pig house, including the barn, venues and utensils, equipment, as well as drainage channels, air and sow's entire body surface. It should also pay attention to the disinfection of some sanitary corners.
At the same time, we must pay attention to the disinfection of empty columns, complete empty columns, and adhere to the principle of "all in all". The use of a wide range of disinfectant types that are suitable for a wide range of environments, such as chlorine preparations, etc.; sufficient sunlight in the summer can cause some disinfectants to quickly decompose and fail, such as povidone iodine, complex iodine, etc. should not be used outdoors.
Second, improve the environment
Reduce the proportion of cement floor in the farm to reduce the ground temperature. Increasing the green area on the pig farm can reduce the ambient temperature of the pig house by 3-4°C and reduce the heat radiation by 80%. However, tall trees should not be suitable for a variety of purposes, affecting ventilation, and they will attract wild birds that are detrimental to disease prevention.
Third, scientific feeding
In summer, fresh green feeds rich in vitamins and minerals, skins such as watermelon rinds, etc. should be fed; seasonings such as salty, umami or aromas should be properly added to the mix to increase feed palatability and feed intake for pigs. Quantity, forbid to feed moldy feed. Feeding pigs in the summer can be fed four times a day. To reduce the pigs' activity during the hottest hours, they can be fed at 4 a.m., 10 a.m., 4 p.m., and 9 p.m. once each. Keep enough cool water in the trough. Every day, pigs should also drink 0.5% light salt water to regulate body temperature.
Fourth, safety and heatstroke
Pigs have low feed utilization and slow weight gain when the temperature rises above 35°C or falls to minus 5-10°C. The high temperature season should be based on different types of pigs and different physiological stages of the pig to give different feeding and management.
Boars: Feed twice a day. Feed green feed or thinner at noon. Breeding and sports are performed in the morning and evening. Don't spray water or spray cool water immediately after breeding. From 1 pm to 3 pm every day, water is sprayed on the pig body and the ground, and the light is reduced to 8-10 hours. If the number of breedings is small, the feed amount of the concentrate should be reduced to prevent excessive fertilizer and poor libido.
Pregnant sows: Avoid breeding in the hot season, sows in the pre-pregnancy (0-84 days) should be dominated by green coarse materials, with appropriate concentrates, to reduce the stocking density, raising 2-3 heads per round. 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.
Prenatal sows: The summer delivery room should have a litter bar with good ventilation and shade facilities. The production mothers should reduce their concentrates 2-3 days before delivery, and feed more green materials. The ratio of bran in the concentrates should be increased to prevent constipation in the bowels. 1. To prevent dystocia, 2. To avoid causing no postpartum feeding or lack of milk. After feeding, feed bran warm salt water once.
Commodity big pig: difficult to raise in high temperature season, often appear inverted not eating, affecting growth. Generally, fat pigs are sold before the high temperature season. If they are not for sale, 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. Water spray cooling, feed sooner or later, at noon plus green feed or thin material, the material plus sodium bicarbonate 1.5%, salt 0.3%.
Suckling piglets and piglets: hi lying on the wet ground, pay attention to changes in the weather to prevent cold pulling or diarrhea. Keep the dough dry, clean drinking water, often disinfected. Prevention can be used per kilogram of material plus 120 milligrams of oxytetracycline for several days and several days of treatment, with 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 about 2-6 ml, and after mixing, it is injected intramuscularly 3 times a day. 2. Camphor Sulfonate 5-10 ml, or sodium plus 2-10 ml intramuscularly. 3. Intravenous saline 250-500 ml, and enema with saline. 4. In coma cases, ginger or garlic juice can be used as a nasal instillation.
V. Security and epidemic prevention
In addition to immunization in accordance with the immunization program, in response to high-temperature seasonal disease, such as sow mebritis - mastitis - agalactia syndrome, yellow and white piglets, coccidiosis, toxoplasmosis, eperythrozoonosis, chlamydia and other diseases , we must also do a good job in prevention and control.
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