Pigs have "five fear"

One is cold. The suitable growth temperature for pigs was 32°C~35°C for newborn pigs, 20°C~22°C for nursery pigs, and 15°C~20°C for medium and large pigs. The effect of low temperature on pig growth and weight gain is more serious. When the temperature of the pig house is lower than the lower limit of the suitable temperature, the daily weight gain decreases by 17.8 g for each 1 °C decrease; if the temperature decreases below 4 °C, the weight gain rate decreases by 50%. Increase feed consumption by more than double. Therefore, the winter barn should be strengthened to keep warm, reduce the metabolic consumption of pigs and improve the feeding efficiency.

Second, afraid of cold. Winter drinking water and feed temperature have a close relationship with pig growth and health. When the water temperature and material temperature are 0°C, the temperature of the water and the material is raised to a body temperature of 39°C, and the pig body consumes 682 to 878 kcal of heat energy, which means that 0.5 to 0.75 kg of concentrate feed per day is used. Consumptively consumed to maintain body temperature. Therefore, it is better to feed warm and warm water for piglets and sows in winter. The water temperature is maintained at about 37°C.

Three afraid of the tide. When the ambient temperature is low, the relative humidity is high, which seriously affects the pig's production performance, especially the piglets. Piglets in pig houses with high relative humidity in winter have an average weight gain of about 48% lower than that of the control group, and are prone to diseases such as diarrhea and enteritis. The suitable growth humidity for different pigs was 50%-70% for piglets, 70% for finishing pigs with 40-80kg, 80% for finishing pigs with 80-110kg, and 55%-80% for breeding sows. Houses can be dampened and kept dry by measures such as ventilation, increased light, warming and bedding.

Four are afraid of illness. If the pig house is cold in winter, has high humidity, poor sanitation, and poor ventilation, the pig is susceptible to disease. Therefore, we must strengthen the feeding and management, keep the ventilation and cleanliness of the pens, clean and dry, and regularly disinfect the pens, it is best to use the flame disinfection method. At the same time to achieve "five observations", that is, the concept of form, view of the spirit, view of food intake, observation of excrement, observation of breathing, once the pig disease should be diagnosed in time, as soon as possible isolation treatment.

Five afraid of the wind. Pigs in the winter are most afraid of "dragon style" and "thief wind", not only reduce the temperature, but also more easily cause swine cold, stroke, rheumatism and other diseases. The pig house in winter must block wind tunnels, hang straw curtains, paste windows, close doors and windows, prevent rat holes, cracks, gaps, broken tops, door edges, window seams, etc. in the circle from blowing into the “thief wind”, affecting normal pigs. Growth and development.

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