In recent years, pigs have gradually grown to scale and intensive, but in some large-scale pig farms, winter one-sided emphasis on insulation, resulting in the accumulation of pig manure, feed mat grass fermentation, even decomposition, internal ammonia, curing Harmful gases such as hydrogen and carbonic acid gas are severely exceeded, causing pigs to have reduced appetite, slow growth, or gasping, coughing, and even bronchitis, pneumonia, diarrhea, and eye diseases. Mortality is greatly increased, seriously affecting the benefits of pig breeding in winter. In order to keep pigs safe for the winter, the following measures should be taken.

Reasonable heat preservation, improving pig house temperature and air In addition to adopting special insulation measures for the piglets, other pig houses should be closed, bedding added, and strict protection against thieves wind can achieve insulation effect. However, at the same time as insulation, appropriate ventilation and ventilation measures must be taken to improve the humidity and air in the pig house. The ventilation method can open an active ventilation hole on the roof of the pig house ceiling, constantly changing into fresh air, and taking away damp odors and harmful gases. It should be noted that the ventilation should be moderated, with good weather and high ventilation, cold weather and less ventilation, so that ventilation and insulation can be reasonably adjusted.

To do a good job in sanitation, timely removal of manure scale pigs should generally build a stadium outside the home. Take care of food and accommodation, home excrement and urine excretion, teach pigs from childhood to develop a good habit of regular fixed-point excretion of urine. Especially in the winter, pay attention to the pigs rushing to the house to excrete urine before feeding, etc., and then feed them after they are finished. After forming habits, pigs will consciously defecate urine. At the same time, it is necessary to maintain the regular removal of feces 2-3 times a day to reduce the pollution of ammonia.

Scientific breeding, to reduce the production of bad gas in accordance with the nutritional needs of pigs with feed, but also in accordance with the timely adjustment of feed formulations. Because, the root cause of pig urine odor is feed nutrition is too high, the pig can not absorb, gastrointestinal indigestion. At reasonable nutrient levels, 2%-3% talc or bentonite can be added to the feed to reduce pig urine odor. At the same time, it is necessary to use mat grass to absorb moisture and odor, and timely replacement.

Prevention of gastro-intestinal diseases Gastrointestinal diseases in pigs can cause diarrhea, diarrhea, and dehydration in pigs, causing unpleasant odor in feces, resulting in environmental pollution and odor pollution in pig houses. Therefore, we must grasp the law of the onset of gastrointestinal diseases in pigs, pay close attention to the eating and digestion of pigs, and prevent the occurrence of gastrointestinal diseases in a timely manner. According to the regularity of the susceptibility stage of pig disease, preventive administration, such as injection of E. coli genetically engineered seedlings 20 days prior to sow sow, to prevent yellow pigs, fairfly disease, or injection of 0.1% selenium in the sows about 20 days before delivery Sodium 5ml, 1 tablet of neomycin taken 8 hours after the birth of the piglets to prevent the diarrhea of ​​newborn pigs, regular deworming, and prevention of parasite diarrhea. At the same time, we must also regularly sterilize the barracks and provide enough clean drinking water.

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