The Importance of Ventilation in Broiler Breeding
1. While maintaining the proper temperature of the house, good ventilation is extremely important. The life activities of broilers are inseparable from oxygen. Adequate oxygen can promote the metabolism of chickens, maintain the health of chickens, and increase feed conversion.
2, good ventilation can drain moisture, ammonia, dust and excess heat, to provide enough fresh air for the flock. Poor ventilation and high ammonia concentrations can cause serious losses in production.
3. In production, many breeders often only pay attention to temperature and neglect ventilation in the early stages of brooding. In severe cases, they cause increased broiler ascites in the middle and later stages. Poor ventilation during the second, third and fourth weeks may increase the incidence of chronic respiratory diseases and E. coli in chickens. In the mid and late broilers, the demand for oxygen is continuously increasing, and the amount of excrement is increasing. The amount of ventilation and ventilation must be increased on the basis of maintaining the appropriate temperature. At this time, ventilation and ventilation are the main means to maintain the normal environment.
4. The late management of broiler production should focus on ventilation and ventilation. As broilers are large in size, feed intake, and excretion, their exhaled carbon dioxide, body heat released, excreted water, ammonia produced by accumulated chicken manure and plankton in the air Dust, etc., if it cannot be discharged in a timely manner, the living environment in the house will become more and more severe, which will not only seriously affect the growth rate of broilers, but also increase the mortality rate of broilers. In the later period of broiler rearing, the body weight can almost increase by about 1.4 per day, and the death of one will cost about 20 yuan. The importance of late-stage management to improving economic efficiency is self-evident.
5. Misunderstanding of farmers
Under the premise of heat preservation, there is such a misunderstanding that it is not able to ventilate, especially at the age of three weeks, it is fearful that chickens catch cold and catch cold, neglecting the ventilation and ventilation, resulting in serious violation of the harmful gas in the chicken house, large amounts of ammonia, and vulcanization. Hydrogen and other harmful gases stimulate the chicken's respiratory epithelial mucosal cells. Cause mucosal cells damage, respiratory epithelial cells have the first gateway to prevent viruses and bacteria from invading the body, or mucosal immune host, played a crucial role in the entire disease prevention system. If it is damaged due to insufficient ventilation, that is, the door of the body's respiratory defense system is opened, the bacteria and viruses will be reproduced in large numbers by reproduction, transmitted to various organs through the circulation of blood, and the chickens will have infectious diseases. . In addition, because the epithelial cells of the respiratory tract are damaged, our vaccines will encounter immunosuppression when they produce antibody titers. Without good antibody titers, the body can also protect against viral diseases.
6, to master the method of ventilation, to form the flow of gas, harmful gases are generally more concentrated than the air above the chicken house, so we have to take this feature and take the convection method of ventilation. That is to open the two sides of the window into the fresh air harmful gases discharged from the ventilation vents above, and to avoid the thief wind, when the thief wind directly blow the chicken's abdomen, to increase the temperature while ventilation, do not lick that point of coal money, only Only by improving the environment of the sheds can we make the chickens less susceptible to disease, and it can be cured after the onset.
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