The application of ammonia gas detector in the aquaculture industry chain has become more and more extensive with the expansion of domestic aquaculture scale.
Chicken industry:
Effects of ammonia gas in chicken coops on chickens. Since a large amount of ammonia gas is produced in chicken manure, when the ammonia gas in the chicken house air reaches 20ppm (equivalent to 15.2mg/m3) for more than 6 weeks, it will cause chicken lung congestion, edema, loss of appetite of chickens, and egg production. If it reaches 50ppm, chickens will develop laryngeal edema, necrotizing bronchitis, pulmonary hemorrhage, reduce respiratory rate, and die after a few days. Therefore, the ammonia concentration in the air of the chicken house is required to be controlled below 20ppm.
Pig industry:
On September 2, 2005, a return visit was made to the farm whose scale was 1,200 sows before the installation of deodorizing pipes, and the mortality rate of diseases such as multisystem failure syndrome in weaning pigs reached 40%. From one month after the deodorant pipe was installed, the monthly diarrhea density of pigs decreased, the waste and death rate also began to gradually decrease, and the growth rate also began to accelerate. In 2006, 25,000 slaughtered, and in 2007, 30,000 slaughtered, and now the total death rate is less than 5%. The average slaughter weight in Japan is 110kg. Now the farm is raised to 165 days, and it will be slaughtered in 180 days at most. The ammonia gas index in all pig pens in this farm is below 10ppm. The results of ammonia measurement in pig pens are: the index of closed piglet pen is 10ppm, and the index of other pig pen is 5~7ppm, and there is almost no smell. . PS: The maximum allowable value of ammonia gas certified by the National Institute of Occupational Safety and Health is 11ppm. Based on the safe use standard of toxic gas, the staff of the institute came to the index of ammonia gas for pigs according to the maximum standard of whether it affects the growth and health of pigs and the health zone of the workers in the pigpen. It is 11ppm, the staff is 7ppm, the index of carbon dioxide is 1500ppm, and the particle index is 1.23mg/m3.
In recent years, domestic pig farms are facing the continuous expansion of the breeding scale, and it is difficult to reduce the stocking density, facing the pressure of environmental protection (a large amount of feces, urine and wastewater odor needs to be properly discharged) and frequent respiratory diseases, etc., and more and more. Tricky, complete reliance on drugs and vaccines cannot solve major disease problems. At present, many experts and pig farm owners are paying more and more attention to improving the breeding environment, and at the same time, they have a clearer understanding of the threat of harmful gases such as ammonia, especially large ones. Medium-scale pig farms are indeed faced with these urgent problems that need to be solved. In the face of this problem, Shenzhen Dongri Yingneng Technology has launched a new type of ammonia gas detector for farms after intensive research. This ammonia gas detector The price of the instrument is reasonable, which solves the headache of the pig farm owner.
The harm caused by ammonia gas to pig farms may be far beyond our imagination, including adverse effects on the growth and development of pigs, respiratory resistance, estrus, pregnancy and childbirth and other reproductive links. Because of this, developed countries such as Europe and the United States have long been Pig farms are required to strictly control the ammonia gas in the house, the EU requires it to be controlled below 10PPM, and the United States requires it to be controlled below 15PPM. Decomposition, in the colder seasons (winter and spring), in the maternity room and the nursery that are closed for heat preservation, a large amount of ammonia, hydrogen sulfide and carbon dioxide are produced every day, and they continue to accumulate in the house, and the concentration gradually increases. , especially dangerous
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