Formation of chemical contamination in cattle and pig farms of various sizes and with different animal housing and manure handling technologies
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CONTRIBUTORS:
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JOURNAL:
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Animal Husbandry: Scientific Articles,
41(??),
91 -
100.
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YEAR:
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2002
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PUB TYPE:
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Journal Article
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SUBJECT(S):
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ammonia, concentration, pollution, emission, cattle, pigs
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DISCIPLINE:
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Agricultural and Food Sciences
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HTTP:
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LANGUAGE:
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Lithuanian
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PUB ID:
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103-442-646
(Last edited on
2008/05/19 03:12:12 GMT-6)
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SPONSOR(S):
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ABSTRACT:
Lower concentration of ammonia in the air does not reduce emission into the environment. In this case, the amount of ammonia emitted from the surface area unit should be evaluated.
The study indicated that ammonia nitrogen (NH3-N) emission from the surface of the manure conveyor in the stanchion house was highest and amounted to 98.1 mg/m2/h. Under the loose housing system, the highest NH3-N emission was registered from the stalls of cows, calves and heifers, respectively, 58.7; 68.3 and 88.8 mg/m2/h. Deep litter housing of pigs resulted in higher NH3-N emission that amounted to 70.0 and 75.5 mg/m2/h from, respectively, the floor surface in the pens of sows and weaned piglets. However, ammonia emission from the pens of weaned (and housed without bedding) and fattening pigs was, respectively, 59.3 and 65.1 mg/m2/h. Conclusions are done, that highest intensity of ammonia emission was in the zones of manure and slurry handling and the lowest in the zone of feed delivery.
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