ABSTRACT. The objective of this study was to obtain annual odor emission profiles from different swine production buildings.
Odor emissions were measured from two gestation, two farrowing, four nursery, and three finishing rooms. The measurements
were taken monthly from March to November 2003 and in January and March 2004. The results showed that odor
concentrations from all types of swine barns varied over the year (P < 0.05); the odor concentrations were high in winter
and low in summer and were related to ambient temperature (P < 0.01). Odor emission rates also varied significantly
throughout the year (P < 0.05) but did not show a seasonal pattern and were not affected by ambient temperature (P > 0.05).
Odor concentration was highest in the nursery rooms, followed by the finishing, farrowing, and gestation rooms. Odor
emission rates were highest from the finishing rooms, followed by the nursery, farrowing, and gestation rooms. Odor
concentrations could be predicted by regression equations using ambient and room temperatures and animal units (r2 = 0.58
to 0.67), except for the nursery rooms. Animal density (kg/m2) in the nursery and finishing rooms had no significant effect
on odor concentrations and emission rates (P > 0.05).
ABSTRACT. The objective of this study was to obtain annual odor emission profiles from different swine production buildings.Odor emissions were measured from two gestation, two farrowing, four nursery, and three finishing rooms. The measurementswere taken monthly from March to November 2003 and in January and March 2004. The results showed that odorconcentrations from all types of swine barns varied over the year (P < 0.05); the odor concentrations were high in winterand low in summer and were related to ambient temperature (P < 0.01). Odor emission rates also varied significantlythroughout the year (P < 0.05) but did not show a seasonal pattern and were not affected by ambient temperature (P > 0.05).Odor concentration was highest in the nursery rooms, followed by the finishing, farrowing, and gestation rooms. Odoremission rates were highest from the finishing rooms, followed by the nursery, farrowing, and gestation rooms. Odorconcentrations could be predicted by regression equations using ambient and room temperatures and animal units (r2 = 0.58to 0.67), except for the nursery rooms. Animal density (kg/m2) in the nursery and finishing rooms had no significant effecton odor concentrations and emission rates (P > 0.05).
การแปล กรุณารอสักครู่..
