Environmental conditions and energy use were evaluated in a new segregated early weaning (SEW) swine nursery for 9 months. Energy use and air quality were generally acceptable and followed expected trends. Mean electricity use ranged from 27 to 32 kWh.day -1. Mean fuel gas use ranged from 30 to 40 m3 natural gas·day -1. Ranges for total, respirable, and inhalable dust concentra tions were 0.50-3.13, 0.03-0.40, and 0.18-2.98 mg·m-3, respectively. Carbon dioxide concentrations ranged from 1,144 to 2,614 ppm. Ammonia concentra tion was negligible (< 1 ppm) throughout the study.
Esmay ML: Principles of animal environment. AVI Publishing, Westport, 1978.
2.
Ashrae: ASHRAE Handbook of Fundamentals. Atlanta, Am Soc Heating; Refrigerating and Air Conditioning Engineers, 1993.
3.
Donham KJ: Health hazards of air in swine buildings: State of the art. Proc Am Assoc Swine Practitioners, Indianapolis, 1987.
4.
Riskowski GL, Maghirang RG, Funk TL, Christianson LL, Priest JB: Environmental quality in animal housing facilities - a review and evaluation of alternative ventilation strategies. Final report to the American Society of Heating Refrigeration and Air Conditioning Engineers, Atlanta, 1995.
5.
Priest JB, Zhu J., Maghirang RG, Christianson LL, Riskowski GL: Agricultural Environments and Their Effects on Animal, Plants, Workers and the Structure. ASAE Paper No. 94-4084. St. Joseph, American Society of Agricultural Engineers, 1994.
6.
Clark S., Rylander R., Larsson L.: Airborne bacteria, endotoxin and fungi in dust in poultry and swine confinement buildings. Am Indust HygAssoc J1983;44:537-541.
7.
Hartung J.: The effect of airborne particulate on livestock health and production; in Dewi I Ap, Axford RFE, Fayez I, Marai M, Ohmed H (eds): Pollution in Livestock Production Systems. Wallingford, CAB International, 1994.
8.
Harry EG: Air pollution in farm buildings and methods of control: A review. Avian Pathol1978;7:441-454.
9.
Hellmers B.: Todesursache bei Schweinen; unpubl MS thesis. Hannover ; HannoverSchool of Medicine , 1986.
10.
Riskowski GL, Maghirang RG, Funk TL, Christianson LL, Priest JB: Environmental quality in animal production facilities - a review and evaluation of alternative ventilation strategies. ASHRAE Trans, in press.
11.
Maghirang RG, Puma MC: Airborne and settled dust levels in a swine house. ASHRAE Trans, in press.
12.
Maghirang RG, Puma MC, Liu Y., Clark P.: Dust concentration and particle size distribution in an enclosed swine nursery. TransASAE1997;40:749-754.
13.
Carpenter GA: Use of air samplers to measure total dust weight in early-weaner flatdeck rooms; in Wathes CM, Randall J (eds): Aerosol Sampling in Animal Houses. Luxembourg, Office for Official Publications of the European Communities, 1989, pp 33-37.
14.
Donham KJ, Haglind P., Peterson Y., Rylander R., Belin L.: Environmental and health studies of farm workers in Swedish swine confinement buildings. Br J Indust Med1989;46:31-37.
15.
Nutrient Requirements of Swine, ed 9. Washington, National Academy Press , 1988.
16.
Acgih: 1993-94 Threshold limit values and biological exposure indices: American Conference of Governmental Industrial Hygienists, Cincinnati, 1993.
17.
SAS/STAT® User's Guide, ed 4, version 6. SAS Inst. Inc., Cary, 1990.
18.
Kuo J., Fox E.: Sigmaplot User's Manual. San Rafael, Jandel Scientific, 1993.
19.
Aherne F., Hogberg MG, Kornegay ET, Shurson GC: Management and nutrition of the newly weaned pig. PIH-III, Pork Industry Handbook . West Lafayette, Purdue University , 1993.
20.
Murphy JP: Designing the early-wean nursery. National Hog Farmer Blueprint Series for Top Managers, 1994, vol 19, pp 40-41, 44-45.
21.
Harmon JD, Yin H., Shao J.: Evaluation of the Thermal Needs of the Early Weaned Pigs. ASAE Paper No. 96-4085 . St. Joseph, American Society of Agricultural Engineers, 1996.
22.
Donham KJ, Reynolds SJ, Witten P., Merchant JA, Poppendorf WJ: Respiratory dysfunction in swine production facility workers: Dose-response relationships of environmental exposures and pulmonary function. Am J Indust Med1995;27:405-418.
