References

• ANDERSON, D. P., BEARD, C. W. and HANSON, R. P. (1964a). The adverse effects of ammonia on chickens including resistance to infection with Newcastle disease virus. Avian Research 8: 369.
   Web of Science ®Google Scholar
• ANDERSON, D. P., CHERMS, F. L. and HANSON, R. P. (1964b). Studies on measuring the environment of turkeys raised in confinement. Poultry Science 43: 305.
   Web of Science ®Google Scholar
• ALVARES, A. P., HARBERS, L. H. and VISEK, W. J. (1964). Effect of barbuturic acid chlortetracycline and carbohydrates upon growth and gastro intestinal urease activity of chicks. Journal of Nutrition 82: 93.
   PubMed Web of Science ®Google Scholar
• ARAFA, A. S., MILES, R. D., HARMS, R. H. CHEN, T. C., DILWORTH, B. C., DAY, E. J., ROSOMER, G. L., DIFATE, B. C. and SHAVER, K. J. (1979). Fungistatic compounds in broiler production (4) Microbial and physical characteristics of litter. Poultry Science 58: 1462.
   Web of Science ®Google Scholar
• BACHARACH, U. (1957). The aerobic breakdown of uric acid by certain pseudomonads. Journal of General Microbiology 17: 1.
   PubMedGoogle Scholar
• BACON, C. W. and BURDICK, D. (1977). Growth of fungi in broiler houses. Poultry Science 56: 653.
   Web of Science ®Google Scholar
• BULLIS, K. L., SNOEYENBOS, G. H. and ROEKEL, H. Van (1950). A keratoconjunctivitis in chickens. Poultry Science 29: 386.
   Web of Science ®Google Scholar
• BURNETT, W. E. and DONDERO, N. C. (1969). Microbial and chemical changes in poultry manure associated with decomposition and odour generation. Animal Waste Management, Cornell University Conference on Agricultural Waste Management, page 271.
   Google Scholar
• CARNAGHAN, R. B. A. (1958). Keratoconjunctivitis in broiler chickens. Veterinary Record 70(2): 35.
   Google Scholar
• CAVENY, D. D., QUARLES, C. L. and GREATHOUSE, G. A. (1981). Atmospheric ammonia and broiler cockerel performance. Poultry Science 60: 513.
   Web of Science ®Google Scholar
• CHARLES, D. R. and PAYNE, C. G. (1966a). The influence of graded levels of atmospheric ammonia on chickens. 1. The effects on respiration and on the performance of broilers and replacement stock. British Poultry Science 7: 177.
   PubMedGoogle Scholar
• CHARLES, D. R. and PAYNE, C. G. (1966b). The influence of graded levels of atmospheric ammonia on chicks. 2. Effects on the performance of laying hens. British Poultry Science 7: 189.
   PubMedGoogle Scholar
• COTTERILL, O. and NORDSOG, A. W. (1954). Influence of ammonia on egg white quality. Poultry Science 33: 432.
   Web of Science ®Google Scholar
• DALHAM, T. (1956). Mucus flow and ciliary activity in the trachea of healthy rats and rats exposed to respiratory irritant gases. Acta Physiologie Scandinavia (Supplement 123) 36: 1.
   Web of Science ®Google Scholar
• DENNIS, C. and GEE, J. M. (1973). The microbial flora of broiler house litter and dust. Journal of General Microbiology 78: 101.
   Google Scholar
• DILWORTH, B. C., CHEN, T. C., DAY, E. J., MILES, R. D., ARAFA, A. S., HARMS, R. H., ROSOMER, G. L., DIFATE, V. G. and SHAVER, K. J. (1979). Fungistatic compounds in broiler production. 1. Effect on rate of gain and feed utilisation. Poultry Science 58: 1445.
   Web of Science ®Google Scholar
• IVOS, J., ASAJ, A., MARJANOVIC, L. J. and MADZIROV, Z. (1966). A contribution to the hygiene of deep litter in the chicken house. Poultry Science 45: 676.
   Web of Science ®Google Scholar
• JOHNSTON, N. L., QUARLES, C. L., FAGERBERG, D. J. and CAVENY, D. D. (1981). Evaluation of yucca saponin on performance and ammonia suppression. Poultry Science 60: 2289.
   Web of Science ®Google Scholar
• JOHNSTON, N. L., QUARLES, C. L. and FAGERBERG, D. J. (1982). Broiler performance with DSS 40 yucca saponin in combination with Monensin. Poultry Science 61: 1052.
   Web of Science ®Google Scholar
• KITAI, K. and ARAKAWA, A. (1979). Effect of antibiotics and caprylohydrozamic acid on ammonia gas from chicken excreta. British Poultry Science 20: 55.
   Web of Science ®Google Scholar
• KLING, H. F. and QUARLES, C. L. (1974). Effect of atmospheric ammonia and the stress of infectious bronchitis vaccination on Leghorn males. Poultry Science 53: 1161.
   PubMed Web of Science ®Google Scholar
• KOELLIKER, J. K., NAKAUE, H. S., HELLICKSON, M. L. and MINER, J. R. (1978). Improving poultry house environements with zeolite. American Society of Agricultural Engineering, Technical Paper Number 78, page 4044.
   Google Scholar
• LANCASTER, J. E. and CRABB, W. E. (1953). Studies on disinfection of eggs and incubators. 2. The value of formaldehyde gas with particular reference to the concentration resulting from the addition of formalin to potassium permanganate. British Veterinary Journal 109: 390.
   Google Scholar
• LANCASTER, J. E., GORDON, R. F. and HARRY, E. G. (1954). Studies on disinfection of eggs and incubators. 3. The use of formaldehyde at room temperature for fumigation of eggs prior to incubation. British Veterinary Journal 110: 238.
   Google Scholar
• LOVETT, J. R., MESSER, J. W. and READ Jnr., R. B., (1971). The microflora of Southern Ohio poultry litter. Poultry Science 50(3): 746.
   Web of Science ®Google Scholar
• MOUM, S. G., SELTZER, W. and GOLDHAFT, T. M. (1969). A simple method of determining concentrations of ammonia in animal quarters. Poultry Science 48: 347.
   Web of Science ®Google Scholar
• MUMPTON, F. A. and FISHMAN, P. H. (1977). The application of natural zeolites in animal science and aquaculture. Journal of Animal Science 45: 1188.
   Web of Science ®Google Scholar
• NAGARAJA, K. V. (1982). Ammonia caused E coli congestion. Feedstuffs 54(11): 14.
   Google Scholar
• NAKAUE, H., S. and KOELLIKER, J. K. (1981). Studies with clinoptilolite in poultry. 1. Effect of feeding varying levels of clinoptilolite (zeolite) to dwarf single comb white Leghorn pullets and ammonia production. Poultry Science 60: 944.
   Web of Science ®Google Scholar
• NAKAUE, H. S., KOELLIKER, J. K. and PIERSON, M. L. (1981). Studies with clinoptilolite in poultry, 2. Effect of feeding broilers and the direct application of clinoptilolite (zeolite) on clean and re-used broiler litter on broiler performance and house environment. Poultry Science 60: 1221.
   Web of Science ®Google Scholar
• PARKHURST, C. R., HAMILTON, P. B. and BAUGHMAN, G. R. (1974). The use of volatile fatty acids for the control of micro organisms in pine sawdust litter. Poultry Science 53(2): 801.
   Web of Science ®Google Scholar
• QUARLES, C. L. and CAVENY, D. D. (1979). Effect of air contaminants on performance and quality of broilers. Poultry Science 58: 543.
   Web of Science ®Google Scholar
• QUARLES, C. L. and KLING, H. F. (1974). Evaluation of ammonia and infectious bronchitis vaccination stress on broiler performance and carcase quality. Poultry Science 53: 1592.
   Web of Science ®Google Scholar
• REECE, F. N., BATES, B. J. and LOTT, B. D. (1979). Ammonia control in broiler houses. Poultry Science 58(3): 754.
   Web of Science ®Google Scholar
• REECE, F. N., LOTT, B. D. and DEATON, J. W. (1980). Ammonia in the atmosphere during brooding affects performance of broiler chicks. Poultry Science 59: 486.
   Web of Science ®Google Scholar
• ROUF, M. A. and LOMPREY Jnr., R. F. (1968). Degradation of uric acid by certain aerobic bacteria. Journal of Bacteriology 96(3): 617.
   Web of Science ®Google Scholar
• SCHEFFERLE, H. E. (1965). The decomposition of uric acid in built up poultry litter. Journal of Applied Bacteriology 28: 412.
   PubMedGoogle Scholar
• SELTZER, W., MOUM, S. G. and GOLDHAFT, T. M. (1969). A method for the treatment of animal wastes to control ammonia and other odours. Poultry Science 48: 1912.
   PubMed Web of Science ®Google Scholar
• SMITH, R. (1980). Yucca saponin explained as “that” deamoniant. Feedingstuffs 52(5): 20.
   Google Scholar
• SWENBERG, J. A., KERUS, W. D., MITCHELL, R., GRALLA, E. J. and PAVKOV, K. L. (1980). Induction of squamous cell carcinomas of the rat nasal cavity by inhalation of formaldehyde gas. Cancer Research 40: 3398.
   PubMed Web of Science ®Google Scholar
• TORH, K. (1974). Utilisation of sedimentary zeolites in Japan. Aminal Science 45(3): 1188.
   Google Scholar
• VALENTINE, H. (1964). A study of the effect of different ventilation rates on the ammonia concentrations in the atmosphere of broiler houses. British Poutry Science 5: 149.
   Google Scholar
• VELOSO, J. R., HAMILTON, P. B. and PARKHURST, C. R. (1974). The use of formaldehyde flakes as an antimicrobial agent in built up poultry litter. Poultry Science 53: 78.
   PubMed Web of Science ®Google Scholar
• VOGELS, G. D. and VAN DER DRIFT, C. (1976). Degradation of purines and pyrimidines by micro-organisms. Bacteriological Reviews 40: 403.
   PubMedGoogle Scholar