Abstract
Male chicks (1 day old; Vantress × Arbor Acre) were fed a basal folic acid-deficient diet, a 5% uric acid-containing diet with and without 5 mg/lb (453.5 g) of bacitracin and 20 mg/lb of sodium penicillin G, the basal diet supplemented with only the antibiotics, and the basal diet plus 500 μg/lb of folic acid. The chicks were reared in a room which had not been used previously for housing chickens (“new” environment). Bacteriological analyses of the contents of the small intestine revealed a decrease in numbers of streptococci and “anaerobic” bacteria in the chicks receiving dietary antibiotics. No persistent changes were seen in the numbers of coliform bacteria. Lactobacilli were not detected in any of the groups until 3 weeks after feeding.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- BARE L. N., WISEMAN R. F., ABBOTT O. J. EFFECT OF DIETARY ANTIBIOTICS UPON COLIFORM BACTERIA AND LACTOBACILLI IN THE INTESTINAL TRACT OF URIC ACID-FED CHICKS. J Bacteriol. 1964 Feb;87:329–331. doi: 10.1128/jb.87.2.329-331.1964. [DOI] [PMC free article] [PubMed] [Google Scholar]
- BENTON D. A., ELVEHJEM C. A., HARPER A. E., SARLES W. B., WISEMAN R. F. Effects of dietary antibiotics upon numbers and kinds of intestinal bacteria in chicks. J Bacteriol. 1956 Nov;72(5):723–724. doi: 10.1128/jb.72.5.723-724.1956. [DOI] [PMC free article] [PubMed] [Google Scholar]
- HARRISON A. P., Jr, HANSEN P. A. The bacterial flora of the cecal feces of healthy turkeys. J Bacteriol. 1950 Feb;59(2):197–210. doi: 10.1128/jb.59.2.197-210.1950. [DOI] [PMC free article] [PubMed] [Google Scholar]
- RHODES R. A., SARLES W. B., MONSON W. J., HARPER A. E., ELVEHJEM C. A. Stimulation and inhibition by antibiotics of intestinal bacteria in chicks. J Nutr. 1954 Jun 10;53(2):289–302. doi: 10.1093/jn/53.2.289. [DOI] [PubMed] [Google Scholar]
- ROGOSA M., MITCHELL J. A., WISEMAN R. F. A selective medium for the isolation and enumeration of oral and fecal lactobacilli. J Bacteriol. 1951 Jul;62(1):132–133. doi: 10.1128/jb.62.1.132-133.1951. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shapiro S. K., Sarles W. B. MICROORGANISMS IN THE INTESTINAL TRACT OF NORMAL CHICKENS. J Bacteriol. 1949 Oct;58(4):531–544. doi: 10.1128/jb.58.4.531-544.1949. [DOI] [PMC free article] [PubMed] [Google Scholar]
- WISEMAN R. F., SARLES W. B. A plating technique for screening intestinal coliform bacteria. J Bacteriol. 1956 Apr;71(4):480–481. doi: 10.1128/jb.71.4.480-481.1956. [DOI] [PMC free article] [PubMed] [Google Scholar]