A preliminary study on the intestinal flora of cecum and colon of eight, ten and 12 week old swine.

Using a replica-plating method and differential culture media, members of the Enterobacteriaceae and Pseudomonaceae were determined quantitatively in the colon and cecum content of pigs from different litters, born on the same farm and kept under the same environmental conditions, from the age of six weeks. The bacterial flora in pigs of eight, ten and 12 weeks of age showed little significant quantitative variation. Pigs of 12 weeks of age differed significantly from younger ones with respect to Aeromonas, Edwardsiella, staphylococci and molds. The existence of a variable flora is underlined as well as the fact that Vibrio coli represents an important member of the intestinal flora at that age. No significant variation in the pH of the chyme of the colon and cecum was recorded.

[1]  R. S. Roy,et al.  A simple procedure for the preliminary identification of aerobic gram negative intestinal bacteria with special reference to the Enterobacteriaceae. , 1973, Canadian journal of comparative medicine : Revue canadienne de medecine comparee.

[2]  R. Wescott,et al.  Influence of age and rations on fecal microflora of Hormel miniature swine. , 1971, American Journal of Veterinary Research.

[3]  D. Taylor,et al.  Spirochaetal invasion of the colonic epithelium in swine dysentery. , 1971, Research in veterinary science.

[4]  E. Slosberg,et al.  Slide impregnation method for Treponema pallidum and other spirochetes. , 1970, Laboratory practice.

[5]  R. Fuller,et al.  Quantitative Studies on Some of the Gram‐negative Anaerobic Bacteria in the Pig Alimentary Tract , 1964 .

[6]  H. Smith,et al.  OBSERVATIONS ON THE ALIMENTARY TRACT AND ITS BACTERIAL FLORA IN HEALTHY AND DISEASED PIGS. , 1963, The Journal of pathology and bacteriology.

[7]  H. Smith,et al.  The fæcal bacterial flora of animals and man: Its development in the young , 1961 .

[8]  C. A. Briggs,et al.  The normal intestinal flora of the pig. IV. The effect of dietary supplements of penicillin, chlortetracycline or copper sulphate on the faecal flora. , 1960 .

[9]  L. Lison.  Statistique appliquée à la biologie expérimentale : la planification de l'expérience et l'analyse des résultats , 1960 .

[10]  H. W. Seeley,et al.  Microflora of Intestinal Contents and Feces of Pigs Fed Different Diets Including Pigs Showing Parakeratosis , 1958 .

[11]  E. G. Hill,et al.  The Intestinal Microflora of Young Swine Obtained by Hysterectomy , 1955 .

[12]  C. A. Briggs,et al.  THE NORMAL INTESTINAL FLORA OF THE PIG II. QUANTITATIVE BACTERIOLOGICAL STUDIES , 1955 .

[13]  L. Quinn,et al.  Effect of antibiotics on the growth rate and intestinal flora of swine. , 1953, Antibiotics and Chemotherapy.

[14]  R. Hewlett.  A Manual of Determinative Bacteriology , 1902, Nature.