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agricultural watersheds; water pollution; Escherichia coli; Enterococcus; indicator species; feces; livestock; wild animals; population density; surface water; streams; Georgia
Abstract:
... The Upper Oconee watershed of Georgia is typical of the Piedmont and water quality is a key issue in the urbanization of this historically agricultural region. Fecal indicators may be found in higher numbers than regulatory targets and agricultural non-point sources are sometimes implicated. We enumerated E. coli and enterococci bacteria at 18 sites for 3 years (2200 observations) within the Upper ...
... A plating procedure simulating conditions in ripening Cheddar cheese was used to isolate microorganisms in young cheese that grow at ordinary ripening temperatures. Forty-one commercial cheese samples, most 7 days old, were obtained from ten Iowa manufacturing plants. Samples were plated in special Trypticase-soy agar, covered with 50 ml of 1.5% (w/v) agar, and incubated at 7.2 C for 3 months. Fol ...
... Four types of luncheon meats, bologna, chicken loaf, ham, and macaroni cheese, each manufactured by four different companies, were purchased from four major retail outlets in Ontario over a period of 16 weeks during the summer of 1975. Bacterial evaluation included determination of total aerobic plate count, coliforms, Escherichia coli, Staphylococcus aureus, Clostridium perfringens, salmonellae, ...
... Five lots of fish were examined microbiologically for aerobic plate count at 10 and 30 C. coliform and enterococcus counts, presence of coagulase-positive Staphylococcus aureus and genera of bacteria appearing on the aerobic plates. After initial analyses. fish were stored in ice, held there for a week and then aerobic plate counts and isolation of colonies for identification as to genus were done ...
Enterococcus; Food and Drug Administration; Salmonella; Vibrio parahaemolyticus; coagulase positive staphylococci; coliform bacteria; crab meat; crabs; enteropathogens; fecal bacteria; microbiological quality; oysters; scallops; seasonal variation; shellfish; shrimp; North Carolina
Abstract:
... Microbiological analyses of 716 seafood samples over a 3-year period revealed that the microbiological quality of fresh seafood in North Carolina was generally acceptable. The mean aerobic counts (APC) and fecal coliform counts were low as was the occurrence of enteric pathogens, except for Vibrio parahaemolyticus and coagulase-positive staphylococci. Salmonella species were isolated from three sa ...
... The phylogenetic interrelationships of the genera Pediococcus and Aerococcus were investigated using reverse transcriptase sequencing of 16S rRNA. The genus Pediococcus was found to be phylogenetically heterogeneous. The four species P. acidilactici, P. damnosus, P. parvulus and P. pentosaceus formed a phylogenetically distinct group. Within this pediococcal cluster, P. acidilactici was closely re ...
... A replicated, multiyear field study was conducted to assess the reduction of N, P and microbial indicators by a recirculating sand filter (RSF) and buried multilayer sand filter patterned after the RUCK filter. The RSF's received 38 L m⁻¹ d⁻¹ of septic tank effluent, while the buried sand filters were loaded at 76 L m⁻² d⁻¹. The RSF's had significantly greater reductions of N and P (21 and 31%, re ...
... Balance studies in germ‐free (GF) and conventional (CV) rats have shown that in‐vivo breakdown of amylomaize starch depends on endogenous and bacterial enzymes. In GF rats, one‐third of amylomaize starch is resistant to endogeneous digestion, whereas in CV rats starch is totally degraded, In order to study the contribution of endogenous and bacterial enzymes, the in‐vivo breakdown of amylomaize st ...
roosters; semen; microbial contamination; plate count; culture media
Abstract:
... Three experiments were conducted to determine the bacteriological quality of chicken semen. Semen was collected from donor males, diluted, and surface inoculated onto seven different bacteriological media, from which randomly selected colonies were identified. Bacterial counts in semen averaged 5.14 log10 cfu/mL. Tryptic soy agar (TSA) was the best medium for the isolation of Gram-positive bacteri ...