Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Microbial pathogen survival study in a high plains feedyard playa
Autore:
Purdy, CW; Straus, DC; Harp, JA; Mock, R;
Indirizzi:
USDA ARS, Bushland, TX 79012 USA USDA ARS Bushland TX USA 79012USDA ARS, Bushland, TX 79012 USA
Titolo Testata:
TEXAS JOURNAL OF SCIENCE
fascicolo: 3, volume: 53, anno: 2001,
pagine: 247 - 266
SICI:
0040-4403(200108)53:3<247:MPSSIA>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
BACTERIOLOGICAL QUALITY; PASTURE RUNOFF; WATER-QUALITY; SALMONELLA; GROUNDWATER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Purdy, CW USDA ARS, PO Drawer 10, Bushland, TX 79012 USA USDA ARS PO Drawer 10 Bushland TX USA 79012 shland, TX 79012 USA
Citazione:
C.W. Purdy et al., "Microbial pathogen survival study in a high plains feedyard playa", TEX J SCI, 53(3), 2001, pp. 247-266

Abstract

-Sixteen microbes and one enteric protozoal parasite were secured in screw-cap vials (CV) and dialysis tubes (DT) and placed in a feedyard shallow lake (playa) in the West Texas High Plains, USA. They were removed weekly or monthly depending on their susceptibility to the water environment. There were two overlapping studies; one started in September 1996 and was terminated 390 days later. The second study started in May 1997 and was terminated 188 days later. These controlled studies were used to determine the decrease in titers of 10 bacteria (Pasteurella haemolytica A1, Pasteurella multocida A:3, Staphylococcus aureus, Escherichia coli, Enterococcus faecalis, Actinomyces pyogenes, Salmonella enterica serovar dublin, Bacillus thuringiensis, Klebsiella pneumoniae and Pseudomonas aeruginosa); two fungi (Aspergillus fumigatus and Aspergillus niger); four viruses (Infectious Bovine Rhinotracheaitis (IBR), Bovine Virus:Diarrhea Virus (BVD), Bovine Respiratory Syncytial Virus (BRSV), Bovine Parvovirus (BPV) and one protozoal parasite (Cryptosporidium parvum), over time. The Pasteurella isolates died in both studies within seven to 35 days. Actinomyces pyogenes died within 84 days in the 1996 study and survived for 188 days in the 1997 study. The remaining bacterial isolates in 1996 survived for 390 days with low titers, except for P. aeruginosa. Both fungal isolates died by 390 days in the 1996 study. Allbacteria and fungi survived the 188 day study in 1997, except for the Pasteurella isolates. The titers of the viruses decreased rapidly over 42 days,except for BPV in the 1996 study, and all viruses were inactivated by day 42 in the 1997 study. Cryptosporidium parvum survived the 1996 winter but lost it's ability to infect infant mice during the month of May, 1997. Microbial survival decreased more rapidly in DT samples compared to CV samples.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 02:42:48