Zobrazeno 1 - 10
of 150
pro vyhledávání: '"D.D. Hancock"'
Publikováno v:
Preventive Veterinary Medicine. 98:74-78
The objective was to determine the incidence and transmission of mycoplasma mastitis in the hospital pen in a dairy herd of 650 lactating cows after a hospital pen was established following an outbreak of this disease. Mycoplasma mastitis status was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbf2dffef1de399f3b50662a8d817520
https://doi.org/10.1016/j.prevetmed.2010.10.015
https://doi.org/10.1016/j.prevetmed.2010.10.015
Publikováno v:
Theriogenology. 45:1505-1513
To establish fetal loss frequency during the interval between pregnancy diagnosis and 260 days of gestation, 10 Holstein dairy herds in the northwestern United States were studied for one year. The herds were enrolled in the Dairy Herd Improvement As
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b33305d84747875be2194fa218ba7f74
https://doi.org/10.1016/0093-691x(96)00118-5
https://doi.org/10.1016/0093-691x(96)00118-5
Publikováno v:
Journal of Dairy Science. 78:2073-2082
Telephone interviews were conducted to evaluate the association of teat chapping with combinations of premilking and postmilking teat disinfectants (predip and postdip), other management practices, and climatic conditions. Holstein dairies (n = 100)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad88a9607410db2c3b3608077ec52e4c
https://doi.org/10.3168/jds.s0022-0302(95)76833-3
https://doi.org/10.3168/jds.s0022-0302(95)76833-3
A case-control study of Washington dairy herds experiencing drug residue violations in market calves
Publikováno v:
Preventive Veterinary Medicine. 23:143-151
The purpose of this case-control study was to examine the association between management practices and the occurrence of violative drug residues in calves originating from Washington dairies. In 1992, 74 dairies were identified as first-time offender
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8aa682f9be8370c8e4cf93ef18f654a1
https://doi.org/10.1016/0167-5877(94)00456-s
https://doi.org/10.1016/0167-5877(94)00456-s
Publikováno v:
Theriogenology. 43:989-1000
Estimates of the frequency of endemic fetal loss range from 0.4 to 10.6%, a 26-fold difference, in 26 studies of dairy herds over 5 decades. Sources of this difference include breed, geographic, study population, case definition and procedural differ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7652bdbf9cb3ea13a86fcdaa721445f1
https://doi.org/10.1016/0093-691x(95)00063-e
https://doi.org/10.1016/0093-691x(95)00063-e
Publikováno v:
Journal of Dairy Science. 77:3354-3364
The purposes of this study were to identify sources of Staphylococcus aureus on dairies and to determine whether S. aureus colonization of heifer body sites increases the risk of S. aureus IMI at parturition. In herds with high (> 10%) or low (< 3%)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::666c82087f4e1f200c96bc7c9a841078
https://doi.org/10.3168/jds.s0022-0302(94)77277-5
https://doi.org/10.3168/jds.s0022-0302(94)77277-5
Publikováno v:
Small Ruminant Research. 9:313-318
Forty-nine does were used to study the effectiveness of selective drying-off intramammary antibiotic therapy. All udder halves with intramammary infections by pathogens: coagulase negative staphylococci, Corynebacterium bovis, Streptococcus uberis or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59e4f41aa99bf5681ccc363d59b8f08e
https://doi.org/10.1016/0921-4488(92)90160-6
https://doi.org/10.1016/0921-4488(92)90160-6
Autor:
B. Adhikari, T.E. Besser, J.M. Gay, L.K. Fox, M.A. Davis, R.N. Cobbold, A.C. Berge, R. McClanahan, D.D. Hancock
Publikováno v:
Journal of dairy science. 92(9)
A longitudinal observational study of 59 dairy herds was conducted in Washington State to estimate the rate of introduction of new multidrug-resistant (MDR) Salmonella enterica strains onto commercial dairy herds. Samples were collected on these herd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a0e6c444ccfefca5434b0e7efd7bd32
https://pubmed.ncbi.nlm.nih.gov/19700683
https://pubmed.ncbi.nlm.nih.gov/19700683
Autor:
B. Adhikari, T.E. Besser, J.M. Gay, L.K. Fox, M.A. Davis, R.N. Cobbold, A.C.B. Berge, D.D. Hancock
Publikováno v:
Journal of dairy science. 92(9)
Fifty-nine commercial dairy farms were sampled 7 times over 15 to 21 mo to determine the role of animal movement, including off-farm rearing of heifers, in the interherd transmission of multidrug-resistant (MDR) Salmonella spp. Farm management data w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::316ace585484b0b31c9a655afa990585
https://pubmed.ncbi.nlm.nih.gov/19700684
https://pubmed.ncbi.nlm.nih.gov/19700684
Publikováno v:
Journal of dairy science. 92(9)
Low sensitivity of a single bulk tank milk culture is a major limitation for detection of mycoplasma organisms. We hypothesized that sedimentation of Mycoplasma spp. in a milk sample by centrifugation followed by resuspension in a small volume of flu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d50dba27605f279c92b7b052c536b200
https://pubmed.ncbi.nlm.nih.gov/19700705
https://pubmed.ncbi.nlm.nih.gov/19700705