Epidemiology of Salmonella sp. in California cull dairy cattle: prevalence of fecal shedding and diagnostic accuracy of pooled enriched broth culture of fecal samples

Autor: Omran A. Abu Aboud, John M. Adaska, Deniece R. Williams, Paul V. Rossitto, John D. Champagne, Terry W. Lehenbauer, Robert Atwill, Xunde Li, Sharif S. Aly

Publikováno v: PeerJ, Vol 4, p e2386 (2016)

Background The primary objective of this cross-sectional study was to estimate the crude, seasonal and cull-reason stratified prevalence of Salmonella fecal shedding in cull dairy cattle on seven California dairies. A secondary objective was to estim

Externí odkaz: https://doaj.org/article/8f0e31beac6841c7912f689ee675ff4a

Development of a clinical scoring system for bovine respiratory disease in weaned dairy calves

Autor: Joan D Rowe, Gabriele Maier, Terry W. Lehenbauer, Deniece R. Williams, Betsy M. Karle, John D. Champagne, Sharif S. Aly

Publikováno v: Journal of Dairy Science. 102:7329-7344

Clinical scoring systems for bovine respiratory disease (BRD) in weaned dairy calves have been developed in the past with calves experimentally infected with specific respiratory pathogens. In this prevalent case control study, a BRD clinical scoring

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41010a30048f8885ef818fa5dd627fa6
https://doi.org/10.3168/jds.2018-15474

Reliability of sampling strategies for measuring dairy cattle welfare on commercial farms

Autor: Julia Trieb, Terry W. Lehenbauer, Jennifer M.C. Van Os, John D. Champagne, Soraia V. Matarazzo, Christoph Winckler, Cassandra B. Tucker

Publikováno v: Journal of Dairy Science. 101:1495-1504

Our objective was to evaluate how the proportion of high-producing lactating cows sampled on each farm and the selection method affect prevalence estimates for animal-based measures. We assessed the entire high-producing pen (days in milk

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28282ae1cae684aa63cb466a5749541a
https://doi.org/10.3168/jds.2017-13611

Risk factors affecting dairy cattle protective grouping behavior, commonly known as bunching, against Stomoxys calcitrans (L.) on California dairies

Autor: John D. Champagne, Sharif S. Aly, Terry W. Lehenbauer, Alec C. Gerry, Deniece R. Williams, Wagdy R. El Ashmawy

Publikováno v: PLoS ONE, Vol 14, Iss 11, p e0224987 (2019)
PLoS ONE
PloS one, vol 14, iss 11
PLoS ONE, Vol 15, Iss 7, p e0235775 (2020)

Bunching is the term used to describe the protective aggregating behavior of cattle against the painful bites of stable flies (Stomoxys calcitrans), where cattle gather in a group with their heads to the center of the group and their tails to the out

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42fc5df7b25a43c9dc923538d67711c5
https://doaj.org/article/b80e36fe09504990a228dc1c318cdf97

Multiple episodes of 1080 (sodium monofluoroacetate) intoxication in a California calf-raising operation

Autor: John M. Adaska, Michelle Mostrom, Guillermo Rimoldi, John D. Champagne, Robert H. Poppenga, Patricia C Blanchard

Publikováno v: Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc, vol 30, iss 5

Over a 1-y period, a California calf-raising operation experienced 4 separate episodes of sudden death in 4–6-mo-old steers. Each episode occurred in 1–3 contiguous pens on 1 of 3 properties owned by the operation, but eventually all 3 properties

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d135563233687b8e7dbb404d603d3890
https://escholarship.org/uc/item/6nk919gr