Results 21 to 30 of about 13,944 (230)

Understanding the transmission dynamics of Escherichia coli O157:H7 super-shedding infections in feedlot cattle [PDF]

PeerJ, 2021
Background The presence of Escherichia coli O157:H7 (E. coli O157:H7) super-shedding cattle in feedlots has the potential to increase the overall number (bio-burden) of E. coli O157:H7 in the environment. It is important to identify factors to reduce the
Elizabeth M. Antaki-Zukoski, Xunde Li, Bruce Hoar, John M. Adaska, Barbara A. Byrne, Edward R. Atwill   +5 more
doaj   +2 more sources

The effect of breed in a hot environment on some welfare indicators in feedlot cattle

Spanish Journal of Agricultural Research, 2013
Heat stress has an important effect on the welfare of livestock and causes significant changes in biological functions. This study was carried out to investigate the behavioral differences of Brown Swiss (BS) and Holstein (H) feedlot cattle reared in a ...
S. Dikmen
doaj   +1 more source

Kinome Analysis of Cattle Peripheral Lymph Nodes to Elucidate Differential Response to Salmonella spp.

Microorganisms, 2022
Salmonella spp., contained within the peripheral lymph nodes (PLNs) of cattle, represents a significant source of contamination of ground beef. Herein is the first report where species-specific kinome peptide arrays designed for bovine biology were used ...
Ryan J. Arsenault, Tyson R. Brown, Thomas S. Edrington, David J. Nisbet   +3 more
doaj   +1 more source

Dynamics of Extended-spectrum Beta-lactamase–producing, Third-generation Cephalosporin-resistant and Tetracycline-resistant Escherichia coli in Feedlot Cattle With or Without Tylosin Administration

Journal of Food Protection, 2023
The impact of in-feed use of tylosin in feedlot cattle on Gram-negative foodborne bacteria is unknown. We evaluated the effect of continuous in-feed tylosin use on the concentration and prevalence of tetracycline-resistant (TETr)-, third-generation ...
Getahun E. Agga, Hunter O. Galloway
doaj   +1 more source

Development of a calculation model and production cost index for feedlot beef cattle

Revista Brasileira de Zootecnia, 2018
The objective of this study was to develop a feedlot beef cattle calculation model and production cost analysis and, from the results obtained, devise a production cost index. A case study was conducted to understand the characteristics of the productive
Gustavo Lineu Sartorello, João Paulo Sigolo Teixeira Bastos, Augusto Hauber Gameiro   +2 more
doaj   +1 more source

Feedlot growth performance and carcass characteristics of steers backgrounded on buffel grass or buffel–Desmanthus mixed pastures

Frontiers in Veterinary Science, 2022
Feedlot performance and carcass characteristics of tropical beef steers backgrounded on buffel grass (Cenchrus ciliaris) only or buffel grass oversown with desmanthus (Desmanthus spp. ; 11.5% initial sward botanical composition) were evaluated.
Felista Waithira Mwangi, Darryl Savage, Christopher Peter Gardiner, Edward Charmley, Bunmi Sherifat Malau-Aduli, Robert Tumwesigye Kinobe, Aduli Enoch Othniel Malau-Aduli   +6 more
doaj   +1 more source

Comparison of pathogenic bacteria in the upper and lower respiratory tracts of cattle either directly transported to a feedlot or co-mingled at auction markets prior to feedlot placement

Frontiers in Veterinary Science, 2023
IntroductionBacterial bronchopneumonia (BP) has been associated with purchasing cattle through auction markets. However, whether auction markets are a source of BP-associated bacterial pathogens is unknown.
Christina Hirsch, Edouard Timsit, Muhammed Salah Uddin, Muhammed Salah Uddin, Le Luo Guan, Trevor W. Alexander   +5 more
doaj   +1 more source

Variance component estimates, phenotypic characterization, and genetic evaluation of bovine congestive heart failure in commercial feeder cattle

Frontiers in Genetics, 2023
The increasing incidence of bovine congestive heart failure (BCHF) in feedlot cattle poses a significant challenge to the beef industry from economic loss, reduced performance, and reduced animal welfare attributed to cardiac insufficiency.
Justin W. Buchanan, Lex E. Flagel, Michael D. MacNeil, Michael D. MacNeil, Michael D. MacNeil, Ashley R. Nilles, Jesse L. Hoff, Joseph K. Pickrell, Randall C. Raymond   +8 more
doaj   +1 more source

Herd-level risk factors associated with the presence of Phage type 21/28 E. coli O157 on Scottish cattle farms [PDF]

, 2006
<p>Background: E. coli O157 is a bacterial pathogen that is shed by cattle and can cause severe disease in humans. Phage type (PT) 21/28 is a subtype of E.
Fenlon, D, Allison Lesley, Low, JC, Chase-Topping Margo E, Chase-Topping, ME, Halliday Jo EB, Woolhouse Mark EJ, Pearce, Michael C., Chase-Topping, M.E., Low, C., McKendrick, IJ, Low, Christopher, Low, C, Pearce, M.C., Fenlon, D., Mellor, Dominic J., Halliday, JEB, Chase-Topping, M, Mellor Dominic J, Allison, L., Gunn, G.J., Gunn, GJ, McKendrick, Iain J., Pearce, MC; id_orcid, Fenlon Dave, McKendrick Iain J, Chase-Topping, Margo E., Gunn George J, Halliday, Jo E. B., Pearce, MC, Woolhouse, MEJ, McKendrick, I.J, Mellor, DJ, Pearce Michael C, Halliday, J.E.B., Allison, L, Allison, Lesley, Woolhouse, M.E.J., Mellor, D.J., Low Chris, Gunn, George J., Fenlon, Dave, Woolhouse, Mark E. J.; id_orcid   +42 more
core   +1 more source

Comparison of two water measurement systems for feedlot beef cattle. [PDF]

, 2021
The objective of this study was to compare cattle drinking water consumption collected electronically with that of direct human observation using water metres and to analyse whether an automated system compensates due to its greater precision.
HISATUGU, M. T., Meo-Filho, P., NOVELLI, T. I., PALHARES, J. C. P., MORELLI, M., MÉO FILHO, P. DE   +5 more
core   +1 more source