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Application Of Broken-Line Analysis To Assess Floor Space Requirements Of Nursery And Grower-Finisher Pigs Expressed On An Allometric Basis, Anna K. Johnson, H. W. Gonyou, M. C. Brumm, E. Bush, J. Deen, S. A. Edwards, T. Fangman, J. J. Mcglone, M. Meunier-Salaun, R. B. Morrison, H. Spoolder, P. L. Sundberg
Application Of Broken-Line Analysis To Assess Floor Space Requirements Of Nursery And Grower-Finisher Pigs Expressed On An Allometric Basis, Anna K. Johnson, H. W. Gonyou, M. C. Brumm, E. Bush, J. Deen, S. A. Edwards, T. Fangman, J. J. Mcglone, M. Meunier-Salaun, R. B. Morrison, H. Spoolder, P. L. Sundberg
Anna K. Butters-Johnson
Few issues in swine production are as complex as floor space allowances. One method for pork producers to calculate floor space allowance (A) is to convert BW into a 2-dimensional concept yielding an expression of A = k * BW(0.667). Data on ADG, ADFI, and G:F were obtained from published peer-reviewed studies. Five data sets were created: A = grower-finisher pigs, fully slatted floors, and consistent group size; B = grower-finisher pigs and fully slatted floors (group size did not need to be consistent); C = grower-finisher pigs, partially slatted floors, and consistent group size; D = grower-finisher pigs, partially …
Environmental Prevalence And Persistence Of Salmonella Spp. In Outdoor Swine Wallows, Anna K. Johnson, T. R. Callaway, J. L. Morrow, J. W. Dailey, F. M. Wallace, E. A. Wagstrom, J. J. Mcglone, A. R. Lewis, S. E. Dowd, T. L. Poole, T. S. Edrington, R. C. Anderson, K. J. Genovese, J. A. Byrd, R. . Harvey, D. J. Nisbet
Environmental Prevalence And Persistence Of Salmonella Spp. In Outdoor Swine Wallows, Anna K. Johnson, T. R. Callaway, J. L. Morrow, J. W. Dailey, F. M. Wallace, E. A. Wagstrom, J. J. Mcglone, A. R. Lewis, S. E. Dowd, T. L. Poole, T. S. Edrington, R. C. Anderson, K. J. Genovese, J. A. Byrd, R. . Harvey, D. J. Nisbet
Anna K. Butters-Johnson
Swine can harbor Salmonella in their gastrointestinal tracts. It has been estimated that up to 48% of the U.S. swine herd may carry Salmonella. Housing sows in farrowing stalls has become controversial due to animal welfare-based criticisms. An alternative production system is to keep sows outdoors on pasture with access to individual farrowing huts. This study was designed to determine the effects of two production systems on indicator bacteria and Salmonella of sows housed indoors in farrowing stalls (n = 52) compared to sows housed outdoors (n = 52) in English style huts. Each farrowing radial contained one wallow, from …
Effect Of Water Sprinkling On Incidence Of Zoonotic Pathogens In Feedlot Cattle, Anna K. Johnson, J. L. Morrow, F. M. Mitloehner, M. L. Galyean, J. W. Dailey, T. S. Edrington, R. C. Anderson, K. J. Genovese, T. L. Poole, S. E. Duke, T. R. Callaway
Effect Of Water Sprinkling On Incidence Of Zoonotic Pathogens In Feedlot Cattle, Anna K. Johnson, J. L. Morrow, F. M. Mitloehner, M. L. Galyean, J. W. Dailey, T. S. Edrington, R. C. Anderson, K. J. Genovese, T. L. Poole, S. E. Duke, T. R. Callaway
Anna K. Butters-Johnson
Heat stress and dusty conditions are common challenges for cattle during the summer, and a typical method of alleviating these problems involves sprinkling cattle and pens with water. The effect of sprinkling water on the incidence of zoonotic pathogens has not been previously studied. Four pens of heifers (n = 41) were cooled using sprinklers, and four pens (n = 43) served as controls. Heifers were crossbred Charolais, with white and red hair coats. Sprinkling was initiated when cattle were on full concentrate feed (July). Fecal samples, hide swipes, and BW were collected on d 0, 28, 63, 95, and …
Review: Compilation Of The Scientific Literature Comparing Housing Systems For Gestating Sows And Gilts Using Measures Of Physiology, Behavior, Performance, And Health, Anna K. Johnson, J. J. Mcglone, E. H. Von Borell, J. Deen, D. G. Levis, M. Meunier-Salaun, J. Morrow, D. Reeves, J. L. Salak-Johnson, P. L. Sundberg
Review: Compilation Of The Scientific Literature Comparing Housing Systems For Gestating Sows And Gilts Using Measures Of Physiology, Behavior, Performance, And Health, Anna K. Johnson, J. J. Mcglone, E. H. Von Borell, J. Deen, D. G. Levis, M. Meunier-Salaun, J. Morrow, D. Reeves, J. L. Salak-Johnson, P. L. Sundberg
Anna K. Butters-Johnson
The objective of this review was two-fold. First, a series of meta-analyses (analyses of treatment effects across studies) were performed on available data from scientific literature to determine whether sow behavior, performance, or physiology differed for sows in group pens or individual stalls. Second, research publications in areas of performance and health, physiology, and behavior of pregnant gilts and sows in studies that directly compared gestation sow housing systems were summarized. Common systems were stalls, tethers, and various types of group housing systems. Results of meta-analyses showed that the average levels of productivity, oral-nasal-facial behaviors (ONF), and blood cortisol were …