Zobrazeno 1 - 10
of 34
pro vyhledávání: '"D C, Lay"'
Publikováno v:
Journal of animal science. 95(7)
Feed withdrawal and transport commonly occur together in pigs. Objectives of this study were to determine if these preslaughter stressors, feed withdrawal and transportation, affect the levels of , stress hormone concentrations, and immune functions
Autor:
J S, Johnson, D C, Lay
Publikováno v:
Journal of animal science. 95(1)
Study objectives were to evaluate the effects of post-weaning transport during heat stress (HS) and thermoneutral (TN) conditions when dietary antibiotics are removed or replaced with a nutraceutical. Sixty mixed sex piglets from 10 sows ( = 6 piglet
Publikováno v:
Journal of Animal Science. 95:18-19
Autor:
Matthew E. Wilson, D. C. Lay Jr.
Publikováno v:
Journal of Animal Science. 80:1954-1961
Exposing a pregnant mammal to stressors causes behavioral and physiological alterations in her offspring ("prenatal stress"); however, elucidation of the underlying mechanism is hindered by an inability to control maternal compounds that may affect t
Publikováno v:
Journal of animal science. 92(11)
Improving piglet survivability rates is of high priority for swine production as well as for piglet well-being. Dysfunction in the serotonin (5-HT) system has been associated with growth deficiencies, infant mortalities, or failure to thrive in human
Publikováno v:
Journal of animal science. 92(6)
Free-access stalls allow sows to choose the protection of a stall or use of a shared group space. This study investigated the effect of group space width, 0.91 (SS), 2.13 (IS), and 3.05 (LS) m, on the health, production, behavior, and welfare of gest
Publikováno v:
Journal of animal science. 92(3)
After birth, piglets undergo procedures likely to cause stress. The aim of this study was to evaluate stress responses evoked by 2 combinations (More Stressful [all a] or Less Stressful [all a] or More Stressful [all b]) of alternative methods for pe
Publikováno v:
Journal of animal science. 92(2)
In many mammalian species, prenatal stress masculinizes female and feminizes male offspring impairing their reproductive capacity. Regrouping gestating sows is a common, stressful production practice, but its impact on the developing pigs of the sow
Publikováno v:
Animal Science. 68:709-715
Our laboratory recently reported that the ratio of a piglet’s weight to that of its placenta (RATIO) varies approximately three-fold within a litter, due predominantly to variation in placental size which is known to be a limiting factor in litter
Publikováno v:
Swine Housing Conference.
The effect of housing on animal environment and behavior have been studied in a comparative trial with three deep-bedded hoop structures and one totally, environmentally- controlled slatted-floor building. In order to assess animal welfare, behavior