Zobrazeno 1 - 10
of 27
pro vyhledávání: '"D. A. Neuendorff"'
Autor:
Ronald D. Randel, David G. Riley, Jeffery A. Carroll, A. W. Lewis, Michelle N Bedenbaugh, Marcel Amstalden, Rhonda C. Vann, D. A. Neuendorff, M. C. Roberts, Thomas H. Welsh, Brittni P Littlejohn
Publikováno v:
Journal of Animal Science. 95:129-138
This study examined the relationship of prenatal transportation stress (PNS) with exogenous GnRH-induced LH and testosterone secretion in sexually mature Brahman bulls. Brahman cows (n = 96; 48 were stressed by transportation at 5 stages of gestation
Autor:
Ronald D. Randel, Thomas H. Welsh, D. M. Price, J. P. Banta, Jeffery A. Carroll, A. W. Lewis, D. A. Neuendorff, B. P. Littlejohn, Rhonda C. Vann
Publikováno v:
Journal of Animal Science. 94:602-609
This experiment examined the relationship between prenatal stress and subsequent calf temperament through weaning. The prenatal stressor used was repeated transportation of pregnant Brahman cows for 2 h at 60 ± 5, 80 ± 5, 100 ± 5, 120 ± 5, and 14
Autor:
D. M. Price, Ronald D. Randel, Jeffery A. Carroll, N. C. Burdick Sanchez, Rhonda C. Vann, A. W. Lewis, Thomas H. Welsh, D. A. Neuendorff
Publikováno v:
Journal of Animal Science. 93:737-745
This study characterized physiological responses to repeated transportation (TRANS) of gestating cows of differing temperaments. Cows were classified as Calm (C; = 10), Intermediate (I; = 28), or Temperamental (T; = 10). Based on artificial inseminat
Autor:
D. A. Neuendorff, C.W. Weems, Terry M. Nett, Yan Ma, A. W. Lewis, Rhonda C. Vann, Stephen P. Ford, Ronald D. Randel, Thomas H. Welsh, Yoshie S. Weems
Publikováno v:
Theriogenology. 82:1224-1230
Previously, it was reported that intraluteal implants containing prostaglandin E1 or E2 (PGE1 and PGE2) in Angus or Brahman cows prevented luteolysis by preventing loss of mRNA expression for luteal LH receptors and luteal unoccupied and occupied LH
Autor:
B P, Littlejohn, M C, Roberts, M N, Bedenbaugh, A W, Lewis, D A, Neuendorff, D G, Riley, J A, Carroll, R C, Vann, M, Amstalden, R D, Randel, T H, Welsh
Publikováno v:
Journal of animal science. 95(1)
This study examined the relationship of prenatal transportation stress (PNS) with exogenous GnRH-induced LH and testosterone secretion in sexually mature Brahman bulls. Brahman cows (n = 96; 48 were stressed by transportation at 5 stages of gestation
Autor:
J. P. Banta, Ronald D. Randel, Lacey Quail, C. L. Cook, D. A. Neuendorff, M E Mund, Thomas H. Welsh
Publikováno v:
Journal of Animal Science. 96:48-49
Autor:
B P, Littlejohn, D M, Price, J P, Banta, A W, Lewis, D A, Neuendorff, J A, Carroll, R C, Vann, T H, Welsh, R D, Randel
Publikováno v:
Journal of animal science. 94(2)
This experiment examined the relationship between prenatal stress and subsequent calf temperament through weaning. The prenatal stressor used was repeated transportation of pregnant Brahman cows for 2 h at 60 ± 5, 80 ± 5, 100 ± 5, 120 ± 5, and 14
Autor:
J. Alejandro Arreguin-Arevalo, Stephen P. Ford, Phillip J. Bridges, A. W. Lewis, Rhonda C. Vann, Torrance M. Nett, Thomas H. Welsh, Yoshie S. Weems, D. A. Neuendorff, C.W. Weems, Ronald D. Randel
Publikováno v:
Prostaglandins & Other Lipid Mediators. 95:35-44
Previously, it was reported that chronic intra-uterine infusion of PGE(1) or PGE(2) every four hours inhibited luteolysis in ewes. However, estradiol-17β or PGE(2) given intra-uterine every 8h did not inhibit luteolysis in heifers, but infusion of e
Autor:
Ronald D. Randel, Rhonda C. Vann, N. C. Burdick, B. Agado, D. A. Neuendorff, Thomas H. Welsh, D. G. Riley, K. J. Matheney, J. C. White
Publikováno v:
Journal of Animal Science. 89:233-236
The purpose of this study was to assess changes in exit velocity (EV) of Brahman calves from 21 d of age (DOA) to 56 d postweaning (231.30 ± 1.23 DOA). Spring-born calves (n = 308) from 2006 to 2008 were sired by 18 bulls. Exit velocity (m/s) was de
Autor:
Ronald D. Randel, Thomas H. Welsh, K.O. Curley, A. W. Lewis, Francis M. Rouquette, D. A. Neuendorff
Publikováno v:
Physiology & Behavior. 101:699-704
By using the temperament selection criterion of exit velocity (EV), cattle typically exhibiting hypercortisolism and a blunted response to exogenous corticotrophin-releasing hormone (CRH) can be identified via individual behavioral responses to handl