Zobrazeno 1 - 10
of 80
pro vyhledávání: '"R. D. Randel"'
Publikováno v:
International Journal of Zoology, Vol 2011 (2011)
The detrimental effects caused by stressors encountered by animals during routine handling can pose economic problems for the livestock industry due to increased costs ultimately borne by the producer and the consumer. Stress adversely affects key ph
Externí odkaz:
https://doaj.org/article/1ec8a116e7654bc4bf89b9e5b53910c1
Autor:
R. D. Randel
Publikováno v:
Factors Affecting Calf Crop ISBN: 9781003069119
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7082c503c927d2d69a2322d5a8247bc5
https://doi.org/10.1201/9781003069119-24
https://doi.org/10.1201/9781003069119-24
Publikováno v:
Journal of animal science. 95(12)
The objective of this research was to evaluate circulating concentrations of plasma cortisol and measures of temperament at weaning in calves (steers and heifers) and at transport in steers. Calves (n = 993) were produced from a 3-breed diallel matin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::51e64b466eb39b20e0b93f9a4f5bcd17
https://pubmed.ncbi.nlm.nih.gov/29293783
https://pubmed.ncbi.nlm.nih.gov/29293783
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::93ae2589254769cfd998d97ea1299117
https://pubmed.ncbi.nlm.nih.gov/28177387
https://pubmed.ncbi.nlm.nih.gov/28177387
Publikováno v:
Journal of Animal Science.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1aea1480f003dc945d52d59ab738da9
https://doi.org/10.2527/jas2019.1924
https://doi.org/10.2527/jas2019.1924
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::843e66d6e2e99e2d60656ce9e80f393a
https://pubmed.ncbi.nlm.nih.gov/27065130
https://pubmed.ncbi.nlm.nih.gov/27065130
Autor:
D M, Price, A W, Lewis, D A, Neuendorff, J A, Carroll, N C, Burdick Sanchez, R C, Vann, T H, Welsh, R D, Randel
Publikováno v:
Journal of animal science. 93(2)
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::6a102156a6bb20ea17a3daeb333cc6ba
https://pubmed.ncbi.nlm.nih.gov/26020755
https://pubmed.ncbi.nlm.nih.gov/26020755
Publikováno v:
Journal of animal science. 92(7)
The objective of this study was to estimate the heritability of 3 measures of temperament in Brahman and Brahman-influenced calves (n = 1,209). Individual animal pen scores (PS) were determined by a trained observer who evaluated groups of 5 or 4 cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::0693f9fbe590c842e1b2c0332916e2d2
https://pubmed.ncbi.nlm.nih.gov/24821821
https://pubmed.ncbi.nlm.nih.gov/24821821
Autor:
R D, Randel
Publikováno v:
Journal of animal science. 91(7)
The purpose of graduate education in reproductive physiology and endocrinology is to develop scientists and educators who will create new knowledge and impart this knowledge to appropriate end users in animal agriculture. Technology changes over time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::d34dfc773c77fd67187115e92b9b4428
https://pubmed.ncbi.nlm.nih.gov/23100574
https://pubmed.ncbi.nlm.nih.gov/23100574
Autor:
R D, Randel, T H, Welsh
Publikováno v:
Journal of animal science. 91(3)
The influence of nutrition on puberty in beef heifers is complex and under neuroendocrine control. The stores of body fat in mammals are a determinant of the onset and maintenance of puberty. Body fat stores are greater in heifers with greater residu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::008662ca94fe5b864f4f0fbea3054896
https://pubmed.ncbi.nlm.nih.gov/23048157
https://pubmed.ncbi.nlm.nih.gov/23048157