Zobrazeno 1 - 10
of 46
pro vyhledávání: '"M.J. Hayen"'
Publikováno v:
JDS Communications, Vol 2, Iss 5, Pp 295-299 (2021)
Late-gestation heat stress of dairy cows reduces fetal growth and influences postnatal performance and immune status of the offspring. Our first objective was to evaluate the effect of in utero heat stress on overall fetal and organ growth, particula
Externí odkaz:
https://doaj.org/article/2bf8a111d6c24fc2bfca3f8aafff1aa5
Publikováno v:
Revista Científica, Vol 11, Iss 4 (2010)
Three groups of Holstein heifers were utilized (N = I,39; II,63; III, 183) for growth rates of about 0.675 (control) or 0.900 (high) kg/d from 50 or 90 to 365 days of age. Heifers were fed either alfalfa silage or corn silage plus grain concentrate.
Externí odkaz:
https://doaj.org/article/fc4e14c471b54e968c12a35100208e93
Autor:
Geoffrey E. Dahl, John K. Bernard, J. Guo, Sha Tao, A.P.A. Monteiro, B. M. S. Ahmed, X. Weng, M.J. Hayen
Publikováno v:
Journal of Dairy Science. 99:3896-3907
Preliminary studies suggest that maternal heat stress (HS) during late gestation exerts carryover effects on a calf's insulin response after weaning, but a comprehensive evaluation of how maternal HS affects calf intake, growth, and metabolic respons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab4812a04ee26f99dba4a3f831d0aa57
https://doi.org/10.3168/jds.2015-10699
https://doi.org/10.3168/jds.2015-10699
Autor:
Sha Tao, I.M. Thompson, Geoffrey E. Dahl, Erin E. Connor, J.W. Bubolz, M.J. Hayen, B.C. do Amaral
Publikováno v:
Journal of Dairy Science. 96:378-383
Heat stress (HT) during the dry period compromises mammary gland development, decreases future milk production, and impairs the immune status of dairy cows. Our objective was to evaluate the effect of cooling HT cows during the dry period on gene exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43abb3013a2f14c69c76f7a534dd2a11
https://doi.org/10.3168/jds.2012-5811
https://doi.org/10.3168/jds.2012-5811
Autor:
K.C. Horvath, M.J. Hayen, Thiago F. Fabris, Amy L. Skibiel, Geoffrey E. Dahl, J. L. Powell, E.K. Miller-Cushon, Jimena Laporta
Publikováno v:
Journal of dairy science. 100(4)
Exposure to heat stress during late gestation exerts negative carryover effects on the postnatal performance of the calf. In this study, we evaluated the health, growth, and activity patterns of calves born to cows exposed to heat stress (HT, provide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12ab751afb292bec820a512604ca6046
https://pubmed.ncbi.nlm.nih.gov/28131582
https://pubmed.ncbi.nlm.nih.gov/28131582
Autor:
J. Guo, Geoffrey E. Dahl, B. M. S. Ahmed, X. Weng, A.P.A. Monteiro, Jimena Laporta, Sha Tao, M.J. Hayen, John K. Bernard
Publikováno v:
Journal of dairy science. 99(8)
Maternal heat stress alters immune function of the offspring, as well as metabolism and future lactational performance, but its effect on the hormonal and metabolic responses of the neonate immediately after birth is still not clear. The objective of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::295f3e61e4a6da506eff619edcd50f1c
https://pubmed.ncbi.nlm.nih.gov/27265168
https://pubmed.ncbi.nlm.nih.gov/27265168
Publikováno v:
Journal of Dairy Science. 95:7128-7136
Heat stress during the dry period affects the cow's mammary gland development, metabolism, and immunity during the transition period. However, the effect of late-gestation heat stress on calf performance and immune status is unknown. Our objective wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff120154cc77a0bd090e07c0db504841
https://doi.org/10.3168/jds.2012-5697
https://doi.org/10.3168/jds.2012-5697
Publikováno v:
Journal of Dairy Science. 94:86-96
Heat stress (HT) and photoperiod affect milk production and immune status of dairy cows. The objective was to evaluate the effects of HT abatement prepartum under controlled photoperiod on hepatic metabolic gene expression and cellular immune functio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7cab401201b8ca4ec62427492d09163
https://doi.org/10.3168/jds.2009-3004
https://doi.org/10.3168/jds.2009-3004
Publikováno v:
Asian-Australasian Journal of Animal Sciences. 21:404-413
Major objectives were to evaluate effects of three schemes of bST-supplementation of Holstein cows (142.8 mg/14 d, POSILAC) during the prepartum and/or postpartum periods through 63 d (±3 d) of lactation. Measures evaluated the potential of treatmen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19191a0f32ce6d8375f98bc884b041c0
https://doi.org/10.5713/ajas.2008.70449
https://doi.org/10.5713/ajas.2008.70449
Publikováno v:
Journal of Dairy Science. 88:3953-3962
The objective of this study was to use a within-cow, half-udder model to compare the effect of cessation of milk removal from mammary quarters within respective half udders at either 30 or 70 d before expected calving date (ECD) on the ability of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5a84069edc64601831f7694c6c67291
https://doi.org/10.3168/jds.s0022-0302(05)73081-2
https://doi.org/10.3168/jds.s0022-0302(05)73081-2