Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Nigel B. Cook"'
Autor:
Kimberly J. Reuscher, Nigel B. Cook, Courtney E. Halbach, Mario R. Mondaca, Jennifer M. C. Van Os
Publikováno v:
Frontiers in Animal Science, Vol 5 (2024)
Heat stress is a known challenge for dairy farms, but standardized, practical heat abatement assessments are lacking. Our objectives were to evaluate the summer ventilation system performance of Wisconsin freestall facilities, provide farms with feed
Externí odkaz:
https://doaj.org/article/ece5cdcda1bb44ac9a182a2a400772e9
Publikováno v:
Journal of Dairy Science, Vol 107, Iss 1, Pp 4-8 (2024)
ABSTRACT: The contentious issue of cow-calf separation at birth is incongruent with many views on acceptable farming practices, and carries the risk of eroding public trust in the dairy industry if it is not addressed. The available evidence provides
Externí odkaz:
https://doaj.org/article/18ba372506824ea2b6decc16c0f83ddb
Autor:
Kimberly J. Reuscher, Nigel B. Cook, Tadeu E. da Silva, Mario R. Mondaca, Karen M. Lutcherhand, Jennifer M.C. Van Os
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 12, Pp 9552-9567 (2023)
ABSTRACT: Heat abatement (e.g., soakers, fans) effectively reduces the negative physiological and production effects of heat stress, but no previous studies have documented effective interventions for the reduced lying times observed in response to h
Externí odkaz:
https://doaj.org/article/256a9fe34c80456eaa84b4671edf1399
Publikováno v:
JDS Communications, Vol 3, Iss 6, Pp 426-430 (2022)
The objective of this preliminary observational study was to determine milking time behavior of cows in a free-flow automated (robotic) milking system (AMS) and identify potential factors that influenced the time waiting to be milked. Milking time be
Externí odkaz:
https://doaj.org/article/b88a9e2bdbb84d438262fab88ac2932e
Autor:
Nigel B. Cook
Publikováno v:
Journal of Dairy Science. 103:3846-3855
This symposium review examines the association between comfort and cow longevity, with a particular emphasis on optimizing resting behavior in confinement-housed systems. Housed dairy cattle demonstrate a variety of negative behavioral and physiologi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2eef9eb5261af798e2d29f025bb5b0ca
https://doi.org/10.3168/jds.2019-17140
https://doi.org/10.3168/jds.2019-17140
Publikováno v:
Journal of Dairy Science. 102:6495-6507
Heat load is a challenge for high-producing dairy cows, with adverse consequences on production, reproduction, and welfare. The objectives of this observational study in 2 commercial dairy herds were to determine the effects of environmental heat str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::691fa9ec1ff807c0635efd32db11b719
https://doi.org/10.3168/jds.2018-15891
https://doi.org/10.3168/jds.2018-15891
Publikováno v:
Biosystems Engineering. 183:70-84
The objective of this study was to determine the correlation between ventilation rates occurring in a barn designed to house dairy cows and the microenvironments that develop within the cow pens. To do this, a computational fluid dynamics model (CFD)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87a4a8e4e057b1b3d24fc6f740053a04
https://doi.org/10.1016/j.biosystemseng.2019.04.014
https://doi.org/10.1016/j.biosystemseng.2019.04.014
Autor:
Nigel B. Cook
Publikováno v:
Veterinary Clinics of North America: Food Animal Practice. 35:125-138
Improvements during transition, following a blueprint that allows for all cows to eat from the feedbunk simultaneously and have access to a comfortable soft bed, avoiding regrouping stress 2 to 7 days before calving. Approaches to prefresh cow housin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d651c4a87909f6654d5d8df5d2ddd30f
https://doi.org/10.1016/j.cvfa.2018.10.008
https://doi.org/10.1016/j.cvfa.2018.10.008
Autor:
Mario R. Mondaca, Nigel B. Cook
Publikováno v:
Journal of Dairy Science. 102:896-908
The objectives were to compare capital costs of building and installation of 7 ventilation systems for adult lactating dairy cow housing and evaluate the energy use and operating cost between systems. A cost model comprising stochastic and parametric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96d457ab7b068bf46f101df94f79de6f
https://doi.org/10.3168/jds.2018-14697
https://doi.org/10.3168/jds.2018-14697
Publikováno v:
Transactions of the ASABE. 61:1475-1485
This study uses a continuously sampling sensor to document the respiration rate dynamics of lactating dairy cows under conditions of heat stress. Previously available respiration rate data on lactating dairy cows had primarily been generated by manua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd122bf1cff7c65ce66489d5b1cac2a7
https://doi.org/10.13031/trans.12451
https://doi.org/10.13031/trans.12451