Abstract
High ambient heat and humidity have profound effects on the production, health, profitability, and welfare of dairy cattle. To describe the relationship between summer temperature and relative humidity in the barn and determine the appropriateness of using meteorological station data as a surrogate for on-farm environmental monitoring, a study was conducted on 48 farms in Ontario, Canada, over the summer (May through September) of 2013. Within-barn environmental conditions were recorded using remote data loggers. These values were compared with those of the closest official meteorological station. In addition, farm-level characteristics and heat-abatement strategies were recorded for each farm. Environmental readings within the barn were significantly higher than those of the closest meteorological station; however, this relationship varied greatly by herd. Daily temperature-humidity index (THI) values within the barn tended to be 1 unit higher than those of the closest meteorological station. Numerically, 1.5 times more mean daily THI readings were in excess of 68 (heat stress threshold for lactating dairy cows) in the barn, relative to the closest meteorological station. In addition, tiestalls, herds that were allowed access ...Continue Reading
References
Feb 1, 1992·Journal of Dairy Science·F ElvingerP J Hansen
May 1, 1992·International Journal of Biometeorology·M O IgonoH T Sanford-Crane
Jul 1, 1994·Journal of Dairy Science·D V Armstrong
Oct 24, 1998·Journal of Dairy Science·T F DuffieldR Bagg
Dec 19, 2002·Journal of Dairy Science·O Ravagnolo, I Misztal
Jan 7, 2003·Journal of Dairy Science·A M Wagner-Storch, R W Palmer
Mar 5, 2003·Journal of Dairy Science·J W WestJ K Bernard
Jul 3, 2003·Journal of Dairy Science·J W West
Mar 16, 2006·Journal of Dairy Science·R J CollierM J VanBaale
Sep 9, 2006·Journal of Dairy Science·T R SmithD Pogue
Mar 21, 2007·Journal of Dairy Science·J BohmanovaJ B Cole
Sep 15, 2009·Preventive Veterinary Medicine·Charles CaraguelLarry Hammell
Jan 29, 2010·Journal of Dairy Science·J B WheelockL H Baumgard
Feb 18, 2010·Acta Veterinaria Scandinavica·Egil SimensenGeir Naess
Mar 30, 2010·Preventive Veterinary Medicine·Simon DufourDaniel T Scholl
Dec 25, 2010·Journal of Dairy Science·B C do AmaralG E Dahl
Apr 16, 2011·International Journal of Biometeorology·Ferdinando CalegariErmes Frazzi
Sep 11, 2012·Journal of Dairy Science·A C FalkM A G von Keyserlingk
Oct 4, 2012·Animal : an International Journal of Animal Bioscience·E Shoshani, A Hetzroni
Mar 19, 2013·Journal of Dairy Science·S BonkW Heuwieser
Jul 23, 2013·Climatic Change·Tiffany T SmithJulia M Gohlke
Sep 24, 2013·Journal of Dairy Science·M H C PereiraJ L M Vasconcelos
Oct 22, 2013·Journal of Dairy Science·L K SchüllerW Heuwieser
Jul 6, 2014·Journal of Dairy Science·S DikmenP J Hansen
Aug 26, 2014·Journal of Dairy Science·P Sepúlveda-VarasM A G von Keyserlingk
Dec 31, 2014·Journal of Dairy Science·X A OrtizR J Collier
Apr 13, 2015·Journal of Dairy Science·D A ShockD F Kelton
Citations
Sep 11, 2018·Journal of Dairy Science·A P LouieS S Aly
May 28, 2019·Journal of Dairy Science·E GernandC Kipp
Jun 4, 2019·Journal of Dairy Science·V OuelletÉ Charbonneau
Feb 6, 2017·International Journal of Biometeorology·Rahma BellagiDominique Pomiès
Feb 6, 2020·Journal of Dairy Science·Paige V McDonaldDaniel M Weary
Jul 1, 2019·Journal of Dairy Science·V OuelletÉ Charbonneau
Sep 15, 2020·Methods : a Companion to Methods in Enzymology·Gene WijffelsJohn Gaughan
Apr 6, 2021·PeerJ. Computer Science·Robert Winkler