The impact of heat load on cattle

AM Lees, V Sejian, AL Wallage, CC Steel, TL Mader… - Animals, 2019 - mdpi.com
… The susceptibility of feedlot cattle to heat load has been emphasized during prolonged heat
… [96] suggest that cooling cows for 42 days did not alleviate the impact of heat load on oocyte …

Dynamic responses of cattle to thermal heat loads

GL Hahn - Journal of animal science, 1999 - academic.oup.com
… for growing cattle allowed to consume their diets on an ad libitum basis. This indicates that,
for our experimental animals and in thermal environments without large radiant heat loads, a …

A new heat load index for feedlot cattle

JB Gaughan, TL Mader, SM Holt… - Journal of Animal …, 2008 - academic.oup.com
… in predicting PS responses of different cattle genotypes during periods of high heat load. …
the cumulative effects of heat load, natural cooling, or both. Cattle may accumulate heat during …

Developing a heat load index for lactating dairy cows

JC Lees, AM Lees, JB Gaughan - Animal Production Science, 2018 - CSIRO Publishing
impact of heat load on lactating dairy cattle. The aim of the present study was to develop a
dairy heat load index (DHLI), based on the physiological responses of lactating dairy cows to …

Feeding strategies for managing heat load in feedlot cattle

TL Mader, SM Holt, GL Hahn, MS Davis… - Journal of Animal …, 2002 - academic.oup.com
… - vs light-colored cattle under hot conditions. Limit-feeding feedlot cattle during early summer
… animal comfort by alleviating the combined effects of high climatic and metabolic heat load. …

Effects of the daily heat load duration exceeding determined heat load thresholds on activity traits of lactating dairy cows

J Heinicke, G Hoffmann, C Ammon, B Amon… - Journal of thermal …, 2018 - Elsevier
… -yielding dairy cows. Furthermore, we studied how the activity of the cows to heat load was
influenced by the daily heat load duration which exceeded the heat load we had determined …

[HTML][HTML] Heat load increases the risk of clinical mastitis in dairy cattle

A Vitali, A Felici, AM Lees, G Giacinti, C Maresca… - Journal of dairy …, 2020 - Elsevier
… the association between health outcomes and periods of heat load in dairy cattle. Therefore,
the present study investigated the effect of heat load on the occurrence of generic and …

Cow individual activity response to the accumulation of heat load duration

J Heinicke, S Ibscher, V Belik, T Amon - Journal of thermal biology, 2019 - Elsevier
… investigate the cow individual activity response to heat load in terms of the heat load duration
… In addition to the heat load on the measurement day, we studied the cow individual activity …

Impact of heat stress on conception rate of dairy cows in the moderate climate considering different temperature–humidity index thresholds, periods relative to …

LK Schüller, O Burfeind, W Heuwieser - Theriogenology, 2014 - Elsevier
… dairy cows, to estimate a threshold for this relationship, and to identify periods of exposure
to heat … In addition, we compared three different heat load indices related to CR: mean THI, …

[PDF][PDF] Review of current assessment of cattle and microclimate during periods of high heat load

JB Gaughan, TL Mader, SM Holt, GL Hahn… - Anim. Prod …, 2002 - researchgate.net
… This paper reviews methods of assessing cattle exposed to high heat load conditions, and
methods of monitoring the climatic factors, which predispose these animals to heat stress. …