[HTML][HTML] Invited review: Physiological and behavioral effects of heat stress in dairy cows

CA Becker, RJ Collier, AE Stone - Journal of dairy science, 2020 - Elsevier
Animal welfare can be negatively affected when dairy cattle experience heat stress.
Managing heat stress has become more of a challenge than ever before, due to the …

The impact of heat load on cattle

AM Lees, V Sejian, AL Wallage, CC Steel, TL Mader… - Animals, 2019 - mdpi.com
Simple Summary It is well known that the thermal environment has an integral role in
maintaining the health and productivity of cattle. Although cold stress has been identified to …

Metabolic and hormonal acclimation to heat stress in domesticated ruminants

U Bernabucci, N Lacetera, LH Baumgard, RP Rhoads… - Animal, 2010 - cambridge.org
Environmentally induced periods of heat stress decrease productivity with devastating
economic consequences to global animal agriculture. Heat stress can be defined as a …

Heat stress in lactating dairy cows: a review

CT Kadzere, MR Murphy, N Silanikove… - Livestock production …, 2002 - Elsevier
Our objective was to provide a review of factors influencing heat stress in lactating dairy
cows and how it affects milk production. In warmer parts of the world, during summer months …

[HTML][HTML] Comparison of the effects of heat stress on milk and component yields and somatic cell score in Holstein and Jersey cows

DL Smith, T Smith, BJ Rude, SH Ward - Journal of dairy science, 2013 - Elsevier
The objectives of this retrospective study were to (1) investigate the effects of heat stress
(HS) climatic conditions and breed on milk and component yield for Holstein and Jersey …

Effects of environmental temperature and humidity on milk composition, microbial load, and somatic cells in milk of Holstein dairy cows in the northeast regions of Iran

A Toghdory, T Ghoorchi, M Asadi, M Bokharaeian… - Animals, 2022 - mdpi.com
Simple Summary Livestock performance is influenced by different elements due to the
complex interactions between the individual animals and environmental conditions such as …

Relationships between milk protein polymorphisms and major milk constituents in Holstein-Friesian cows

KF Ng-Kwai-Hang, JF Hayes, JE Moxley… - Journal of dairy …, 1986 - Elsevier
Abstract Milk samples from 1,908 Holstein Friesian cows were phenotyped for genetic
variants of α s1-casein, β-casein, κ-casein, and β-lactoglobulin. The relationships between …

Genetic parameters for yield and reproductive traits of Holstein and Jersey cattle in Florida

MS Campos, CJ Wilcox, CM Becerril, A Diz - Journal of Dairy Science, 1994 - Elsevier
Records of yield and reproduction from 4293 Holstein and 2143 Jersey first lactation cows
from eight Holstein and six Jersey herds were utilized to evaluate genetic parameters for …

Genetic parameters for yield traits of Holsteins, including lactose and somatic cell score

RD Welper, AE Freeman - Journal of Dairy Science, 1992 - Elsevier
First lactation milk, fat, protein, and lactose yields and percentage yields were analyzed
using a multiple-trait sire model including herd-year-season, sire group, and age of cow as …

Effects of relative humidity, maximum and minimum temperature, pregnancy, and stage of lactation on milk composition and yield

LA Rodriquez, G Mekonnen, CJ Wilcox, FG Martin… - Journal of Dairy …, 1985 - Elsevier
Composite monthly single-day milk samples from the Florida Agricultural Experiment Station
dairy herd 1959 to 1974 were analyzed for composition. Data were 22, 972 observations on …