Heat stress effects on milk yield traits and metabolites and mitigation strategies for dairy cattle breeds reared in tropical and sub-tropical countries

V Habimana, AS Nguluma, ZC Nziku… - Frontiers in Veterinary …, 2023 - frontiersin.org
Heat stress is an important problem for dairy industry in many parts of the world owing to its
adverse effects on productivity and profitability. Heat stress in dairy cattle is caused by an …

An appropriate genetic approach for improving reproductive traits in crossbred Thai–Holstein cattle under heat stress conditions

A Fathoni, W Boonkum, V Chankitisakul… - Veterinary …, 2022 - mdpi.com
Thailand is a tropical country affected by global climate change and has high temperatures
and humidity that cause heat stress in livestock. A temperature–humidity index (THI) is …

Thermotolerance indicators related to production and physiological responses to heat stress of holstein cows

H Amamou, Y Beckers, M Mahouachi… - Journal of thermal …, 2019 - Elsevier
Heat stress (HS) adversely influences dairy cattle welfare and productivity. This study aimed
to investigate the effects of HS on production and physiological parameters of Holstein cows …

[HTML][HTML] Genetic analysis of resilience indicators based on milk yield records in different lactations and at different lactation stages

M Poppe, G Bonekamp, ML Van Pelt, HA Mulder - Journal of Dairy Science, 2021 - Elsevier
Resilience is the ability of cows to cope with disturbances, such as pathogens or heat
waves. To breed for improved resilience, it is important to know whether resilience …

[HTML][HTML] Estimation of maximum thermo-hygrometric index thresholds affecting milk production in Italian Brown Swiss cattle

A Maggiolino, GE Dahl, N Bartolomeo… - Journal of Dairy …, 2020 - Elsevier
It is known that heat stress affects dairy cow performance in multiple ways: physiological,
behavioral, reproductive, and productive. The aim of the present study was to determine if a …

Breeding and genetics symposium: Breeding for resilience to heat stress effects in dairy ruminants. A comprehensive review

MJ Carabaño, M Ramón, C Díaz… - Journal of Animal …, 2017 - academic.oup.com
Selection for heat tolerant (HT) animals in dairy production has been so far linked to
estimation of declines in production using milk recording and meteorological information on …

[HTML][HTML] Genotype-by-environment (temperature-humidity) interaction of milk production traits in Australian Holstein cattle

EK Cheruiyot, TTT Nguyen, M Haile-Mariam… - Journal of dairy …, 2020 - Elsevier
Dairying in Australia is practiced in highly diverse climatic conditions and production
systems, which means that re-ranking of genotypes could occur across environments that …

Genetics of heat tolerance for milk yield and quality in Holsteins

ML Santana Jr, AB Bignardi, RJ Pereira, G Stefani… - Animal, 2017 - cambridge.org
Tropical and sub-tropical climates are characterized by high temperature and humidity,
during at least part of the year. Consequently, heat stress is common in Holstein cattle and …

[HTML][HTML] A comprehensive meta-analysis of genetic parameters for resilience and productivity indicator traits in Holstein cattle

JM Maskal, VB Pedrosa, HR de Oliveira, LF Brito - Journal of Dairy Science, 2024 - Elsevier
Selection for resilience indicator (RIND) traits in Holstein cattle is becoming an important
breeding objective as the worldwide population is expected to be exposed to increased …

[HTML][HTML] Prediction accuracies and genetic parameters for test-day traits from genomic and pedigree-based random regression models with or without heat stress …

M Bohlouli, S Alijani, S Naderi, T Yin, S König - Journal of dairy science, 2019 - Elsevier
The aim of this study was to compare genetic (co) variance components and prediction
accuracies of breeding values from genomic random regression models (gRRM) and …