Prospects for gene introgression or gene editing as a strategy for reduction of the impact of heat stress on production and reproduction in cattle

PJ Hansen - Theriogenology, 2020 - Elsevier
In cattle, genetic variation exists in regulation of body temperature and stabilization of
cellular function during heat stress. There are opportunities to reduce the impact of heat …

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 …

Genetic Diversity and Population Genetic Structure of a Guzerá (Bos indicus) Meta-Population

MGCD Peixoto, MRS Carvalho, AA Egito, RS Steinberg… - Animals, 2021 - mdpi.com
Simple Summary The Guzerá breed is one of the most relevant animal genetic resources for
tropical and extreme environments, that is, low and high temperatures, and dry or humid …

NASA POWER satellite meteorological system is a good tool for obtaining estimates of the temperature-humidity index under Brazilian conditions compared to INMET …

ER Carrara, PS Lopes, ACZ Reis, JX Silva… - International Journal of …, 2023 - Springer
Heat stress negatively affects livestock, with undesirable effects on animals' production and
reproduction. Temperature and humidity index (THI) is a climatic variable used worldwide to …

Genetics of tolerance to heat stress in milk yield of dairy buffaloes assessed by a reaction norm model

G Stefani, ML Santana Júnior, L El Faro… - Journal of Animal …, 2022 - Wiley Online Library
The objectives of this study were to assess the effects of heat stress on the milk yield and
investigate the presence of genotype× environment interaction (G× E) in Brazilian Murrah …

[HTML][HTML] Genotype by climate zone interactions for fertility, somatic cell score, and production in Iranian Holsteins

F Atrian-Afiani, H Gao, S Joezy-Shekalgorabi… - Journal of Dairy …, 2021 - Elsevier
The objective of this study was to investigate genetic variation and genotype by environment
(G× E) interactions for fertility (including age at first calving and calving interval), somatic cell …

Assessment of runs of homozygosity, heterozygosity‐rich regions and genomic inbreeding estimates in a subpopulation of Guzerá (Bos indicus) dual‐purpose cattle

ER Carrara, PS Lopes, R Veroneze… - Journal of Animal …, 2024 - Wiley Online Library
For decades, inbreeding in cattle has been evaluated using pedigree information.
Nowadays, inbreeding coefficients can be obtained using genomic information such as runs …

Análise e disponibilização de mapas mensais do Índice de Temperatura e Umidade (ITU) para o Sudeste do Brasil: Analysis and availability of monthly maps of the …

RG Andrade, LCS Garcia, MC Hott… - … Journal of Animal …, 2023 - ojs.brazilianjournals.com.br
O Brasil está entre os cinco maiores produtores de leite do mundo. Em 2021 a produção
nacional foi de 35, 3 bilhões de litros de leite, desse total, 34% se refere ao leite produzido …

Genetic study of reproductive, dairy and growth traits in Guzerá cattle

ER Carrara - 2022 - locus.ufv.br
The Guzerá breed is an important Brazilian genetic resource and has been widely used as a
pure breed and in crossbreeding strategies to produce animals adapted to tropical climatic …

ZONEAMENTO DOS EFEITOS DO ESTRESSE TÉRMICO EM VACAS LEITEIRAS NO SUDESTE DO BRASIL

RG Andrade, LCS Garcia, MC Hott… - Revista …, 2023 - ojs.revistacontemporanea.com
Alterações metabólicas e comportamentais em vacas leiteiras podem ser induzidas sob
condições adversas de estresse térmico. Neste estudo, objetivou-se estabelecer um …