Causes of declining fertility in dairy cows during the warm season

F De Rensis, F Lopez-Gatius, I García-Ispierto, G Morini… - Theriogenology, 2017 - Elsevier
Abstract In the Northern Hemisphere, from June to September and in the Southern
Hemisphere from December to March, there are periods of reduced fertility (sub-fertility) in …

Physiological mechanisms through which heat stress compromises reproduction in pigs

JW Ross, BJ Hale, JT Seibert… - Molecular …, 2017 - Wiley Online Library
Seasonal variations in environmental temperatures impose added stress on domestic
species bred for economically important production traits. These heat‐mediated stressors …

Reproductive physiology of the heat-stressed dairy cow: implications for fertility and assisted reproduction

PJ Hansen - Animal Reproduction, 2019 - SciELO Brasil
Heat stress causes a large decline in pregnancy success per insemination during warm
times of the year. Improvements in fertility are possible by exploiting knowledge about how …

Physiological consequences of heat stress in pigs

JW Ross, BJ Hale, NK Gabler, RP Rhoads… - Animal Production …, 2015 - CSIRO Publishing
Heat stress negatively influences the global pork industry and undermines genetic,
nutritional, management and pharmaceutical advances in management, feed and …

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 …

Dynamics of DNA methylation during early development of the preimplantation bovine embryo

KB Dobbs, M Rodriguez, MJ Sudano, MS Ortega… - PloS one, 2013 - journals.plos.org
There is species divergence in control of DNA methylation during preimplantation
development. The exact pattern of methylation in the bovine embryo has not been …

[HTML][HTML] The WNT signaling antagonist Dickkopf-1 directs lineage commitment and promotes survival of the preimplantation embryo

AC Denicol, J Block, DE Kelley, KG Pohler… - The FASEB …, 2014 - ncbi.nlm.nih.gov
Successful embryonic development is dependent on factors secreted by the reproductive
tract. Dickkopf-1 (DKK1), an antagonist of the wingless-related mouse mammary tumor virus …

Mitigation of the heat stress impact in livestock reproduction

G Krishnan, M Bagath, P Pragna, MK Vidya… - …, 2017 - books.google.com
Heat stress affects the fertility and reproductive livestock performance by compromising the
physiology reproductive tract, through hormonal imbalance, decreased oocyte quality and …

Use of embryo transfer to alleviate infertility caused by heat stress

PS Baruselli, RM Ferreira, LM Vieira, AH Souza, GA Bó… - Theriogenology, 2020 - Elsevier
Heat stress (HS) has a pronounced deleterious effect on fertility in dairy herds throughout
the world, especially in hot and humid summer months in tropical and subtropical areas …

Effects of heat stress on bovine preimplantation embryos produced in vitro

M Sakatani - Journal of Reproduction and Development, 2017 - jstage.jst.go.jp
Summer heat stress decreases the pregnancy rate in cattle and has been thought to be
associated with the early embryonic death caused by the elevation of maternal body …