Heat Stress from Calving to Mating: Mechanisms and Impact on Cattle Fertility.

Animal production is a core sector to solve the increasing food demand worldwide, with productivity severely affected by climate change. Experts are predicting huge global productive losses in animal-derived products. Moreover, productive loss affects the economy, and the US dairy industry has reported losses of 1.

Effects of seasonal chronic heat stress on body thermoregulation, cortisol release and uterine health in postpartum native Alentejana and Mertolenga beef cattle.

Selection towards resilience to heat is a main goal to mitigate Heat Stress (HS) effects. Resilient breeds entail a genetic pool to uncover novel thermoregulatory mechanisms. This study evaluated the response to seasonal chronic HS and mechanisms behind thermo-resistance in two heat-resilient native cattle breeds.

Extended-Spectrum β-Lactamase-Producing in Dogs from Cape Verde and São Tomé and Príncipe: Implications for Public Health.

Antimicrobial resistance is a growing global threat, with surveillance providing essential information to control its spread and support rational treatment strategies. , a member of the Gram-negative Enterobacteriaceae family, frequently develops resistance mechanisms. This study analyzed 195 rectal swabs from companion and stray dogs in Santiago and São Nicolau (Cape Verde) and São Tomé and Príncipe, sampled during a neutering and deworming campaign conducted by Veterinary Without Borders Portugal, to detect extended-spectrum β-lactamase (ESBL)-producing bacteria.

Impact of Heat Stress on Bovine Sperm Quality and Competence.

Global warming has negatively influenced animal production performance, in addition to animal well-being and welfare, consequently impairing the economic sustainability of the livestock industry. Heat stress impact on male fertility is complex and multifactorial, with the fertilizing ability of spermatozoa affected by several pathways. Among the most significative changes are the increase in and accumulation of reactive oxygen species (ROS) causing lipid peroxidation and motility impairment.