Global demand for livestock products is expected to double by 2050, mainly due to
improvement in the worldwide standard of living. Meanwhile, climate change is a threat to …

The effects of climate change are controversial. This paper reviews the effects of climate
change on livestock following the theory of global warming. Although, the effects of global …

Environmentally induced periods of heat stress decrease productivity with devastating
economic consequences to global animal agriculture. Heat stress can be defined as a …

In the current era of genomic selection, there is an increased demand to collect semen from
genomically selected sires at a young age. The objective of this study was to assess the …

Fertility is a critically important factor in cattle production because it directly relates to the
ability to produce the offspring necessary to offset costs in production systems. Female …

More than 90% of the breeding stock of Austrian dual purpose Simmental cows is artificially
inseminated. Knowledge of factors affecting sperm production and semen quality is of …

Currently, the world is facing the negative impact of global warming on all living beings.
Adverse effects of global warming are also becoming obvious in dairy cattle breeding. In …

Each species, breed or animal category, correlated with its physiological state, has a comfort
zone, in which the energy expenditure of the animal is minimal, constant and independent of …

Abstract Aflatoxin B1 (AFB1) is an unavoidable environmental pollutant commonly found in
feed and foodstuffs. It is the most toxic one of all the aflatoxins, which can cause severe …

The effects of ambient temperature and humidity, month, age and genotype on sperm
production and semen quality in AI bulls in Brazil were evaluated. Data from two consecutive …