Although more than 3 million head of dairy cows enter the food supply chain in the US every
year, research on this topic remains limited and scarce. Meat production from dairy cows is a …

In the present study, records on 115,291 heifers distributed in 113 herds were used to
investigate the association between age at the first calving (AFC) and lactation performance …

Abstract The United Nations estimates that the global population will total 9.7 billion in 2050.
Rapid population growth pose a significant obstacle to achieving the Sustainable …

Department of Cattle Breeding, UTP University of Science and Technology, Mazowiecka 28,
85-084 Bydgoszcz, Poland♦ Corresponding author: krezel@ utp. edu. pl abstract The …

The associations between reproductive performance, milk yield and health status with the
risk of culling, and thus with a cow's longevity, have been well documented at the individual …

Lifetime productivity is a trait of great importance to dairy cattle populations, as it combines
information from production and longevity variables. Therefore, we investigated the genetic …

The lifetime production of dairy cows is a complex trait influenced not only by genetics, but
also by the environment in which a cow lives and the management practices of the farmer …

Simple Summary From a breeding and production point of view, the length and quality of life
of dairy cows are directly determined (more or less) by voluntary decisions made by the …

The age at first calving (AFC) is one of the most used indicators to evaluate the efficiency of
rearing systems in dairy herds. The objective of the present study was to evaluate the …

Globally, the dairy industry estimates the production of 1077 million tonnes of milk by 2050,
and this estimation is influenced by a fast-growing population. However, diseases and …