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 aim of the study was to evaluate the effect of age at first calving on functional traits–
longevity and productive life in dairy cows. The survey included 1490 Holstein cows from 5 …

The aim of the study was to analyze the relationship between first lactation milk yield (FLMY)
and age at first calving (AFC), longevity and productive life in dairy cows. The study covered …

The age of first calving is one of the main factors influencing the total milk in cows on first
lactation. From the factor “age” depends on the realization of genetic potential for high milk …

The objective of the present study was to investigate the associations between age at first
calving and reproductive performance in Holstein dairy cattle. A total of 4655 reproductive …

This study was to evaluate the conception rate of yearling dairy heifer at PT. Ultra
Peternakan Bandung Regency following artificial insemination with PGF2α-induced estrus …

This study investigates beef cattle's breeding profile and reproductive performance kept by
smallholder farms in Monta District, Bima Regency, West Nusa Tenggara Province. In-depth …

This study aimed to determine the reproduction performance of Ongole grade cows and its
crossbreds in Pacitan district, East Java province, Indonesia including the age of first mating …

The primary data used an actual study on 874 Friesian cows management from birth to end
lifetime production was collected of El-Karada and Sakha Farms pertain to the Animal …

The aim of this thesis was to evaluate alternative management options for the smallholder
dairy cattle production system in South Africa (SA). Specific objectives included, were to …