Environmental heat stress, present during warm seasons and warm episodes, severely
impairs dairy cattle performance, particularly in warmer climates. It is widely viewed that …

Abstract Performance traits of Holstein Friesian maintained at Agricultural University Dairy
Farm Peshawar from 1999 to 2008 were studied to investigate the effect of sire, parity …

The premises for the potential success of molecular breeding is the ability to identify major
genes associated with important dairy related traits. The present study was taken up with the …

This study was carried out to investigate genetic, non-genetic affecting factors and estimate
genetic parameters for milk production and reproductive traits of Holstein cows via animal …

India has about 39.73 million crossbred cattle out of total 190.90 million (37.28%) cattle
population as per the all India livestock census, 2012. The decade wise trend in livestock …

Present study was carried out with the aim to determine the effect of genetic and non-genetic
factors on milk production efficiency traits and their genetic control. Data on milk production …

Genotype has a significant effect on biological efficiencies of dairy cows. Environmental
changes affect differently between different genotypes of animals. A biometrical study was …

This study aimed to investigate the factors affecting reproductive traits using records
collected during two calving seasons (2016-2017) and (2017-2018) from three herds of …

A total of 956 lactation records of Holstein cows kept at Kaa Albon station, Imuran
Governorate, Yemen during the period from 1991 to 2003 were used to investigate the effect …

A total number of 2854 lactation records of 699 Friesian cows sired by 80 bulls, during the
period from 1985 to 2014 were used in this study to investigate of month and year of calving …