The methylation status of sperm DNA differs between individual bulls. However, the relationship between methylation status and bull sperm parameters is not well elucidated. The present study investigated genome-wide methylation profiles at 450,000 CpG sites in bull spermatozoa by using a human DNA methylation microarray. Semen samples from three adult Japanese Black bulls with different in vitr...

In general the importance of functional traits is increasing in all dairy cattle populations over the last decade. Beside udder and fertility problems claw and foot disorders are main involuntary culling reasons. Linear description of feet and leg traits in the frame of conformation scoring didn’t reduce claw and leg problems as expected. Therefore new ways of data recording should be establish...

Polymyxin B effects on motility parameters of cryopreserved bull semen Mojtaba Rashedi, Mohammad Hashem Fazeli, Hamid Gholami, Mohammad Bahreini Young Researchers and Elites Club, Faculty of Veterinary Medicine, Islamic Azad University, Shahrekord Branch, Shahrekord, Iran Department of Clinical Science, Faculty of Veterinary Science, Islamic Azad University, Shahrekord Branch, Shahrekord, Iran ...

BACKGROUND Bullying (Bull) is a public health problem worldwide, and Mexico is not exempt. However, its epidemiology and early detection in our country is limited, in part, by the lack of validated tests to ensure the respondents' anonymity. The aim of this study was to validate a self-administered test (Bull-M) for assessing Bull among high-school Mexicans. METHODS Experts and school teacher...

Stray animals with incorrect microchip details are less likely to be reclaimed, and unclaimed strays are at increased risk of euthanasia. A retrospective cohort study was performed using 394,747 cats and 904,909 dogs registered with Australia's largest microchip database to describe animal characteristics, determine whether annual email reminders increased the frequency that owners updated thei...

A total of 5,909 scrotal circumference and 5,373 tesricular consistency (tonometer) measurements were made on Holstein bulls in seven artificial insemination studs. Comparable measurements were made on 339Angus bulls. The multiple regression equation, Y = -4.67 + 47.26 log X 1 1 . 7 4 (log X)2), where ~f is scrotal circumference in cm and X is bull age in months, described the high rate of test...

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