The present study has been conducted to evaluate the effect of intramuscular administration of vitamin A during dry period in pregnant dairy cows which have already received it in their daily ration on vitamin A status of neonatal calves.Single intramuscular injection of 2000000 IU vitamin A was carried in 10 dairy cows at 7 months of pregnancy (group 1) and in another 10 dairy cows at 8 months...

Cows will typically experience a 30 to 35% reduction in feed intake during the final two to three weeks prior to calving. Blood fatty acids at calving are negatively related to feed intake and positively related to incidence of postpartum metabolic disorders. Feed and manage cows to maximize feed intake during the transition period. Over conditioned cows are likely to have poor appetites, but d...

Viruses have evolved a multitude of strategies for infiltrating their genome into host cells. Enveloped viruses such as herpesvirus and poxviruses wrap their genetic payload within a protein shell, or capsid, which itself is swathed in a lipid membrane that can fuse with a target cell’s outer membrane. Other viruses, such as tailed bacteriophages, use a more complex mechanism: they inject their...

When I invited Elaine Strass for an interview, I had no idea she was planning to retire in the coming year. Elaine has been the hidden force behind both the Genetics Society of America (GSA) and the American Society of Human Genetics (ASHG) for almost 20 years, by serving as Executive Director for both organizations. Fresh, articulate, and cheerful, Elaine (see Image 1) has a lightning wit, gre...