With calves weaned, veterinarians criss-cross the country conducting pregnancy checks, or preg checking, cow herds. The vet calls out and marks an “O” on the hips of “open” or non-pregnant cows.
In experiments on mice, even at concentrations 100 times higher than milk from pregnant cows, blood hormone levels and reproductive organs were unaffected by dietary estrogens, report investigators in ...
UNIVERSITY PARK — Penn State Extension recently launched an online course focused on the basics of bovine reproduction and safe, efficient reproductive management practices and protocols. One of ...
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