Viruses were extremely âpopularâ in the â90s, which is when the term âAntivirusâ became common, but today viruses are the minority when it comes to malware. There are, however, a few at-large viruses currently evolving and spreading, these include âSalityâ and âVirutâ.
Thatâs especially true when it comes to the leg labeled health, and thatâs reason enough, Baker says, to consider vaccinating your calves at branding or turnout. Traditionally, the recommendation has been to wait until calves are at least four months old before administering any vaccines. That way, goes the conventional wisdom, thereâs a reduced chance that the antibodies in the colostrum will cancel the effects of the vaccine.
Most calves are weaned between 120 and 290 days (3 to 10 months) after birth, but most producers like to wean their calves when they're around 205 (6 months) of age.Weight is also a factor, with the minimum being generally around 132lb (60kg). Calves may have to be weaned when they are at least 120 days of age, early enough so they don't pull their dams down too much. 2  Kick the cows out to rougher pasture (or supplement them with grass hay or more marginal feeds) while you keep the calves on better pasture until sale time.