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More than 960 dairy herds nationwide have been affected so far, and the federal government requires all lactating dairy cattle to be tested for bird flu before being moved across state lines.
A new strain of the H5N1 bird flu virus was detected in dairy cows, but the risk of human transmission remains low. The nation’s milk supply is safe because pasteurization kills the bird flu virus.
A dozen more dairy herds in California have been stricken with bird flu as the virus continues to infect animals and humans around the U.S.. Nearly 700 herds in the state — or 71 percent of all ...
To produce milk from dairy cattle, most calves are separated from their mothers soon after birth and fed milk replacement in order to retain the cows' milk for human consumption. [156] Animal welfare advocates are critical of this practice, stating that this breaks the natural bond between the mother and her calf. [156]
Of the 9 million dairy cows in the U.S., approximately 90% of them are of the Holstein descent. [66] The top breed of dairy cow within Canada's national herd category is Holstein, taking up 93% of the dairy cow population, have a production rate of 10,257 kilograms (22,613 lb) of milk per cow that contains 3.9% butter fat and 3.2% protein [8]
Male dairy calves are commonly used for veal production as they do not lactate and are therefore surplus to the requirements of the dairy industry. Newborn veal calves are generally separated from the cow within three days. [10] [2] Calves are sometimes raised in individual stalls for the first several weeks as a sort of quarantine, [10] and ...
In one case, a vet reported having practiced only in Georgia (on dairy cows) and South Carolina (on poultry) — two states that have not reported H5N1 infections in dairy cows.
Twice-a-day milking is the most common milking schedule of dairy cattle. In Europe, Australia, and New Zealand, milking at 10- to 14-hour intervals is common. [22] Higher cow potential (100% Holstein herds): European Friesian types traditionally had lower production performances than their North American Holstein counterparts.