farmerjan
Well-known member
Agree that with her leaking, she would have lost some of the colostrum... BUT.... 1st calf heifers often do not have the same thickness or color to their colostrum as older cows. They do not have the age to have the same amount of antibodies in that colostrum. One of the dairies that I tested, and used to milk part-time on, had an arrangement with their vet... they supplied colostrum to the vet office... they then had it for clients that needed it sometimes.. They tested it's "strength" with a colostometer thing... and never kept colostrum from heifers as it never tested that strong . It is still way better than no colostrum, and is by no means useless... but just does not have the same quantity of antibodies that an older cow has.
I have seen some fairly white looking colostrum test pretty good, and some thick yellow stuff not test much...
But as a rule, on AVERAGE, a first calf heifer will not have the thickness or the yellow color that an older cow will have with her colostrum.
On average, dairies tend to keep a fresh cow out of the tank for 5-6 milkings... as the colostrum is completely gone... and any possibility of dry cow treatment is milked out... Most heifers are not dry treated since they have never previously been in milk... unless on occasion one had mastitis for some obscure reason while a heifer... and there are quite a few farms that will put milk from a fresh heifer, in the tank after 3 or 4 milkings because it is white and more flowing.
I have seen some fairly white looking colostrum test pretty good, and some thick yellow stuff not test much...
But as a rule, on AVERAGE, a first calf heifer will not have the thickness or the yellow color that an older cow will have with her colostrum.
On average, dairies tend to keep a fresh cow out of the tank for 5-6 milkings... as the colostrum is completely gone... and any possibility of dry cow treatment is milked out... Most heifers are not dry treated since they have never previously been in milk... unless on occasion one had mastitis for some obscure reason while a heifer... and there are quite a few farms that will put milk from a fresh heifer, in the tank after 3 or 4 milkings because it is white and more flowing.