@conference {40831,
	title = {Reduction in SCC and colostrum levels in milk after calving},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {56},
	year = {1996},
	month = {Jan},
	pages = {263-265},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Somatic cell count (SCC) and immunoglobulin G1 (IgG1) content  were determined in mammary secretions of 15 Friesian x Jersey cows and 5  heifers at each milking for 10 d following natural calving. Milk yields for  cows on d 1 were 20.2 l/d, declined sharply on d 2 to 14.4 l/d, then increased  slightly, reaching 17.9 l/d by d 10. In contrast, heifer milk yields were low  on d 1 (6.6 l/d) but increased steadily to 11.9 l/d by d 10. The SCC and IgG1  levels were extremely high on d 1 (1.50 x106 cells/ml and 24.0 g/l IgG1) but  declined rapidly within 48 h of calving. Average SCC and IgG1 reduced  below the penalty levels by d 4 for cows, and d 5 for heifers, confirming that  milk should be withheld from the bulk tank for 4 d and 5 d after calving for  cows and heifers respectively. Individual cows may exceed these levels for  short periods.},
	issn = {1176-5283},
	author = {Lacy-Hulbert SJ and Malcolm DB and Copeman PJA and Woolford MW and Franks R}
}
