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495. The effect of prepartum milking on the composition of the prepartum and postpartum secretions of the cow

Published online by Cambridge University Press:  01 June 2009

S. J. Rowland
Affiliation:
National Institute for Research in Dairying, University of Reading
J. H. B. Roy
Affiliation:
National Institute for Research in Dairying, University of Reading
H. J. Sears
Affiliation:
National Institute for Research in Dairying, University of Reading
S. Y. Thompson
Affiliation:
National Institute for Research in Dairying, University of Reading

Extract

Eleven Shorthorn cows were milked for 14 days before their expected calving date. The total amount of prepartum secretion varied, between cows, from 1 to 961.

Determinations of total solids, fat, solids-not-fat, lactose, total protein, ash, calcium, phosphorus, chloride, casein, albumin, globulin, proteose-peptone, N.P.N., vitamin A and carotenoids were made regularly on the secretions of eight of these cows during the prepartum period, and for 4 days postpartum; and, for comparison, on five samples of Short-horn colostrum each representing the total secretion obtained from the two milkings within the first 24 hr. after calving.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1953

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