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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 ,
J. H. B. Roy ,
H. J. Sears  and
S. Y. Thompson
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
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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
Information
Journal of Dairy Research , Volume 20 , Issue 1 , February 1953 , pp. 16 - 28
Copyright
Copyright © Proprietors of Journal of Dairy Research 1953

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