HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Shaw, A. O. Articles by Beam, A. L. Search for Related Content PubMed Articles by Shaw, A. O. Articles by Beam, A. L.

The Effect of Mastitis Upon Milk Production

Dairy Department, The Pennsylvania State College, State College, Penna.

ABSTRACT

It is generally accepted that each quarter of a cow's udder functions as a separate physiological unit. Parks (1) has given figures for the minimum, the maximum, and the differences in calcium content of milk from each quarter of the udder of five cows. Benton (2), after studying the subject of coagulation, presented values for pH and percentage of butter-fat from different quarters of the same udder and concluded that each quarter of a cow's udder is a separate physiological unit. Mattick and Hallett (3) determined the yield, titratable acidity, hydrogen-ion concentration, time of rennet coagulation, total nitrogen, casein nitrogen, amount of butterfat, total solids, and ash content of the milk from different quarters of the same udder. They found wide differences in the results of these determinations in the milk produced by the front and rear quarters, and significant differences when a comparison was made between the secretion from the opposite front, or the opposite rear quarters.