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 Fohrman, M. H. Search for Related Content PubMed Articles by Fohrman, M. H.

Increased Producing Ability in Dairy Cows Due to Test Conditions

Dairy Cattle Breeding Investigations, Bureau of Dairying, United States Department of Agriculture, Washington, D. C.

ABSTRACT

Men who have handled large herds of cattle where official testing is carried on are generally close observers, and the statement has been made that when cows or heifers are placed on test they usually show development and increased producing ability as a result of the feeding and handling they receive during the period of the test. It would appear to be difficult to calculate the amount of development which might be attributed to the changed conditions surrounding the cow while on test, but a recent study of Guernsey and Jersey records throws some light on this matter.

It was originally planned to study the effect of age on production of butterfat by using only records of the cows having two or more tests. The thought was that the first record measured the cow's ability at a certain age, and the second record showed her ability at a later age.