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 HighWire Citing Articles via Google Scholar Google Scholar Articles by Mead, S. W. Articles by Regan, W. M. Search for Related Content PubMed Articles by Mead, S. W. Articles by Regan, W. M.

Deficiencies in Rations Devoid of Roughage for Calves

I. The Effect of the Addition of Cod Liver Oil and Alfalfa Ash

Division of Animal Husbandry, University of California, Davis, California

ABSTRACT

That the failure to secure continued normal growth in dairy animals reared on rations devoid of roughage results from a deficiency of Vitamin A alone or in conjunction with an inadequate supply of certain minerals, and not from a lack of roughage or bulk per se, is the conclusion to be drawn from the first of a series of experiments now being conducted by the Division of Animal Husbandry of the University of California at Davis.

Attempts have been made by a number of investigators to rear calves on milk alone or on milk plus some concentrate mixture designed to furnish all of the known requisites for their growth and well-being. Most of these experiments have failed; none has been entirely successful. The calves have either died at an early age or developed various deficiency symptoms and failed to make normal growth.

As early as 1897, Davenport (1) concluded that satisfactory growth and development could not be secured when calves were fed rations containing no roughage.

This article has been cited by other articles:

				H. H. COLE and S. W. MEAD A PHYSICAL DEFICIENCY IN THE RATION OF RUMINANTS Science, December 17, 1943; 98(2555): 543 - 544. [PDF]