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 Perkins, J. R. Articles by Seath, D. M. Search for Related Content PubMed Articles by Perkins, J. R. Articles by Seath, D. M.

A Study of 1,000 Bovine Genitalia¹

Kentucky Agricultural Experiment Station, Lexington

ABSTRACT

Infertility in dairy cattle is one of the more serious problems facing dairymen today. Trimberger and Davis (9) have estimated that about 6% of the cows are sterile and that about 14% of those which do conceive require three or more services. Financial losses occur when valuable animals must be sold as nonbreeders. Fewer calves and less milk are produced when calving intervals exceed 12 months.

The present study was made in order to: (a) gain information regarding the variation to be expected in the normal size of reproductive organs in cows; (b) confirm and expand information regarding the establishment of fetal membranes; (c) correlate the size of the fetus with the diameter of the uterus, as an aid in estimating the stage of gestation by rectal palpation in live cows; and (d) tabulate the frequency of gross abnormalities in the female reproductive organs.

EXPERIMENTAL PROCEDURE

The data for this study were gathered from the examination of the reproductive tracts of 1,000 slaughter-house cows and heifers.

¹ The investigation reported in this paper is in connection with a project of the Kentucky Agricultural Experiment Station and is published by permission of the Director.