J. Anim Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J. Anim Sci. 1970. 30:960-965.
© 1970 American Society of Animal Science
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Rich, T. D.
Right arrow Articles by Alliston, C. W.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Rich, T. D.
Right arrow Articles by Alliston, C. W.

Influence of Programmed Circadian Temperature Changes on the Reproductive Performance of Rabbits Acclimated to Two Different Temperatures1

T. D. Rich2,3, and C. W. Alliston

Purdue University,4 Lafayette, Indiana

Abstract

The influence of high ambient temperature upon reproductive processes has been clearly illustrated in some domestic animals (rat, Fernandez-Cano, 1958; mouse, Ogle, 1934; rabbit, Alliston, Howarth and Ulberg, 1965; Burfening and Ulberg, 1966; sheep, Alliston and Ulberg, 1961, Dutt, 1964; and swine, Edwards et al., 1968 and Teague, Roller and Grifo, 1968). The effects of high temperature on pregnancy and embryonic survival vary with the species, temperature, period of exposure, gestation length and stage of pregnancy (Hafez, 1964). In rats, stage of acclimatization has also been suggested to influence the reproductive response to a thermal stress (Macfarlane, Pennycuik and Thrift, 1957).

Previous investigations concerned with the influence of heat stress upon reproduction have been conducted with 24-hr. constant environmental conditions. Such conditions do not duplicate the normal circadian variation of outdoor conditions and, therefore, the possibility exists that the reported responses do not agree with the responses under more variabie conditions.

Footnotes

1 This investigation was supported in part by Public Health Service Research Grant HD 03009-03, from the National Institute of Child Health and Human Development. Published as Journal Paper No. 3853, Purdue University Agricultural Experiment Station.

2 David Ross Fellow, Purdue Research Foundation, Grant No, 5088, Lafayette, Indiana 47907.

3 Present address: Animal Science Department, South Dakota State University, Brookings 57006.

4 Department of Animal Sciences.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1970 by the American Society of Animal Science.