EVAPORATIVE COOLING OF SOWS FOR ... - University of Arizona

Evaporative cooling of sows for the first five to seven days post breeding

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Munson, Maynard Dean, 1946-

The University of Arizona.

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04/09/2024 11:54:14



EVAPORATIVE COOLING OF SOWS FOR THE FIRST FIVE TO SEVEN DAYS POST BREEDING by Maynard Dean Munson

A Thesis Submitted to the Faculty of the DEPARTMENT OF SOILS,,WATER, AND ENGINEERING In Partial Fulfillment of the Requirements

For the Degree of MASTER OF SCIENCE WITH A MAJOR IN AGRICULTURAL ENGINEERING In the Graduate College THE UNIVERSITY OF ARIZONA

19 7 2

STATEMENT BY AUTHOR

This thesis has been submitted in partial fulfill ment of requirements for an advanced degree at The University of Arizona and is deposited in the University Library to be made available to borrowers under rules of the Library.

Brief quotations from this thesis are allowable without special permission, provided that accurate acknowl edgment of source is made. Requests for permission for extended quotation from or reproduction of this manuscript in whole or in part may be granted by the head of the major department or the Dean of the Graduate College when in his judgment the proposed use of the material is in the inter ests of scholarship. In all other instances, however, permission must be obtained from the author.

SIGNED:

APPROVAL BY THESIS DIRECTOR This thesis has been approved on the date shown below

'RANK WIERSMA Professor of Agricultural

Engineering

fj V Date

ACKNOWLEDGMENTS

The author wishes to express sincere thanks to the Arizona Hog Company in cooperation with The University of Arizona for the opportunity to conduct this study.

Special thanks is given to Bob Hanneman, Manager of the Arizona Hog Company, for his time and help in conducting the tests. Special thanks is also given to Professor Frank Wiersma, the author's advisor, for his guidance in research and preparation of the thesis. Sincere appreciation is given to my wife, Jan, whose help and encouragement will never be forgotten.

TABLE OF CONTENTS

LIST OF ILLUSTRATIONS 6 . . . . . .

Page

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LIST OF TABLES ,, 0 . . . o ?

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INTRODUCTION . ,, . . ?. ,, . , ,, ,, c ? . ? , . ? . ? ?

1

LITERATURE REVIEW

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3

Evaporative Cooling as a Means of Reducing Heat Stress ?

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7

EXPERIMENTAL PROCEDURE ,, . . . . . o. . . . . ? . o o

12

DATA AND RESULTS . .......................

22

CONCLUSION O o o o o o o . o

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Recommendations for Future Study 0 0 , 0 0 0 0 0

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28

LIST OF REFERENCES ,, ,,. , ,, . ,, ,,. ,, ,, ,, ,, . ,, , , ,, ,

30

iv

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