The effects of various factors on the tapeworm, Hymenolepis diminuta, as indicated by the measurement of egg production in single -worm infections

123 Pages·04.062 MB·English

by  Beck, J. Walter

U M I
MICROFILMED 2003
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THE RICE INSTITUTE
The Effects of Various Factors on the Tapeworm,
Hymenolepis diminuta, as Indicated by the Measurement
of Egg Production in Single-Worm Infections
By
J, Walter Beck
A THESIS
SUBMITTED TO THE FACULTY
J IN PARTIAL FULFILLMENT OF THE
6
JL-I
REQUIREMENTS FOR THE DEGREE OF
DOCTOR OF PHILOSOPHY
a**. c «/
•Houston, Texas
June, 1950
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.
UMI Number 3079618
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UMI
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Copyright 2003 by ProQuest Information and Learning Company.
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ProQuest Information and Learning Company
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P.O. Box 1346
Ann Arbor, Ml 48106-1346
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ACKNOWLEDGMENTS
The writer wishes to express his sincere appreci­
ation to Dr. A. C. Chandler for his direction of
the problem and his helpful and timely criticism.
Appreciation is also expressed to Mrs. Evelyn K,
Hake and Mr. Glenn H. Hildebrandt for their tech­
nical assistance.
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TABLE OF CONTENTS
CHAPTER PAGE
I. INTRODUCTION 1
1. Historical Background 1
2. Statement of the Problem 5
II. MATERIALS AND METHODS 7
III. RESULTS 13
1. Onset and subsequent course of
egg production 13
a. In normal female and male
rats on complete diet. 13
b. In normal female and male
rats on deficient diet 20
c. In castrated male rats on
complete diet 23
2. Growth and reproduction of tapeworms
in normal male and female rats on
complete and deficient diets. 25
3. Effect of hormones, vitamins and bile
on egg production in normal and cas­
trated male and female rats on com­
plete and deficient diets. 27
a. Hormones 27
1. Testosterone in castra­
ted male rats on defi­
cient diet 28
2. Testosterone in normal
female rats on deficient
diet 31
3. Progesterone in castrated
male rats on deficient
diet 32
4. Progesterone in normal fe­
male rats on deficient
diet 33
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2
CHAPTER PAGE
III.
3
a.
5. Antuitrin-S in normal and cas­
trated male rats on deficient
diet 34
6. Antuitrin-S in normal and cas­
trated female rats on deficient
diet 37
b. Vitamins
1. Vitamin B]_2 ia normal female rats
on deficient diet 40
c. Bile
1. Male dog bile in normal male rats
on deficient diet 42
2. Male dog bile in normal female
rats on deficient diet 43
IV. GENERAL DISCUSSION 45
V. SUMMARY AND CONCLUSIONS 55
LITERATURE CITED
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