Effects of photoperiod on some reproductive organs and endocrine glands of young rams : a thesis presented in partial fulfilment of the requirements for the degree of Master of Agricultural Science at Massey University

Copyright is owned by the Author of the thesis. Permission is given for

a copy to be downloaded by an individual for the purpose of research and

private study only. The thesis may not be reproduced elsewhere without

the permission of the Author.

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The author herein the academic ce and technical assistance of the following persons:-

Dr • • F. McDonald (u ), Professor D. 3. Flux (bioassays), Dr.

F. R. M.

Cockrem (statistics),

Dr. R. E.

Munford ( ), and Mr.

C.

Muir (technical).

.411 photo l½assey Univers

ere processed the Central Pho Unit,

In

addition to acknowle was assisted by:-

o n Vo Hawthorne for the Ivlr. E. Orms or

Dr. G. Butler, Plan

radio iso e

This work was aided in part

64/215.

ADDENDUM.

made, this thesis project

and care of animals,

and ec

Division,

D • •

I.R., for

of rats, ion of

a University Research Committee Grant,