Date of Award

1975

Document Type

Thesis

Degree Name

Master of Science

Department

Biology

Abstract

The effects of either porcine FSHt equine LH, or both combined upon the pregametic a.nd gametic phases of the ovarian cycle of Anolis carolinensis {green anole)were investigated in animals maintained under one of three photothermal. regimens: 3 hours light at 15 C; 14 hours light at 15 C; or 14 hours light at 32 C.

Increases in pre-vitellogenic follicle diaaeter and ovarian weight were significantly greater at 32 C than at 15 c. A trend towards decreased numbers of atretic follicles with increased gonadotrophin dosage occurred in response to 14 hours light at 32 C. Gonadotrophin dosages which stimulated vitello­ genesis at 32 C did not induce yolking at 15 C.

Significant increases in ovary weight and a trend towards an increase in atretic follicles over group controls occurred at cool temperatures irrespective of photoperiod (3 or 14 hours). Increases in body weight were observed in both 15 C groups and were significant over both the 32 C group and the initial controls.

Significant increases in pre-vitellogenic follicle produc­ tion occurred in both 15 C and 32 C groups irrespective of photo­ period (3 or 14 hours).

Effects of gonadotrophin treatments are correlated with and discussed in terms of the environmental para.aeters within which they occurred.

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