Time-Dependent Changes in Gonadotropin Synthesis Following Gonadectomy in the Frog, Rana Pipiens1
نویسندگان
چکیده
منابع مشابه
New records of trematode parasites (digenea) in the banded frog (Rana camerani) and marsh frog (Rana ridibunda ridibunda) (Anura: Ranidae), from southwest of Iran
Fourteen adult frogs including six banded frog, Rana camerani and eight marsh frog, Rana ridibunda ridibunda were collected from two sites of Chahar Mahal-o-Bakhtiari province at the southwest of Iran and then were examined for helminth parasites. Only Dolichosaccus rastellus (50%) was found in R. camerani, Skrjabinoeces similis (50%) and metacercarian cysts of Codonocephalus urniger (12.5%) w...
متن کاملNew records of trematode parasites (digenea) in the banded frog (Rana camerani) and marsh frog (Rana ridibunda ridibunda) (Anura: Ranidae), from southwest of Iran
Fourteen adult frogs including six banded frog, Rana camerani and eight marsh frog, Rana ridibunda ridibunda were collected from two sites of Chahar Mahal-o-Bakhtiari province at the southwest of Iran and then were examined for helminth parasites. Only Dolichosaccus rastellus (50%) was found in R. camerani, Skrjabinoeces similis (50%) and metacercarian cysts of Codonocephalus urniger (12....
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The purpose of this study was to examine the acute and sub-acute effects of diazinon onhistopathological parameters of liver tissue and blood level of hepatic enzymes of male commonfrog (Rana ridibunda). Frogs were assigned to 9 groups (n=8, meaning 8 frogs in each group):control and treatment groups with 30, 60, 90 and 120 μg/L diazinon in water for one day or oneweek. Hepatic enzymes containi...
متن کاملVestibulotrigeminal pathways in the frog, Rana esculenta.
The aim of this study was to investigate whether primary vestibular afferent fibers establish direct connections with the motor and sensory trigeminal system in the brainstem of the frog. The experiments were carried out on Rana esculenta. In anaesthetized animals the trigeminal and vestibular nerves were prepared, and their proximal stumps were labeled either with fluorescein binding dextran a...
متن کاملSeasonal changes in energy reserves in the common frog, Rana tigrina.
Liver glycogen and lipid, ovarian glycogen, and lipid index were used as criteria to elucidate energy changes associated with reproduction and biphasic pattern of dormancy (summer and winter) in the female forg, Rana tigrina. Liver glycogen showed 2 peaks; the ovarian glycogen showed reciprocal relationship with that of liver. The liver lipid and glycogen showed parallel trend.
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ژورنال
عنوان ژورنال: Biology of Reproduction
سال: 1991
ISSN: 0006-3363,1529-7268
DOI: 10.1095/biolreprod44.5.798