Results 141 to 150 of about 6,652 (181)

Effects of hypophysectomy on structure and function of testis in adult toads, Bufo bufo bufo (L.)

General and Comparative Endocrinology, 1978
Abstract The pars distalis of the pituitary gland of sexually mature toads was extirpated, and the effects of this on spermatogenesis and the histological appearance of the interstitial tissue of the testis were studied. The rates of cell multiplication in the early phases of spermatogenesis were estimated from the frequency at which spermatocysts ...
K K, Guha, C B, Jørgensen
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Morphogenesis of the frontal organ in Bufo bufo during development

The Anatomical Record, 1990
AbstractMorphogenesis of the frontal organ in Bufo bufo was examined under transmission electron microscope. Many remarkable similarities to the frontal organ of other Amphibia Anura are observed. It originates from a diverticulum in the dorsal region of the neural tube.
Farnesi R. M., TEI, Simonetta, Vagnetti D., DI ROSA, Ines, FAGOTTI, Anna, Santarella B.   +5 more
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The renin-angiotensin system in Bufo arenarum and Bufo paracnemis

Comparative Biochemistry and Physiology Part A: Physiology, 1971
Abstract 1. 1. Toads have in their kidneys a renin-like enzyme and in their plasma an angiotensinogen-like substance. The incubation of toad plasma with kidney extracts gives rise to a pressor substance having properties similar to angiotensin. 2. 2. The renin content of the toad kidney expressed/g of kidney is higher in smaller animals. 3.
H, Nolly, J C, Fasciolo
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NEUROHYPOPHYSIS AND WATER METABOLISM IN THE TOAD, BUFO BUFO (L.)

Endocrinology, 1956
SEVERAL attempts have been made to evaluate the role of the neurohypophysis in the water metabolism of amphibians by extirpation of the hypophysis (1, 2, 3, 4, 5, 6, 7). However, since it is technically difficult to extirpate the neurohypophysis only the adenohypophysis was removed together with the neurohypophysis. Such experiments give no information
C B, JORGENSEN, P, ROSENKILDE, K G, WINGSTRAND   +2 more
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[Skeletochronological study in Bufo bufo in Brittany].

Comptes rendus de l'Academie des sciences. Serie III, Sciences de la vie, 1996
This study on common toad (Bufo bufo), demonstrates the identity of structure between femur and phalange of a same individual. That allowed us to use skeletochronology without killing animals, and to study the same population. The periodicity of the lines of arrested growth (LAG) is annual.
T, Frétey, B, Le Garff
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?????????????????????????????? ?????????????????????????????? ?????????? ?????? (Bufo bufo complex) ?? ?????????????????? ?????????????????????????? ?? ???????????????????????? ???????????????? ??????????????????????. ?????????????????? 2

2014
The data of external morphological character variability of the common toad from the West Caucasus and some regions of Ukraine and Russia as well as the data of hybridization analysis are discussed. The obtained results incline to a conclusion that the differences between the West Caucasian toads and the other populations were exaggerated and the ...
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Bufo bufo bufo by Eugène Savitzkaya

Par son ethos d’oisif précoce, spontané, libre et obsessionnel, Eugène Savitzkaya dans son œuvre renverse la prétendue supériorité des humains sur les animaux. L’ouvrage Bufo bufo bufo (Minuit, 1986) en est la preuve : dans ce livre, toutes les formes de vie s’entremêlent, se tuent, se mangent et font l’amour sans cesse. Face à un texte aussi énergique
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?????????????????????????????? ?????????????????????????????? ?????????? ?????? (Bufo bufo complex) ?? ?????????????????? ?????????????????????????? ?? ???????????????????????? ???????????????? ??????????????????????. ?????????????????? 1

2014
The investigation, based on the biological and morphological species concepts, as well as the data of hybridization analysis and variability of external morphological characters, show that the common toad from the West Caucasus and some regions of Ukraine and Russia differ from others in certain external morphological features.
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Bufo bufo

British Homeopathic Journal, 1960
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Hibernation sites of the toads Bufo bufo and Bufo calamita in a river floodplain

1996
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Bosman, W., Gelder, J.J. van, Strijbosch, H.   +2 more
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