Studies on the control of the corpus luteum in the vole, Microtus agrestis
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چکیده
منابع مشابه
Hypothalamo-hypophysial control of ovulation in the vole (Microtus agrestis).
Electrical stimulation of the anterior hypothalamus of the vole, Microtus agrestis, usually results in ovulation, whereas stimulation of areas in the posterior hypothalamus do not. Ovulation can also be elicited by injections of sheep median-eminence extracts, and by preparations ofsheep luteinizing hormone. Observations on the number of corpora lutea formed, and ripe Graafian follicles remaini...
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Under natural conditions the vole (Microtus agrestis) breeds in the spring and summer but not in the autumn and winter. This seasonal change was attributed by Baker & Ranson (1933) to the influence of hours of sunshine, and in the laboratory it has been shown that photoperiod affects the growth ofgonads and maintenance of their activity (Baker & Ranson, 1932; Clarke & Kennedy, 1967; Breed & Cla...
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on the hindquarters at the age of about 3 months. In the following 1 to 2 months, hair is lost from these regions revealing raised patches of bright pink skin. Each patch is about 20 mm long and 15 mm wide, has a coarse texture, one or two characteristic folds (Pl. 1, Fig. 1) and a musty odour. Histologically, the skin contains very greatly enlarged holocrine sebaceous glands (Pl. 1, Fig. 2). T...
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cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
the washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests
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ژورنال
عنوان ژورنال: Reproduction
سال: 1978
ISSN: 1470-1626,1741-7899
DOI: 10.1530/jrf.0.0520283