The diseases of the genital The diseases of the genital organs of domestic animals diseasesofgenita01will Year: 1921 Estrtun 47 When the egg has fully ripened and the ovisac has com- pleted its growth and is fully distended with fluid, estrum, or 'heat', occurs. 2. Estrum Preliminary to reproduction, an irresistible sexual desire occurs, leading to coition. Estrum finds expression in various ways in different species of animals. In general there is a nervous excitabil- ity, the external genitals are swollen and vascular, and there is an increased secretion of mucus from the vulva and the Ger
The diseases of the genital The diseases of the genital organs of domestic animals diseasesofgenita01will Year: 1921 Estrtun 47 When the egg has fully ripened and the ovisac has com- pleted its growth and is fully distended with fluid, estrum, or 'heat', occurs. 2. Estrum Preliminary to reproduction, an irresistible sexual desire occurs, leading to coition. Estrum finds expression in various ways in different species of animals. In general there is a nervous excitabil- ity, the external genitals are swollen and vascular, and there is an increased secretion of mucus from the vulva and the Germinal Lpitkelium / TimaVY ToUicle â â¢'*>, ' ⢠â ' ' â¢'â ,,. '''' ..'â â ..⢠V â - » ;? -fi-l!| Zona. I'iG. 22âSection of ovary of cow showing a follicle, mm., with ovum. vagina. In the mare, when other horsesâespecially stal- lionsâare present, there are frequent emissions of urine in small quantities, and the vulvar lips are frequently opened and the erected clitoris protruded. In the cow and the sow, the female imitates the copulatory act of the male by mount-
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