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首页> 外文期刊>Indian Journal of Small Ruminants >Determination of age of prenatals and histomorphological changes of cervix of sheep during different stages of pregnancy.
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Determination of age of prenatals and histomorphological changes of cervix of sheep during different stages of pregnancy.

机译：绵羊不同孕期的产前年龄和子宫颈组织形态学变化的测定。

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摘要

Female genitalia (86) of healthy adult ewes (both pregnant and non-pregnant, 1-4 years of age) were collected from the local slaughter houses in and around Srinagar city. The gravid uteri of sheep ranging from 14 to 140 days of gestation were divided into five groups viz., G-1 (14-57 days), G-2 (58-74 days), G-3 (75-93 days), G-4 (94-120 days) and G-5 (121-140 days). A new graph was constructed incorporating embryonic lengths for determining practical age of embryos and foetuses from 12 days up to termination of pregnancy. Epithelial lining of the cervix of non-pregnant and early pregnant sheep was simple low columnar with goblet cells which was non-ciliated containing shorter mucosal folds and the lamina propria-submucosa possessed numerous smaller glands. As the gestation period advanced, increased height and loosening of the lamina epithelial mucosa occurred with longer mucosal folds. The glands became larger gradually and their proliferation also occurred with increasing gestational age. Vascular proliferation occurred from lamina propria up to the tunica serosa with increase in gestation periods.
机译：从斯利那加市及周边地区的屠宰场收集健康成年母羊（雌性和未妊娠，1-4岁）的女性生殖器（86）。妊娠14至140天的绵羊妊娠子宫分为五组，即G-1（14-57天），G-2（58-74天），G-3（75-93天） ，G-4（94-120天）和G-5（121-140天）。构建了一个包含胚胎长度的新图形，用于确定从12天到终止妊娠的胚胎和胎儿的实际年龄。非妊娠和早孕绵羊的子宫颈上皮内衬为简单的低柱状，杯状细胞，无纤毛，粘膜褶皱较短，固有层-粘膜下层有许多较小的腺体。随着妊娠期的延长，层状上皮粘膜的高度增加和松弛发生，粘膜折叠时间更长。腺体逐渐变大，其增殖也随着胎龄的增加而发生。随着妊娠期的增加，从固有层到浆膜有血管增生。

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