Franco A, Regodón S, Robina A, Redondo E
Department of Anatomy and Embryology, Facultad de Veterinaria, Universidad de Extremadura, Cáceres, Spain.
Am J Vet Res. 1992 Jul;53(7):1209-17.
Histomorphometric and scanning electron microscopic analyses were carried out on 74 embryos and fetuses and 20 sheep (early postnatal to adult age). Histodifferentiation of the rumen took place at 33 days of fetal life. Ruminal pillars were observed at 42 days, and at 61 days, ruminal papillae appeared as evaginations of the epithelial stratum basale. Neutral mucopolysaccharides first appeared in epithelial cells at 46 days of fetal life; thereafter, numbers decreased gradually and subsequently stabilized in postnatal life. Acid mucopolysaccharides, mucins, and mucoid compounds were not detected. Age and diet were recognized as factors that determine the structure of the ruminal mucosa. Growth curves and formulas were set out for each tissue layer.
对74个胚胎、胎儿以及20只绵羊（出生早期至成年）进行了组织形态计量学和扫描电子显微镜分析。瘤胃的组织分化在胎儿期第33天发生。在42天时观察到瘤胃柱，61天时，瘤胃乳头表现为基底上皮层的内陷。中性黏多糖在胎儿期第46天首次出现在上皮细胞中；此后，数量逐渐减少，随后在出生后稳定下来。未检测到酸性黏多糖、黏蛋白和类黏液化合物。年龄和饮食被认为是决定瘤胃黏膜结构的因素。为每个组织层绘制了生长曲线和公式。
