McSweeney C S
CSIRO, Division of Tropical Animal Production, Davies Laboratory, Townsville, Queensland.
Aust Vet J. 1988 Jul;65(7):205-7. doi: 10.1111/j.1751-0813.1988.tb14458.x.
The structure of the omasum was compared in 10 water buffalo (Bubalus bubalis), 10 Shorthorn cattle (Bos indicus), 9 Merino sheep (Ovis aries) and 10 cross-bred goats (Capra hircus), and the functional significance of the differences is discussed. The weight of the omasum and area of the internal laminae appeared to be smaller in Brahman cattle than the buffalo and British cattle. When compared in relation to body weight, the omasums of caprid animals were smaller than those of bovids, by a factor of 0.33-0.67 but the omasums of goats were appreciably larger than sheep. The number of laminae ranged from 33 to 35 for the sheep and goats compared with 122 to 169 for the buffalo and cattle. It is suggested that the marked difference in structure of the omasum between the small and large ruminants may influence the food intake of these animals through the effects of this gut compartment on absorption of nutrients and passage of digesta.
对10头水牛（印度水牛）、10头短角牛（印度瘤牛）、9头美利奴羊（绵羊）和10头杂交山羊（山羊）的重瓣胃结构进行了比较，并讨论了差异的功能意义。婆罗门牛的重瓣胃重量和内部褶膜面积似乎比水牛和英国牛小。与体重相关比较时，山羊科动物的重瓣胃比牛科动物的小，系数为0.33至0.67，但山羊的重瓣胃明显大于绵羊。绵羊和山羊的褶膜数量为33至35片，而水牛和牛的褶膜数量为122至169片。有人认为，小型反刍动物和大型反刍动物重瓣胃结构的显著差异可能通过这个胃腔对营养物质吸收和食糜通过的影响来影响这些动物的采食量。
