The goal of this study was to examine the development of the reticulum, rumen, omasum and abomasum in six calves from birth to 100 days of age by means of six serial ultrasonographic examinations. The examinations were carried out in standing animals using a 5 MHz-transducer as described previously. The calves were primarily fed milk until examination 4 and then they were weaned. The reticulum ...

the objective of this study was to test whether the stimuli of osmotic pressure (op), vfa or ph in the omasum would affect the passage of digesta from the rumen and feed intake in sheep. five experements were carried out. different solutions with specific, op, vfa concentration and ph were infused into the omasal body. rumen digesta volumes and outflow rates (liquid and solid) were measured by ...

The development of the four stomachs yak is closely related to its health and performance, however underlying molecular mechanisms are largely unknown. Here, we systematically analyzed mRNAs in five growth time points [0 day, 20 days, 60 15 months 3 years (adult)] yaks. Overall, expression patterns DEmRNAs were unique at 0 d, similar d m adult stomachs. pattern abomasum was markedly different f...

Ultrasonography is an ideal diagnostic tool for investigating gastrointestinal disorders in cattle. In animals with traumatic reticuloperitonitis, inflammatory fibrinous changes and abscesses can be imaged. Ultrasonography can be used to assess the size, position, and contents of the abomasum. This article describes the ultrasonographic techniques used for examination of the reticulum, rumen, o...