Experimental induction of left abomasal displacement: a new educational technique

experimental induction of left abomasal displacement: a new educational technique

the purpose of this study was to induce abomasal displacement to the left, and to let the undergraduate and post graduate students get used to the ping sounds of abomasum and other clinical manifestations. the procedure was carried out on eight young bulls, they were sedated and a 2 m flexible tube was inserted through the nasal canal into the rumen. by laparo-rumenotomy, 20 cm of the tube was ...

A Treatise on Left Abomasal Displacement in Dairy Cattle

Left abomasal displacement between the uterus and rumen during bovine twin pregnancy

Here, we describe two cases of left displaced abomasum (LDA) in Holstein cattle at 6 and 9 months of twin gestation. Clinical examination revealed signs of proximal ileus with marked abdominal distension, but no ping sounds. An unusually high position of the gravid uterine horn on the left side was bserved with ultrasound. Left exploratory laparotomy confirmed that the abomasum was displaced to...

Abomasal Displacement in Cows - Measurement of Oxygen Saturation of the Abomasal Wall

The monitoring of intestinal oxygen saturation by means of a pulse oximeter is routinely applied in human medicine during surgery of the gastrointestinal tract to evaluate the disturbance of perfusion and assess tissue viability. To some extent, this technique has been applied in veterinary medicine. The purpose of this study was to test the technique in cattle and to describe the influence of ...

Displacement of the abomasum to the left side and pyloric obstruction in a goat

A 4-year-old female native goat with the history of inappetence and no defecation was referred to the Department of Clinical Sciences, School of Veterinary Medicine of Shiraz, Shiraz, southern Iran. During exploratory laparotomy, pyloric obstruction and displacement of the abomasum to the left side was observed. Obstruction of pylorus was due to a ball-shaped phytobezoar. The goat was followed ...

A New Restructured Shaded Pole Induction Motor- 3D Finite Element Analysis and Experimental Verification

Shaded pole induction motors, despite the simplicity and low cost, are difficult to analyze particularly in the equivalent circuit methods, due to the asymmetric structure, saturation, harmonics, inaccurate estimation of leakage inductances and skew. Hence, 3D numerical methods could be very useful in the design and optimization stage. This paper presents the 3D transient finite element analysi...