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 ...

The transition period occurring 2 wk prepartum through 2 to 4 wk postpartum is the major risk period in the etiology of left displaced abomasum. The prepartum depression of intake and the slow postpartum increase in intake are risk factors causing lower ruminal fill, reduced forage to concentrate ratio, and increased incidence of other postpartum disorders. Uncomplicated ketosis, retained place...

BACKGROUND Little is known about the occurrence rate, underlying etiology or treatment of left displacement of the abomasum in beef calves. OBJECTIVE Describe the clinical presentation, diagnosis and treatment of left displacement of the abomasum in 4 beef calves. ANIMALS Four client-owned beef breed calves with left displaced abomasum (LDA). METHODS Retrospective case series. Hospital me...

This study was designed to investigate causes of culling in industrial dairy herds in Fars province and to describe the pattern of reason-specific culling with respect to age of animal and interval from calving to culling. A total number of 9 dairy herds were selected for the study and information about culling reasons, birth date, last calving date and culling date was collected for culled cow...

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...

Left displacement of the abomasum (LDA) has been described for the first time by Begg in 1950 (Begg, 1950). The incidence of LDA on lactation level varies between 0.5% and 2.2%; in particular circumstances, it may even reach 5%. LDA mainly affects dairy cows during the first month post partum. Thereby, the abomasum becomes dilated with fluid and gas and is mechanically displaced from its normal...

Corresponding Author: Ken Onda Azabu University, School of Veterinary Medicine, 17-71 Fuchinobe 1-Chome, Chuo-ku, Sagamihara 229-8501, Japan Tel: +81-42-754-7111 (ext. 658)18 Fax: +81-42-850-2464 Email: [email protected] Abstract: Ornithine Carbamoyltransferase (OCT) is a hepatocyte-specific enzyme; elevated serum activity indicates liver damage. Displaced abomasum frequently occurs around the...

this study was designed to investigate causes of culling in industrial dairy herds in fars province and to describe the pattern of reason-specific culling with respect to age of animal and interval from calving to culling. a total number of 9 dairy herds were selected for the study and information about culling reasons, birth date, last calving date and culling date was collected for culled cow...