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Results for “CATTLE DISEASES”

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PubMed1994

Ureaplasma diversum as a cause of reproductive disease in cattle.

This article includes a brief review of the classification, habitat, and characteristics of the ureaplasmas, followed by a discussion of the pathogenesis, transmission, clinical syndromes, diagnosis, immunity, and treatment of Ureaplasma diversum infections in cattle.

Abortion, Veterinary↗
PubMed1988

Nutrient requirements of diseased, stressed cattle.

Cattle encounter numerous stressors during movement to feedlot or pastures for growing and finishing. Of utmost importance are diets that will be consumed and furnish the essential nutrients. Different diets and management systems may be required for different groups of cattle, and in this article, some nutrient requirements for these different groups are discussed.

Animal Nutritional Physiological Phenomena↗
PubMed1989

ELISA serodiagnosis of Johne's disease in cattle.

An ELISA test for the serodiagnosis of M. paratuberculosis in cattle has been developed. The test is based on antigen 60 from BCG. It is specific for myocobacteria and detects M. bovis and M. paratuberculosis antibodies. The correlation between sero-units and complement fixation is not an absolute one. On the basis of these preliminary results, a cut-off established at an optical density (OD) of 0.42-0.45 when the sera are analysed at a 1:100 dilution, corresponding to 200 serounits, seems to be adequate. The greatest usefulness of the test appears to consist in the exclusion of a presumed mycobacterial infection.

Animals↗
PubMed2003

Ultrasonography in gastrointestinal disease in cattle.

Ultrasonography is an ideal diagnostic tool for investigating gastrointestinal disorders in cattle. It is performed on standing non-sedated cattle using a 3.5 MHz linear transducer. In animals with traumatic reticuloperitonitis, inflammatory fibrinous changes, and abscesses can be imaged; however, magnets and foreign bodies are difficult to visualize because of the gas content of the reticulum. Ultrasonography can be used to assess the size, position and contents of the abomasum. Percutaneous ultrasound-guided abomasocentesis can be performed to evaluate the nature and chemical composition of its contents. In left displacement of the abomasum, the abomasum is seen between the left abdominal wall and the rumen. It contains fluid ingesta ventrally and a gas cap of varying size dorsally. Occasionally, the abomasal folds are seen in the ingesta. In cattle with right displacement of the abomasum, the liver is displaced medially from the right abdominal wall by the abomasum, which has an ultrasonographic appearance similar to that described for left displacement. Motility and diameter of the intestine are the most important criteria for ultrasonographic assessment of ileus. However, the cause of the ileus is rarely determined using ultrasonography. In cases with ileus of the small intestine, there is at least one region of dilatation of the intestine and motility is reduced or absent. In cattle with caecal dilatation, the caecum can always be imaged from the right lateral abdominal wall. The wall of the caecum closest to the transducer appears as a thick, echogenic, semi-circular line.

Animals↗