Predictors of blood ionized calcium concentration in sick adult cattle.

Background: Data on the factors affecting blood ionized calcium concentration (ciCa ) and diagnostic performance of serum total calcium concentration (ctCa) measurements to detect abnormal blood iCa status are lacking in sick adult cattle.

Objective: Assess the association of ciCa with venous blood pH, plasma concentrations of chloride (cCl), sodium (cNa), and potassium (cK), and ctCa, and total protein, albumin, and globulin concentrations in sick adult cattle.

Animals: Two-hundred and sixty-five adult cattle (≥1-year-old) with different diseases.

Evaluation of the Freestyle Optium Neo H point-of-care device for measuring blood glucose concentrations in sick calves.

Background: Data on the performance of a glucometer in calves with different diseases are currently lacking.

Objective: The primary objective of this study was to evaluate the reliability of a point of care glucometer in calves affected by different diseases relative to a traditional bench-top autoanalyzer.

Animals: One hundred ninety-six calves with different disorders in a referral hospital.

Evaluation of the i-STAT analyzer for determination of ionized calcium concentrations in bovine blood.

Background: Information regarding the performance of the i-STAT, a point-of-care analyzer, to determine ionized calcium (iCa ) concentration in bovine blood is limited.

Objective: The primary goal of this study was to evaluate the agreement of the i-STAT against a traditional bench-top blood gas analyzer (Radiometer ABL800 FLEX) in the measurement of iCa in the blood of cattle with various disorders.

Methods: In this study, 121 cattle with various diseases were used.

Systemic nocardiosis in a dog caused by Nocardia cyriacigeorgica.

Background: Systemic nocardiosis due to Nocardia cyriacigeorgica has not been reported in dogs.

Case Presentation: Light and electron microscopy, microbiological culture and molecular identification (PCR) were used to diagnose systemic nocardiosis caused by Nocardia cyriacigeorgica in a 3-month-old husky dog. The postmortem changes included multifocal to coalescing, sharply circumscribed pyogranulomatous inflammation and abscess formation in lungs, liver, myocardium, spleen, kidneys, brain, and hilar lymph nodes.

The diagnostic value of two commercially available human cTnI assays in goat kids with myocarditis.

Background: Cardiac troponin I (cTnI) is a peripheral blood marker for myocardial damage. Because of the unavailability of goat-specific cTnI assays human cTnI assays may be validated for detection of myocarditis in goat kids.

Objectives: The purpose of the study was to evaluate 2 commercially available human cTnI assays in goat kids with myocardial damage, and to determine the cTnI expression in cardiac muscle.

Reliability of the Lactate Scout point-of-care instrument for the determination of blood L-lactate concentration in sheep.

Background: Data on accuracy and precision of the Lactate Scout point-of-care (POC) analyzer in ovine medicine are lacking.

Objective: The purpose of the study was to assess the reliability of the Lactate Scout in sheep.

Materials And Methods: Fifty-seven sheep at varying ages with various diseases were included.

Increased plasma cardiac troponin I concentration in lambs with myocarditis.

Background: Cardiac troponin I (cTnI) is a blood biomarker of myocardial injury. A human cTnI assay may be useful for measuring cTnI concentrations in lambs with naturally occurring myocarditis.

Objective: The aims of this study were to evaluate the utility of a commercially available human chemiluminescent microparticle cTnI immunoassay for measuring plasma cTnI concentrations in lambs with naturally occurring myocarditis from infection with foot and mouth disease virus (FMDV), and to determine cTnI expression in cardiac muscle of affected lambs.

Vitamin D status in cattle with malignant catarrhal fever.

The aim of the present study was to determine the vitamin D status in cattle with malignant catarrhal fever (MCF). Twelve cattle diagnosed as MCF and 6 healthy cattle (controls) were used in the study. Serum 1,25-dihydroxyvitamin D(3) (1,25-D), 25-hydroxyvitamin D(3) (25-D), calcium, phosphorus and parathyroid hormone (PTH) levels were determined as 96.

Thiamine status of feedlot cattle fed a high-concentrate diet.

As thiamine status of ruminants is adversely affected by rumen acidity, this study investigated whether or not thiamine deficiency occurs in feedlot cattle fed a high concentrate diet. Fifty 1- to 2-year-old feedlot cattle fed a high concentrate diet (75% barley) for at least 3 mo (high concentrate diet group) and 15 healthy feedlot cattle of similar ages (control group) that were fed a low concentrate diet (30% barley) were used. Rumen fluid samples were obtained by rumenocentesis and their pH was determined with a portable pH meter.

High cardiac troponin I plasma concentration in a calf with myocarditis.

A 15-day-old Brown Swiss calf, whose dam had suffered from foot-and-mouth disease, was presented with a history of depression and failure to suckle. The calf had an irregular cardiac rhythm and increased plasma cardiac troponin I (cTnI) detected with a commercial human immunoassay. The calf died the following day and myocarditis was detected.

Hemorrhagic syndrome-like disease in calves with bovine viral diarrhea and mucosal disease complex.

Background: Bovine viral diarrhea virus (BVDV) infection is one of the causes of hemorrhagic diathesis in cattle but there have been limited field studies about that condition.

Hypothesis: To identify the cause of hemorrhagic diathesis in calves and describe its clinical findings.

Animals: Five calves from a farm with 150 dairy cows.