Related Experiment Video
Updated: Feb 11, 2026

The Use of Traditional Fear Tests to Evaluate Different Emotional Circuits in Cattle
Published on: April 22, 2020
Corticosteroids in liver and urine in Sicilian cattle by a LC-MS/MS method
Vita Giaccone1, Andrea Macaluso1, Gaetano Cammilleri1
1a Area Chimica e Tecnologie Alimentari , Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri" , Palermo , Italy.
Abstract:
The presence of corticosteroid residues was assessed in urine and liver samples from livestock of Sicily. A total of 630 bovine samples were collected from farms and slaughterhouses. The samples were analysed using solid-phase extraction (SPE) coupled with ultra-performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS). All the corticosteroids found were under the maximum residue limit imposed by Commission Regulation (EC) 37/2010. About 4% of liver samples showed dexamethasone levels above the limit of detection (LOD), with a mean of 1.5 ± 0.2 µg kg-1. Betamethasone was found only in seven liver samples, with a mean of 1.6 ± 0.1 µg kg-1. Furthermore, prednisolone and prednisone were found only in urine and liver samples from slaughterhouse, probably related to the high rate of stress for bovines. These results suggest good control practices adopted by Sicilian farms, able to ensure the quality of food products.
More Related Videos
08:29Measuring Liver Mitochondrial Oxygen Consumption and Proton Leak Kinetics to Estimate Mitochondrial Respiration in Holstein Dairy Cattle
Published on: November 30, 2018
05:18Author Spotlight: Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome
Published on: May 26, 2023
Related Concept Videos
Filtration and Urine Formation
Urine Studies II: Urine Culture and Sensitivity Test
COPD: Management Using Bronchodilators and Corticosteroids
Antiasthma Drugs: Inhaled Corticosteroids and Glucocorticoids
ICS work through a multifaceted mechanism of action. They suppress the inflammatory response caused by the proliferation of TH cells. They also reduce the transcription of the IL-2 gene, which is involved in the...
Urine Studies I: Urinalysis
Physiology of Urine Formation
Glomerular Filtration
The first stage in urine formation is glomerular filtration. Each kidney contains approximately 1 million nephrons, the functional units of filtration, with a...