Publications by authors named "H Karatzias"
Article Synopsis
- Anaplasma phagocytophilum is a tick-borne intracellular pathogen that primarily affects veterinary animals, causing symptoms like high fever and abortions.
- In Greece, it has been detected in dogs, ticks, and humans but only A. ovis in farm animals, highlighting its zoonotic potential.
- Recent cases in Northern Greece showed multiple abortions in goats linked to A. phagocytophilum, which was confirmed through testing, and treatment with oxytetracycline LA effectively halted further abortions.
The objective of this study was to evaluate under field conditions, whether daily administration of oregano essential oil is effective in preventing and/or diminishing the severity of neonatal diarrhea syndrome in calves aged less than 15days. Ninety-one newborn calves from three dairy farms were assigned into two groups; "Eco" group (n=46) calves were drenched with Greek oregano (Origanum vulgare ssp. Hirtum) essential oil (ECODIAR® liquid 5%) at the dose of 12.
View Article and Find Full Text PDFBackground: Determination of serum total protein concentration is commonly performed by the biuret method. Refractometric measurement is a faster and less expensive alternative but its accuracy has not been determined in ruminants.
Objective: The purpose of the study was to compare the serum total protein concentrations in cattle, sheep, and goats measured by the biuret method with those obtained by refractometry.
The present study was performed to investigate the clinical impact and certain virological and haematological parameters following immunization of cattle against lumpy skin disease (LSD). The study was conducted in a dairy cattle farm (215 animals), immunized with a Neethling strain-based live vaccine. Twenty-seven animals (14 lactating cows, four dry cows and nine calves) were randomly selected for repetitive blood and saliva samplings.
View Article and Find Full Text PDFArticle Synopsis
- Clinoptilolite, a natural zeolite, effectively reduced aflatoxin M1 (AFM1) levels in bulk-tank milk from dairy cows, which is significant for milk safety.
- In a study involving 15 Greek dairy farms, the use of clinoptilolite showed an average reduction of 56.2% in milk AFM1 concentrations within just seven days of treatment.
- Results indicated that smaller particle sizes of clinoptilolite were more effective, highlighting the importance of particle size in enhancing its adsorption capabilities.