Author

George Kefalas

Greece

2 articles in our journals

Articles where this person is an author, newest first. People are matched by their name as printed (no ORCID iD is recorded for them), not by name alone; search the name as text to find namesakes too.

Research ArticleOpen accessEfficacy of Tylosin Tartrate on Mycoplasma Infections and Eggshell Apex Abnormalities in Layer Hens Under Field ConditionsKonstantinos C. Koutoulis, George Kefalas, Niki Mouttotou et al.The aim of this report was to describe a clinical case of concurrent infection with Mycoplasma Gallisepticum (MG) and Mycoplasma Synoviae (MS) in layers, complicated with Escherichia coli and Pasteurella multocida, as well as to evaluate the efficacy of tylosin tartrate treatment (Pharmasin® 100% WSG, Huvepharma) on Mycoplasma under field conditions. A flock of 18,500 ISA Brown pullets, 21 weeks … …American Journal of Animal and Veterinary Sciences, Vol. 8, Issue 4 · 20 Dec 2013 · 8,735 accessesView PDF Cite

Research ArticleOpen accessSalinomycin Toxicosis in Broiler Breeders and Turkeys: Report of the First CaseKonstantinos C. Koutoulis, George Kefalas, Evangelos MinosThe objective of this study was to describe two clinical cases of toxicosis by accidental administration of salinomycin in feed in broiler breeders and turkeys. In the first clinical case, a 32000 broiler breeders flock, 30 weeks of age, suffered a severe mortality during the first week, a sharp decrease in egg production and a dramatic reduction in food consumption … …American Journal of Animal and Veterinary Sciences, Vol. 8, Issue 4 · 26 Sep 2013 · 8,082 accessesView PDF Cite