At the Initiative of Temirkhan Amantayevich Yelshibayev, General Director of the Republican Veterinary Laboratory, Professional Development Courses on “Determination of Residues of Sulfonamides, Nitroimidazoles, Penicillins, Amphenicols, Quinolones, and Polypeptide Antibiotics” Were Conducted in March 2026 at the Astana and Almaty Regional Branches