Eficacitatea imonologică a vaccinurilor H-120 administrată prin metoda SPRAY şi MA5+CLON30 în combinaţie cu soluţia hidroalcoolică de propolis

Abstract

This article includes the results of experiments in a flock of chickens. Experiments have been conducted in order to assess the comparative immunological efficacy of different strains of vaccines used in immunization against infectious avian bronchitis. Actually it is a tendency to develop large production of substances and biologically active products, which are used for immunity, increase body weight, the percentage of viability and physiological resistance of 1he body. As a biologically active product, immunocorrectors is the 10% hydro-alcoholic solution of propolis. Propolis consists of 55% resinous compounds and balsam,1·, 30% beeswax, 10% aromatic oils, 5% bee pollen. Chemically, propolis is exceedingly complex and contains a rich variety of potent terpenes and benzoic, caffeic, cinnamic, and phenolic acids. Propolis is very high flavanoid content, which has been proven to account for many of the health giving benefits attributed to propolis. The propolis is considered a true gift of nature because the propolis includes the most useful organic elements. Propolis samples from different geographic origins were investigated for their antibacterial, antifungal and antiviral activities. In this study data are presented confirming reduced post-vaccination immunological efficacy in chickens vaccinated with strains H-120 at three day old and immune stimulatory effect and when the vaccine is administered in combination with the 10% hydro- alcoholic solution of propolis recommended by the instruction. In both cases the vaccine was administrated with spray method. The better immunological effect was obtained on the group of chickens which were vaccinated with strains Ma5+Clon30 in combination with the 10% hydro- alcoholic solution of propolis.