©Особливості специфічної профілактики хвороби гамборо серед курей-бройлерів кросу КОББ-500 за відсутності гельмінтної інвазії

Анотація

FEATURES GUMBORO DISEASE SPECIFIC PREVENTION AMONG CROSS BROILERS COBB-500 IN THE ABSENCE OF HELMINTH INFESTATIONS

T. V. Mazur , N. G. Sorokina, E. K. Galchinska, I. M. Garkava

Abstract. The development of industrial  meat poultry raising  to a certain extent depends on the epizootic situation (concerning IBB), which causes mortality of  live-stock  up  to  50%.  One  of the  ways  to achieve  epizootic  well-being  -  is  to break apart epizootic chain in link "pathogen-susceptible organism" which helps to  avoid  disorder  in  poultries  which  are  kept  in  farms.  Recently,  doctors  of veterinary  medicine  who  provide  poultry  raising  well-being,  control  the  level  of protective anti-bodies in order to avoid Hamboro disease in a body of vaccinated poultries. One should take into account the parent’s acquired immune background  (so-called maternal antibodies - MAT) in order to reveal protective anti - bodies in poultry’s organism. Monitoring  the  level  of  maternal  antibodies  is  one  of  the  most  important task,  because poultry premature vaccination  considering MAT presence in their body  may  cause  the  neutralization  of  the  latter  vaccine  antigen  and  helps  in  forming  of expected results. Registration of MAT level was conducted by means of various  tests,  including  application  of  IFA  method  (immune-ferment  analyzes (ELISA), and their coordination with application of alive virus vaccine TAbic MB calculated by Deventer methods based on application of variety coefficient CV%  which had been included into Biochek program.  The  starting  point  for  research  work  was  to  reveal  the  level  of  MAT concentration  against  Hamboro  diseases  in  poultry’s  body  and  its  conservation needed  to  determine  the  optimal  conditions  for  vaccination  in  poultry  raising industry.

Key words : Hamboro disease, specific prophylactic activity,  vaccination, anti-bodies, variety coefficient, Deventer's method.