Progress in control measures for chicken coccidiosis. A review
2006
Kitandu, A.(Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Klinika Chorob Ptaku, Plazu a Drobnych Savcu) E-mail:[email protected] | Juranova, R.(Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Klinika Chorob Ptaku, Plazu a Drobnych Savcu)
For many years, prophylactic use of anticoccidial drugs has been the primary means of controlling chicken coccidiosis in broiler industry and has played a major role in the growth of this industry. The use of live vaccines is well established in the control of the disease. Three groups of live vaccines can be distinguished based on the characteristics of Eimeria species included in the product as follows: vaccines based on live virulent strains, vaccines based on live attenuated strains, vaccines based on live strains that are relatively tolerant to the ionophores. In addition, non-live subunit vaccines do exist, too. The mounting problem of drug resitance of Eimeria species has prompted major research efforts to seek alternative means of control through increased knowledge of understanding the immunomodulation, natural-product feed additives, advances in live and recombinant vaccines. This article reviews the above mentioned methods in control of chicken coccidiosis.
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