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Abstrakty
The purpose of the study was to determine the efficacy of Enterisol Ileitis vaccine administered orally in water against porcine proliferative enteropathy. For a comparison, two administration protocols were used for the vaccination: individual oral drench or via drinking water accessible to the herd. The efficacy of the vaccine was studied on breeding, commercial, and fattening swine farms. As has been found, the percentage of immunised pigs that required further therapeutic action, during the fattening period, was significantly lower than that observed in the control (non-treated) group. Besides, the number of culled and Lawsonia intracellularis positive pigs was reduced. Better efficacy was found with individual oral drench applications than via drinking water. In addition, the vaccination had a positive impact on daily weight gain. In general, better results were observed on breeding and commercial farms than on fattening farms.
Wydawca
Rocznik
Tom
Numer
Strony
21-25
Opis fizyczny
p.21-25,fig.,ref.
Twórcy
autor
- National Veterinary Research Institute, 24-100 Pulawy, Poland
autor
autor
autor
autor
Bibliografia
- 1. Kroll J., Roof M.B., McOrist S.: Evaluation of protective immunity in pigs following oral administration of an avirulent live vaccine of Lawsonia intracellularis. Am J Vet Res 2004, 65, 559-565.
- 2. Krysicki W., Bartos J., Dyczka W., Królikowska K., Wasilewski M.: Rachunek prawdopodobieństwa i statystyka matematyczna w zadaniach. Część II. Statystyka matematyczna. Rozdział „Weryfikacja hipotezy o równości wskaźników struktury dwóch populacji". Wyd. Naukowe PWN, Warszawa, 1986.
- 3. McOrist S., Gebhart C. J.: Proliferative enteropathies. In: Diseases of Swine. Edited by Straw B.E., Zimmerman J.J., D'Allaire S., and Taylor D.J., Blackwell Publishing, Ames, USA, 2006, pp. 727-737.
- 4. McOrist S., Smits R.J.: Field evaluation of an oral attenuated Lawsonia intracellularis vaccine for porcine proliferative enteropathy (ileitis). Vet Rec 2007, 161, 26-28.
- 5. Messier S., Sanford E.: Cost benefit of ileitis vaccination vs in-feed medication in a multi-site system. Proceedings of the 20th IPVS Congress, Durban, South Africa, 2008, p. 283.
- 6. Scholz A.M., Nuske S., Kremer P., Forster M.: Costs of sub-clinical ileitis during finishing: an experimental approach. Pig J 2008, 61, 26-35.
- 7. Żmudzki J.: Differential diagnosis of haemorrhagic enteropathies using polymerase chain reaction (PCR). Doctoral Thesis, National Veterinary Research Institute, Pulawy, Poland, 2005.
Typ dokumentu
Bibliografia
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