Naslov
Evaluation of protetcion of piglets originating from vaccinated sows after vaccination with classical swine fever virus strain China

Autori
Terzić, Svjetlana ; Ballarin-Perharić, Alenka ; Jemeršić, Lorena ; Cizelj, Andrej ; Janić, Damir ; Lojkić, Mirko ; Čajavec, Stanislav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 15th IPVS Congress, Birmingham, England, 5-9 July 1998. / - Birmingham : Nothingam University Press, 1998

Skup
15th IPVS Congress

Mjesto i datum
Birmingham, Ujedinjeno Kraljevstvo, 05.07.1998. - 09.07.1998

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
pigs; vaccination; C strain

Sažetak
In the first weeks of life the piglets originating from vaccinated sows have a protective level of specific maternal antibodies for CSF virus. Due to the interference of specific maternal antibodies and the vaccinal virus the piglets originating from vaccinated sows should be vaccinated by the end of the second month of age (1). In our trials it was evident that in the first three weeks of life the piglets originating from vaccinated sows had the level of specific maternal antibodies for CSF virus which protected them completely from infection. In the period from the 21st to the 42nd day of age the level of specific maternal antibodies provided a partial protection when challenged, but it was high enough for the interference with the vaccinal virus. After the 56th day the level of specific maternal antibodies in the sera of piglets was not high enough to protect the animals from the infection, but it had no negative effects to developing the active immunity after a single vaccination with 100 RaTD50. For the success of vaccination of the piglets originating from vaccinated sows it is necessary to know the level of specific maternal antibodies for CSF virus. According to the results obtained and considering the epizootiological situation in the Republic of Croatia the programme of twofold vaccination of piglets prescribed by the Law is justified.

Izvorni jezik
Engleski

Znanstvena područja
Veterinarska medicina

POVEZANOST RADA