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Thú y

Tô Long Thành, Nguyễn Hoàng Đăng(1), Tống Hữu Hiến, Bạch Quốc Thắng, Daniel Torrents

Đánh giá hiệu lực của vacxin Amervac PRRS đối với chủng virus PRRS gây bệnh động lực cao ở Việt Nam

Evaluation of efficiency of Amervac PRRS vaccine for the High virulent, pathologenic virus strain in Vietnam

Khoa học Kỹ thuật thú y

2014

1

5-16

1859-4751

Live AMERVAC PRRS vaccine produced by HIPRA Laboratory, SA (Spain),was used for testing on pigs raising in Vietnam. The tested result indicated that this vaccine was safe in use. Vaccine virus did not transmit horizontally from experimental pigs to control pigs and had the effect in inducing immune response at higher level when the pig was infected with challenge virus. Immune response induced by vaccine had the effect in reducing the serious level of disease when challenge with 2 virus strains of Vietnam. This result showed clearly when testing the gross and histobiologicallesions in internal organs (particularly is lung). The vaccinated pigs also increased higher body weight compared to the control pigs when applying challenge test. Immune response induced by vaccinating AMERVAC PRRS vaccine had removed the entire of virus in pigs in 2-3 weeks after pigs were infected with PRRS.

TTKHCNQG, CVv 65