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Evaluation of immune response of ducks vaccinated with live attenuated Salmonella typhimurium vaccine [electronic resource].

By:

Ahmed, Hanan A

Contributor(s):

Shafay, S. M

Language: English Summary language: Arabic Description: p151-155Other title:

تقييم الاستجابة المناعية للبط المحصن بلقاح السالمونيلا تيفيميوريوم الحى المستضعف [Added title page title]

Uniform titles:

Zagazig veterinary journal, 2010 v. 38 (4) [electronic resource].

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In: Zagazig Veterinary Journal 2010.v.38(4)Summary: The present work evaluated the immune response of ducks to the live attenuated Salmonella typhimurium vaccine where sixty of three weeks old ducklings were vaccinated with such vaccine via drinking water while another forty birds were kept without vaccination as a control. Challenge of these ducklings four weeks post vaccination showed that vaccinated birds were able to withstand the virulent strain of Salmonella typhimurium with protection rate reached 90% while non vaccinated birds did not. In addition, the enzyme linked immune sorbent assay revealed that vaccinated ducklings exhibited high specific antibody titers (2915) by the fourth week post vaccination. Shedding of the organism was observed only during the first 2 weeks post vaccination that in cloacal swabs and internal organs. So, it could be concluded that the live attenuated Salmonella typhimurium vaccine is able to protect ducklings against the virulent strain.

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The present work evaluated the immune response of ducks to the live attenuated Salmonella typhimurium vaccine where sixty of three weeks old ducklings were vaccinated with such vaccine via drinking water while another forty birds were kept without vaccination as a control. Challenge of these ducklings four weeks post vaccination showed that vaccinated birds were able to withstand the virulent strain of Salmonella typhimurium with protection rate reached 90% while non vaccinated birds did not. In addition, the enzyme linked immune sorbent assay revealed that vaccinated ducklings exhibited high specific antibody titers (2915) by the fourth week post vaccination. Shedding of the organism was observed only during the first 2 weeks post vaccination that in cloacal swabs and internal organs. So, it could be concluded that the live attenuated Salmonella typhimurium vaccine is able to protect ducklings against the virulent strain.

Summary in Arabic.

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