Protective efficacy of commercial vaccines against a virulent field strain of Clostridium chauvoei
نویسندگان
چکیده
منابع مشابه
Protective efficacy of commercial live vaccines against very virulent infectious Bursal disease virus (vvIBDV) in Ghana
In spite of the intensive and varied vaccination procedures to control Infectious Bursa Disease (IBD), the emergence of a very virulent (vv) IBD pathotype in Ghana has led to high economic losses in the poultry industry. The potencies of two live intermediate IBD vaccine strains (TAD and Nobilis D78) and an intermediate-plus (hot) vaccine strain (228E) used in Ghana were evaluated by challengin...
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Clostridium chauvoei is the etiological agent of blackleg, a disease of cattle and sheep with high mortality rates, causing severe economic losses in livestock production. Here, we report the draft genome sequence of the virulent C. chauvoei strain JF4335 (2.8 Mbp and 28% G+C content) and the annotation of the genome.
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Despite the intensive vaccination policy that has been put in place to control Newcastle disease virus (NDV), the recent emergence of NDV genotype VII strains in Korea has led to significant economic losses in the poultry industry. We assessed the ability of inactivated, oil-emulsion vaccines derived from La Sota or Ulster 2C NDV strains to protect chickens from challenge with Kr-005/00, which ...
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The effectiveness of two commercial infection bronchitis vaccines including H120 and 4/91 was evaluated in broiler chickens challenged with IBV strain IRFIB32 in different vaccination programmes. For this purpose, 180 day-old Cobb 500 chicks were randomly divided in six treatment groups. Four chicks in each group were humanely sacrificed at 2, 4, 6 and 10 days post challenge for evaluating cili...
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In swine and bovines, leptospirosis prevention and control is carried out via vaccination of susceptible animals using bacterins. However, the efficiency of leptospirosis vaccines has been questioned. This work aimed to investigate the potency of five leptospirosis vaccines sold commercially in Brazil, challenging the animals with one autochthonous strain of Leptospira, Canicola serovar, denote...
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ژورنال
عنوان ژورنال: Semina: Ciências Agrárias
سال: 2019
ISSN: 1679-0359,1676-546X
DOI: 10.5433/1679-0359.2019v40n5p1837