2004
DOI: 10.1080/0379450310001636255
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Maternal vaccination against subclinical necrotic enteritis in broilers

Abstract: The inclusion of antibacterial feed additives has until now been the major strategy for controlling Clostridium perfringens-associated necrotic enteritis in broilers. In the present study, the effect of maternal immunization against the disease was examined. Broiler breeder hens were injected intramuscularly with candidate vaccines based on C. perfringens type A and type C toxoids adjuvanted with aluminium hydroxide. Vaccination resulted in a strong serum immunoglobulin G response to C. perfringens alpha-toxin… Show more

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Cited by 91 publications
(88 citation statements)
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“…The main reason is that the C. perfringens counts of almost all birds with NE were very high, whether GEU was present or not. This association between NE and C. perfringens counts is in accordance with previous findings (Kaldhusdal & Hofshagen, 1992;Løvland et al ., 2004). Furthermore, our results show that NE may be found also in birds without GEU.…”
Section: Discussionsupporting
confidence: 82%
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“…The main reason is that the C. perfringens counts of almost all birds with NE were very high, whether GEU was present or not. This association between NE and C. perfringens counts is in accordance with previous findings (Kaldhusdal & Hofshagen, 1992;Løvland et al ., 2004). Furthermore, our results show that NE may be found also in birds without GEU.…”
Section: Discussionsupporting
confidence: 82%
“…perfringens increased with age, reaching its maximum at 27 to 29 days of age, when it stabilized and even decreased. This development has been observed in other studies (Løvland et al ., 2004).…”
Section: Discussionsupporting
confidence: 64%
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“…Scoring for necrotic enteritis. In treatment group B2 (no oat hulls, access to litter, no narasin) and treatment group D2 (oat hulls, access to litter, no narasin), the mucosal surface of the small intestine of each chicken was inspected for ulcers (a distinct mucosal depression measuring at least 1 mm) and pseudomembranes (at least 1 mm), which are characteristic of C. perfringens-associated necrotic enteritis (Lovland et al, 2004). A lesion was recorded as focal if the maximum extension was at least 1 mm but less than the circumference of the small intestine.…”
Section: Methodsmentioning
confidence: 99%