Nature of the immune response in coho salmon Oncorhynchus kisutch following vaccination with Vibrio ordalii lipopolysaccharide by two different routes

Protective immunity in rainbow trout Oncorhynchus mykiss following immunization with distinct molecular mass fractions isolated from Flavobacterium psychrophilum

“…Although A. salmonicida LPS is immunogenic, it does not appear to play a protective role (Thuvander et al 1993, Aakre et al 1994. Immunization with LPS from other Gram-negative bacteria has resulted in protection (Aoki et al 1984, Salati & Kusuda 1985, Saeed & Plumb 1986, Baba et al 1988, Velji et al 1990, Soltani & Kalbassi 2001, and this protection has been reported as antibody-mediated (Saeed & Plumb 1986, Velji et al 1991. Our findings suggest that the O-polysaccharide of F. psychrophilum may be a protective antigen, which warrants further investigation.…”

Humoral immune responses of channel catfish (Ictalurus punctatus) fry and fingerlings exposed toEdwardsiella ictaluri

“…Maternal transfer of protection was suggested in tilapia, O. mossambicus, O. aureus, (Takemura, 1993;Mor & Avtalion, 1990), coho salmon, Onchorhynchus kisutch (Brown et al, 1997), plaice (Bly et al, 1986), steelhead trout, Onchorhynchus mykiss (Shors & CATFISH FRY HUMORAL RESPONSES Winston, 1989), and channel catfish (Hayman & Lobb, 1993). Transfer of maternally derived antibodies to embryos was demonstrated in coho salmon (Brown et al, 1997;Velji et al, 1991).…”

Anal immunisation of carp and rainbow trout with different fractions of aVibrio anguillarumbacterin

“…Apparently more LPS is needed for anal administration compared to other routes. Much less LPS seems to be su$cient to induce immune responses when administered by injection (Saeed & Plumb, 1987;Salati et al, 1989;Velji et al, 1990;Velji et al, 1991) or immersion (Velji et al, 1990).…”