Improvement of the efficacy of influenza vaccination (H5N1) in chicken by using extract of Cochinchina momordica seed (ECMS).
Seeds of a Chinese traditional medicine plant, Cochinchina momordica were used in the present study for the improvement of influenza vaccine (H5N1) in chicken. Crude extraction from Cochinchina momordica seed (ECMS) was obtained by ethanol extraction method. In experiment No. 1, two weeks old chickens were immunized with influenza vaccine (H5N1) alone or combined with ECMS (5, 10, 20, 40 and 80 microg/dose). Serum IgG antibody levels (by ELISA) as well as effects on daily weight gain were measured on 0, 7, 14 and 28th day after immunization. Results revealed that all ECMS groups numerically increased the antibody levels while 10 and 20 microg/dose groups significantly (P<0.05) enhanced total IgG antibody on day 28, when compared with control. Average daily weight gain was also significantly higher in 20 microg/dose ECMS group. Adjuvant effect was also confirmed in experiment No. 2 when chickens were immunized with 20 microg/dose ECMS and antibody titer was measured through hemagglutination inhibition (HI). It is concluded that ECMS has potential to improve the immune responses and deserve further study as an adjuvant.
Rajput
Zahid Iqbal
ZI
Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310029, China. rao_rajput2002@yahoo.com
Xiao
Chen-wen
CW
Hu
Song-hua
SH
Arijo
Abdullah G
AG
Soomro
Noor Mohammad
NM
D000383:Agriculture / Q000379:methods; D000818:Animals; D002645:Chickens; D004338:Drug Combinations; D004357:Drug Synergism; D004365:Drugs, Chinese Herbal / Q000008:administration & dosage*; D053124:Influenza A Virus, H5N1 Subtype / Q000187:drug effects*; D007252:Influenza Vaccines / Q000008:administration & dosage*; D005585:Influenza in Birds / Q000517:prevention & control*; D019684:Magnoliopsida / Q000737:chemistry*; D011201:Poultry Diseases / Q000517:prevention & control*; D012639:Seeds / Q000737:chemistry; D016896:Treatment Outcome; D014611:Vaccination / Q000379:methods
D004338:Drug Combinations; D004365:Drugs, Chinese Herbal; D007252:Influenza Vaccines