scholarly journals The effect of Staphylococcusaureus extracellular products (SECP) on performance, selective innate immune indexes, and humoral immune response against avian influenza and Newcastle disease vaccines in broiler chickens

2020 ◽  
Vol 44 (6) ◽  
pp. 1291-1298
Author(s):  
Teimour TABARI ◽  
Younes PAPI ◽  
Esmaeil AZIZI ◽  
Forough TALAZADEH ◽  
Ramezan Ali JAFARI ◽  
...  
Keyword(s):  
Immune Response ◽  
Avian Influenza ◽  
Newcastle Disease ◽  
Humoral Immune Response ◽  
Broiler Chickens ◽  
Innate Immune ◽  
Humoral Immune ◽  
Extracellular Products

scholarly journals EVALUATION OF MATERNALLY DERIVED ANTIBODIES AGAINST NEWCASTLE DISEASE VIRUS AND ITS EFFECT ON VACCINATION IN BROILER CHICKS

2010 ◽  
Vol 7 (2) ◽  
pp. 296-302 ◽  
Author(s):  
MA Jalil ◽  
MA Samad ◽  
MT Islam
Keyword(s):  
Immune Response ◽  
Newcastle Disease ◽  
Humoral Immune Response ◽  
Broiler Chickens ◽  
Primary Vaccination ◽  
Challenge Infection ◽  
Broiler Chicks ◽  
Humoral Immune ◽  
Different Ages ◽  
Group B

The study was conducted to determine the persistence of maternally derived antibody (MDA) and its effects on protection against NDV in broiler chickens and to investigate the status of humoral immune response following vaccination with BCRDV® (F-strain, lentogenic) at different ages of broiler chickens during the period from August to October,  2008. A total of 90 day-old broiler chicks of Cobb 500 strain with the history of vaccination of parent stock against Newcastle disease (ND) was divided into three groups (A, B and C). Birds of group A (n = 35) were used for the study of protection ability of MDA against NDV, the birds of group B (n = 45) were used for the measurement of humoral immune response in chickens following vaccination at different ages and birds of group C (n = 10) were used for the determination of persistence of maternally derived antibody. The level of antibody titre against NDV was determined by HI test. The protective potentiality of MDA and vaccine was determined by the rate of survivability of the chickens following challenge infection. It was observed that the MDA titre in day-old chicks was higher and gradually declined at minimal level at day 28. The MDA titre of 128 or above protected the birds following challenge infection with virulent NDV. There were significant decrease in HI titres of chickens which were vaccinated once at day 1 and day 7, and could not withstand challenge infection with virulent NDV. Single vaccination with BCRDV® at day 14 triggered the production of antibody but could not provide complete protection to the birds. The birds which were boosted with the same vaccine 7 days and 21 days after primary vaccination produced better immune response. However, the birds which were vaccinated primarily at day 1 and boosted at day 7 could not withstand the challenge completely. Of the other regimens of twice vaccination, primary vaccination at day 7 and booster dosing at day 28 was found to be the best in terms of immune response and protection potentiality. Therefore, it may be concluded that (a) The MDA titre level of 128 or above is sufficient to protect broilers against challenge with virulent NDV,( b) Primary vaccination at day 7 followed by a booster dosing at day 28 may be followed for better immune response and protection against ND in broilers.DOI: 10.3329/bjvm.v7i2.5995Bangl. J. Vet. Med. (2009). 7(2) : 296 – 302

scholarly journals A Comparative Study of the Innate Humoral Immune Response to Avian Influenza Virus in Wild and Domestic Mallards

2020 ◽  
Vol 11 ◽  
Author(s):  
Jacintha G. B. van Dijk ◽  
Josanne H. Verhagen ◽  
Arne Hegemann ◽  
Conny Tolf ◽  
Jenny Olofsson ◽  
...  
Keyword(s):  
Immune Response ◽  
Avian Influenza ◽  
Immune Function ◽  
Innate Immune Response ◽  
Acute Phase ◽  
Humoral Immune Response ◽  
Innate Immune ◽  
Wild Type ◽  
Free Living ◽  
Humoral Immune

Domestic mallards (Anas platyrhynchos domesticus) are traditionally used as a model to investigate infection dynamics and immune responses to low pathogenic avian influenza viruses (LPAIVs) in free-living mallards. However, it is unclear whether the immune response of domestic birds reflects the response of their free-living counterparts naturally exposed to these viruses. We investigated the extent to which the innate humoral immune response was similar among (i) wild-type domestic mallards in primary and secondary infection with LPAIV H4N6 in a laboratory setting (laboratory mallards), (ii) wild-type domestic mallards naturally exposed to LPAIVs in a semi-natural setting (sentinel mallards), and (iii) free-living mallards naturally exposed to LPAIVs. We quantified innate humoral immune function by measuring non-specific natural antibodies (agglutination), complement activity (lysis), and the acute phase protein haptoglobin. We demonstrate that complement activity in the first 3 days after LPAIV exposure was higher in primary-exposed laboratory mallards than in sentinel and free-living mallards. LPAIV H4N6 likely activated the complement system and the acute phase response in primary-exposed laboratory mallards, as lysis was higher and haptoglobin lower at day 3 and 7 post-exposure compared to baseline immune function measured prior to exposure. There were no differences observed in natural antibody and haptoglobin concentrations among laboratory, sentinel, and free-living mallards in the first 3 days after LPAIV exposure. Our study demonstrates that, based on the three innate humoral immune parameters measured, domestic mallards seem an appropriate model to investigate innate immunology of their free-living counterparts, albeit the innate immune response of secondary-LPAIV exposed mallards is a better proxy for the innate immune response in pre-exposed free-living mallards than that of immunologically naïve mallards.

scholarly journals Humoral Immune Response to Avian Influenza Vaccination Over a Six-Month Period in Different Species of Captive Wild Birds

2008 ◽  
Vol 52 (2) ◽  
pp. 222-228 ◽  
Author(s):  
Maria Furger ◽  
Richard Hoop ◽  
Hanspeter Steinmetz ◽  
Ulrike Eulenberger ◽  
Jean-Michel Hatt
Keyword(s):  
Immune Response ◽  
Avian Influenza ◽  
Influenza Vaccination ◽  
Humoral Immune Response ◽  
Wild Birds ◽  
Humoral Immune

scholarly journals Feeding of dried sweet orange (Citrus sinensis) peel on humoral immune response of broiler chickens

2019 ◽  
Vol 8 (4) ◽  
pp. 361-367 ◽  
Author(s):  
Z. Pourhossein ◽  
A. A. A. Qotbi ◽  
A. Seidavi ◽  
V. Laudadio ◽  
D. Mazzei ◽  
...  
Keyword(s):  
Immune Response ◽  
Humoral Immune Response ◽  
Citrus Sinensis ◽  
Broiler Chickens ◽  
Sweet Orange ◽  
Humoral Immune

Glycans from avian influenza virus are recognized by chicken dendritic cells and are targets for the humoral immune response in chicken

2013 ◽  
Vol 56 (4) ◽  
pp. 452-462 ◽  
Author(s):  
Eveline D. de Geus ◽  
Boris Tefsen ◽  
Daphne A. van Haarlem ◽  
Willem van Eden ◽  
Irma van Die ◽  
...  
Keyword(s):  
Immune Response ◽  
Dendritic Cells ◽  
Influenza Virus ◽  
Avian Influenza ◽  
Avian Influenza Virus ◽  
Humoral Immune Response ◽  
Humoral Immune
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