scholarly journals Determination of immune response of imported Newcastle disease virus vaccines in broiler chickens

1970 ◽  
Vol 6 (2) ◽  
pp. 139-144
Author(s):  
MS Islam ◽  
AKM Khasruzzaman ◽  
MT Hossain ◽  
MT Islam ◽  
MH Chowdhury ◽  
...  
Keyword(s):  
Immune Response ◽  
Newcastle Disease ◽  
Broiler Chickens ◽  
Geometric Mean ◽  
Primary Vaccination ◽  
Unvaccinated Control ◽  
Antibody Titres ◽  
Newcastle Disease Vaccine ◽  
Group 1

A study was undertaken to determine the immune response of eight different imported live NDV vaccines in broiler chickens in the Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh during the period from July to December 2008. A total of 55 broiler chickens (Ross breed) were divided into eleven groups such as 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11 of which group 1, 3, 5, 7 and 9 were vaccinated primarily with Nobilis® MA5+Clone30, Avipro® ND-IB HB1, Cevac® BIL, Newcastle-Bronchitis Vaccine Fortdodge® and Avipro® ND LaSota vaccine respectively at day 5 of age and secondarily with Nobilis® ND Clone 30, Avipro® ND LaSota, Cevac® New L, Newcastle Disease vaccine Fortdodge® and Avipro® ND LaSota vaccine respectively at day 21 of age by single eye instillation and 2, 4, 6, 8 and 10 were vaccinated with the same vaccines respectively by double eye instillation following the same schedule. Group 11 was kept as unvaccinated control. Sera samples were collected after 10 days of each vaccination and at day 5, 15, 20, 31 of age from nonvaccinated control and subjected to HI test for the determination of antibody titres. It was observed that after primary vaccination the geometric mean (GM) of HI titres of double eye vaccinated groups differed significantly (P

scholarly journals Determination of immune response of Newcastle disease virus vaccines in layer chickens

1970 ◽  
Vol 7 (2) ◽  
pp. 329-334 ◽  
Author(s):  
NA Banu ◽  
MS Islam ◽  
MMH Chowdhury ◽  
MA Islam
Keyword(s):  
Immune Response ◽  
Newcastle Disease ◽  
Primary Vaccination ◽  
Unvaccinated Control ◽  
Antibody Titres ◽  
Antibody Titers ◽  
The Mean ◽  
Layer Chickens ◽  
Group 10

The study was conducted for the detection of persistence of Maternally derived antibody (MDA) as well as the comparative evaluation of antibody production of nine different NDV vaccines in layer chickens in the Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh during the period from July to December 2008. A total of 55 layer chicks (ISA Brown breed) were divided into eleven groups each consisting of five birds of which odd number groups were vaccinated primarily with Nobilis® MA5+Clone 30, Avipro® ND-IB HB1, Cevac® BIL, Newcastle-Bronchitis Vaccine Fortdoge® and Avipro® ND LaSota vaccine respectively at day 5 of age and secondarily with Nobilis® ND Clone30, Avipro® ND LaSota, Cevac® New L, Newcastle Disease Vaccine Fortdoge® and Avipro® ND LaSota vaccine respectively at day 21 of age by single eye instillation and even number groups were vaccinated with the same vaccines respectively by double eye instillation following the same schedule. Again group 9 and group 10 were also vaccinated with RDV at 60 days of age through intramuscular route. Group 11 was kept as unvaccinated control. Sera samples were collected after 10 days of each vaccination and at day 5, 15, 20, 31 of age from unvaccinated control and subjected to HI test for the determination of antibody titres. It was observed that after primary vaccination the mean of HI titres of double eye vaccinated groups differed significantly (P<0.01). Overall analysis of mean of HI titres of double eye vaccinated groups revealed that there were significant increases (P<0.01) in HI titres in groups 8 (891.44±228.97) and 10 (861.66±140.21) compared to other groups. It was observed that secondary vaccination produced higher immune response compared to primary vaccination in case of all the vaccinated groups and double eye vaccination produced higher immune response compared to single eye vaccination in case of all the vaccinated groups. It was also observed that following vaccination with RDV in groups 9 and 10, HI titres increased significantly (P<0.01) which indicated that group 10 (1204.30±280.43 ) produced significantly higher antibody titres than group 9 (966.74±144). Maternal antibody was high (483.37±181.01) at day 5 of age and persisted to a minimal level (8.00±0.00) until the age of day 20 and almost disappears (≤4±0) at day 31 of age. From the present research it may be concluded that LaSota strain produced higher immune response than Clone 30 and B1 strain, Fortdose® and Avipro® vaccine produced higher immune response than all other vaccines and vaccination with lentogenic strains followed by mesogenic strain produced higher antibody titers used in this study. Keywords: Immune response; Newcastle disease; Vaccines; Layer chickens DOI: 10.3329/jbau.v7i2.4743 J. Bangladesh Agril. Univ. 7(2): 329-334, 2009

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

Effects of dietary supplementation of cinnamaldehyde and formic acid on growth performance, intestinal microbiota and immune response in broiler chickens

2017 ◽  
Vol 57 (5) ◽  
pp. 821 ◽  
Author(s):  
M. Pathak ◽  
G. P. Mandal ◽  
A. K. Patra ◽  
I. Samanta ◽  
S. Pradhan ◽  
...  
Keyword(s):  
Immune Response ◽  
Growth Performance ◽  
Antibody Titer ◽  
Newcastle Disease ◽  
Broiler Chickens ◽  
Feed Additives ◽  
Growth Promoter ◽  
Treatment Groups ◽  
E Coli ◽  
Newcastle Disease Vaccine

An experiment was conducted to investigate the effects of replacing antibiotic growth promoter (AGP) with a combination of essential oil and organic acids (EO + OA) on growth performance, gut microbiota and immune response in broiler chickens. In Experiment 1, 320 day-old broiler chicks were randomly distributed to 32 pens with 10 birds in each pen and the pens were equally allotted to four treatment groups. In Experiment 2, 120 day-old chicks were divided into the same four treatment groups, each group containing three replicated pens with 10 birds in each pen. The groups were (1) Negative Control (NC) without AGP or other growth-promoting feed additives; (2) AGP (NC + enramycin; 125 mg/kg feed; (3) OA (NC + OA; 500 mg/kg feed); and (4) EO + OA (NC + a combination of cinnamaldehyde and calcium formate; 500 mg/kg feed). Experiment 1 lasted for 40 days, whereas Experiment 2 continued for 28 days. In Experiment 2, all birds were orally challenged with Escherichia coli (108 bacteria/bird) on Day 14. Overall intake, growth and feed conversion ratio (FCR) on Day 40 had no difference (P > 0.05) among the groups in Experiment 1. In Experiment 2, growth, feed intake and FCR were not affected by any dietary treatments until Day 14, but after being challenged with E. coli, bodyweight gain and FCR improved (P < 0.05) for AGP and EO + OA compared with NC. Mortality rate was also lower (P < 0.05) for AGP and EO + OA than NC in Experiment 2. Villi height was higher (P < 0.001) in OA and EO + OA groups compared with NC and AGP groups. Any treatment did not affect (P > 0.05) the counts of total bacteria, E. coli and Lactobacillus in the contents of ileum and caecum. However, Salmonella counts in the ileal and caecal contents decreased (P < 0.001) for AGP, OA and EO + OA compared with NC group. Clostridium counts were lower for EO + OA group than for NC and AGP groups in the ileum, and for AGP, OA and EO + OA groups than for NC in the caeca (P < 0.05). Antibody titer on Day 35 against Newcastle disease vaccine was higher in EO + OA group than in NC, AGP and OA groups (P < 0.001). In conclusion, EO + OA did not affect growth and FCR in broilers. However, AGP and EO + AO improved growth performance and FCR after being challenged with E. coli. Moreover, EO + OA was effective in reducing the Clostridium count in the small intestine and caecum and increasing the villus height and antibody titer against Newcastle disease vaccine.

scholarly journals Effects of polysaccharide from Ophiopogon japonicus on immune response to Newcastle disease vaccine in chicken

2016 ◽  
Vol 36 (12) ◽  
pp. 1155-1159 ◽  
Author(s):  
Xu Song ◽  
Mei Cao ◽  
Zhongqiong Yin ◽  
Renyong Jia ◽  
Yuanfeng Zou ◽  
...  
Keyword(s):  
Immune Response ◽  
Newcastle Disease ◽  
Ophiopogon Japonicus ◽  
Newcastle Disease Vaccine

scholarly journals Enhancement in humoral response against inactivated Newcastle disease vaccine in broiler chickens administered orally with plant-derived soyasaponin

2020 ◽  
Vol 99 (4) ◽  
pp. 1921-1927 ◽  
Author(s):  
Ghania Naveed ◽  
Syed Ehtisham-ul-Haque ◽  
Iahtasham Khan ◽  
Sajjad ur Rahman ◽  
Sidra Anam ◽  
...  
Keyword(s):  
Newcastle Disease ◽  
Broiler Chickens ◽  
Humoral Response ◽  
Newcastle Disease Vaccine

scholarly journals The effect of salivarus on the immune response to Newcastle and Gumboro disease vaccines and on performance

2003 ◽  
Vol 27 (1) ◽  
pp. 134-145
Author(s):  
Ali A.H. Shalash ◽  
Ebtesam G. A. Al-Oubaidi
Keyword(s):  
Immune Response ◽  
Haemagglutination Inhibition ◽  
Feed Consumption ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Agar Gel ◽  
Group 2 ◽  
Performance Results ◽  
Newcastle Disease Vaccine ◽  
Group 1

A total of 50 day - old broiler chicks were divided equally into two groups and treated with Lactobacillus salivarus (L S) as follow Group 1: given 3.2X108 cfu/ ml of LS in crop at day 1 of age. Group 2:Untreated control  The two groups were vaccinated against Newcastle disease vaccine (ND vac) Lasota strain at age 10, 21, and 35 days direct in the crop.  The groups were vaccinated in the crop against Gumboro vaccine (G vac) leukert strain at 5, 14 and 24 day of age.  Haemagglutination inhibition test was used and determine antibodies titer (Abt) of (ND vac) and the agar gel precipitating test to 19, 29 and 39 of the chick's age.  The result showed significant (p < 0.05) increase in Abt most of the weeks in the first group compared with second groups  The performance results showed significant (p < 0.05) increase in the weight, weight gain , feed consumption and feed conversion ratio for chicks treated with LS.  It was concluded that oral administration of Lactobacillus salivarus to day – old chicks has a beneficial effect on immune response to ND vac and G vac and on chick's performance.

scholarly journals Natural sepiolite efficiency in reducing 137Cs transfer and deposition into meat and edible organs of broiler chickens

2011 ◽  
Vol 27 (2) ◽  
pp. 183-188 ◽  
Author(s):  
D. Vitorovic ◽  
G. Vitorovic ◽  
B. Mitrovic ◽  
V. Andric
Keyword(s):  
Broiler Chickens ◽  
Protective Action ◽  
Total Activity ◽  
Control Group ◽  
Standard Diet ◽  
Percentage Reduction ◽  
Group 2 ◽  
137Cs Deposition ◽  
Group 1

The objectives of the present study were to examine the level of radiocesium deposit in meat and edible organs of broiler chickens as well as to investigate efficiency of natural sepiolite in reducing 137Cs deposition in meat, liver and gizzard of alimentary contaminated broiler chickens. Broiler chickens (six weeks of age) were fed with the standard diet and each broiler was given a single oral dose of 137Cs, total activity of 3750 Bq. The broilers were divided into two groups (10 broilers per group). The group 1 was control (received only radiocesium). The broilers of the group 2, in addition to radiocesium received natural sepiolite solution (2 g sepiolite per bird). After 24 hours, all broilers, from each group, were stunned and killed. The samples of meat, (breast and legs), liver and gizzard were taken from each broiler, for gamma spectrometry determination of radiocesium activity. After 24 hours of contamination, 56 % of introduced 137Cs radioactivity was deposited in the meat (breast and legs muscles), 1 % in the liver and 2,4 % in the gizzard of broiler chickens 42 days of age. Natural sepiolite demonstrated insufficient protective action. Compared to the control group, percentage reduction (decreasing percentage) of 137Cs deposition in meat was 16%, in liver 5% and in gizzard 12%.

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