scholarly journals Prevalence of poultry diseases in winter season in Chittagong and efficacy of challenge vaccine against Newcastle disease

2018 ◽  
Vol 5 (2) ◽  
pp. 201-208 ◽  
Author(s):  
Md Saiful Bari ◽  
Eaftekhar Ahmed Rana ◽  
Md Harisul Abid ◽  
Nasima Akter ◽  
Md Abu Sayeed
Keyword(s):  
Newcastle Disease ◽  
Winter Season ◽  
Clinical Signs ◽  
Necrotic Enteritis ◽  
Blood Samples ◽  
Initial Stage ◽  
Before And After ◽  
Bursal Disease ◽  
Commercial Broiler ◽  
Post Mortem Findings

A study was undertaken to determine the prevalence of poultry diseases as well as the efficacy of challenge vaccine [ND killed (Lasota)] against Newcastle disease (ND) in commercial broiler and layer farms of Chittagong Metropolitan Area (CMA) during the period from December 2016 to February, 2017. A total of 134 birds were examined from 52 commercial broiler farms and 15 layer farms (two from each farm). The diseases of 67 farms were diagnosed based on the history, clinical signs and post-mortem findings and the efficacy of the ND killed (Lasota) vaccine was determined on the basis of hemagglutination inhibition (HI) test before and after vaccination. Sixty blood samples (20 from each of 3 broiler farms) and 48 eggs (16 from each of 3 layer farms) were collected and HI tests were performed. Among the 67 farms, the prevalence of colibacillosis, salmonellosis, necrotic enteritis, Newcastle disease, infectious bursal disease, mycoplasmosis, brooder pneumonia and mixed infections of colibacillosis and coccidiosis were 11.94%, 4.48%, 7.46%, 8.95%, 16.42%, 7.46%, 5.95% and 7.46%, respectively. Due to vaccination with ND killed (Lasota) vaccine at initial stage of infection the mortality rate reduced to zero and HI titre of the broiler farms increased as 5.40 to 7.55, 4.6 to 7.25, 4.65 to 7.70 and in the layer farms as 4.56 to 7.13, 5.0 to 7.81, 4.93 to 8.13. Due to ND challenge vaccine the initial HI titre level significantly (p<0.05) varies from post HI titer level within both broiler and layer farms.Res. Agric., Livest. Fish.5(2): 201-208, August 2018

scholarly journals Prevalence of poultry diseases in Gazipur district of Bangladesh

2016 ◽  
Vol 2 (1) ◽  
pp. 107-112 ◽  
Author(s):  
Md Kamrul Hassan ◽  
Md Humayun Kabir ◽  
Md Abdullah Al Hasan ◽  
Shobnom Sultana ◽  
Md Shohidul Islam Khokon ◽  
...  
Keyword(s):  
Newcastle Disease ◽  
Clinical Signs ◽  
Infectious Bursal Disease ◽  
Viral Diseases ◽  
Necrotic Enteritis ◽  
Age Group ◽  
Bacterial Diseases ◽  
Infectious Bronchitis ◽  
Prevalent Disease ◽  
Bursal Disease

This study was designed with a view to investigate the prevalence of poultry diseases in Gazipur district of Bangladesh. A total of 679 poultry birds (313 layers, 338 broilers and 28 cockrels) either dead or live were brought for diagnosis of diseases at Gazipur Sadar Upazilla Veterinary Hospital. The diseases were diagnosed on the basis of history, clinical signs and post-mortem findings. The diseases encountered in layers were bacterial diseases 52.29% (salmonellosis 38.56%, colibacillosis 6.7%, fowl cholera 4.79% and necrotic enteritis 1.60%), viral diseases 23.95% (avian influenza 2.56%, Newcastle disease 16.61%, infectious bronchitis 3.19% and avian leucosis 0.64%), mycoplasmal disease (mycoplasmosis 14.70%) and protozoal disease (coccidiosis 5.75%). Salmonellosis was most prevalent disease in age group of >20 weeks, while Newcastle disease most common in 8 to 20 weeks of age group. In case of broiler, bacterial diseases 28.99% (salmonellosis 21.30% and colibacillosis 7.69%), viral diseases 53.24% (infectious bursal disease 28.99%, Newcastle disease 8.87% and infectious bronchitis 15.38%), mycoplasmal disease (mycoplasmosis 7.1%) and protozoal disease (coccidiosis 6.5%). In cockrels, the most prevalent disease was colibacillosis 35.71% followed by salmonellosis 28.57%, Newcastle disease 14.28% and mycoplasmosis14.28%. So among the diseases, salmonellosis is most prevalent disease followed by infectious bursal disease and mycoplasmosis in different kinds of poultry of Gazipur district of Bangladesh.Asian J. Med. Biol. Res. March 2016, 2(1): 107-112

APPLICATION OF SHIFTING ASSAY OF STANDARDIZED INDIRECT AGGLUTINATION (SSIA) FOR DETECTION OF ANTIGENS OF NEWCASTLE DISEASE AND INFECTIOUS BURSAL DISEASE VIRUSES IN CHICKEN FAECES

2013 ◽  
Vol 83 (5) ◽  
Author(s):  
Phạm Hồng Sơn ◽  
Phạm Hồng Kỳ ◽  
Nguyễn Thị Lan Hương ◽  
Phạm Thị Hồng Hà
Keyword(s):  
Newcastle Disease ◽  
Winter Season ◽  
Summer Season ◽  
Infectious Bursal Disease ◽  
Infection Rates ◽  
Faecal Samples ◽  
Infectious Bursal Disease Viruses ◽  
Bursal Disease ◽  
Long Time ◽  
Higher Sensitivity

. Using the method of shifting assay of standardized indirect agglutination (SSIA), the prevalence of Newcastle disease viruses (NDV) and infectious bursal disease viruses (IBDV) in chickens reared in several districts of Thua Thien Hue province in the Spring-Summer and Fall-Winter seasons was determined. In the Spring-Summer season of 2011, about 22.3% of the chickens were infected with NDV, in which A Luoi  accounted for the highest percentage of 25% of the infected chickens and Huong Thuy  the lowest  of 18.2%. Meanwhile, 36% of the same chickens were infected with IBDV, with the highest percentage (46.66%) also in A Luoi and the lowest (30.3%) also in Huong Thuy. The intensity of NDV infection in the Spring-Summer season in A Luoi and Phu Vang was highest (GMT = 1.45), and in Huong Thuy lowest (GMT = 1.31). In addition, in the Fall-Winter season, about 46% of the chickens were infected with NDV and 46.3% with IBDV in Huong Thuy and Phu Vang – two neighbouring districts of Hue City, in which NDV was detected in 54.4% of the chickens in Huong Thuy and 33.9% in Phu Vang. In contrast, IBDV was detected in 41.9% and 52.7% of the chickens respectively in the two districts. The infection was not inter-dependent. Methodically, although the differences in the infection rates were insignificant with the accuracy of 95%, faecal samples showed higher sensitivity in SSIA analyses for both cases of NDV and IBDV infection in comparision with mouth exudates. By SSIA method, results could be read clearly with unaided eyes for a long time after the performance, and it was also proven applicable for cases of haemagglutinating viruses if proper treatments for depletion of animal RBCs’ surface agglutinins could be applied.

scholarly journals Prevalence and pathology of Newcastle disease in broiler at Bochaganj Upazila of Dinajpur, Bangladesh

2016 ◽  
Vol 2 (2) ◽  
pp. 352-356
Author(s):  
Pabitra Kumar ◽  
SM Harun ur Rashid ◽  
Md Haydar Ali ◽  
Hosne Mobarak ◽  
Md Aminul Islam ◽  
...  
Keyword(s):  
Clinical Features ◽  
Newcastle Disease ◽  
Clinical Signs ◽  
Watery Diarrhoea ◽  
Small Scale ◽  
Nasal Discharge ◽  
Pathological Lesions ◽  
Pathological Conditions ◽  
Broiler Flock ◽  
Commercial Broiler

The study was schemed to investigate the prevalence, pathological conditions, mortality and clinical features of Newcastle disease in the small scale commercial broiler farms at Bochaganj upazila of Dinajpur district during January to June, 2014. A total 1950 birds (from 5 farms), among which 160 diseased and dead birds were selected out of which 99 (5.35%) birds were found to be positive for Newcastle disease. The clinical signs of the affected birds were sneezing, coughing, nasal discharge, laboured breathing, and torticolis. Broiler were inactive, weak and rough in appearance, greenish watery diarrhoea occur severely. Nervous sign include clonic, spasm and paralysis of the legs and wings. In this observation, the gross pathological lesions were slight to severe haemorrhages in caecal tonsils, typical lesions were proventricular haemorrhage, most commonly seen in the surface near the junction with the proventriculus. The prevalence of Newcastle disease in Bochaganj upazila was 5.35%. Mortality of Newcastle disease in non-vaccinated and vaccinated broiler flock was 20.76% and 4.6%, respectively.Asian J. Med. Biol. Res. June 2016, 2(2): 352-356

scholarly journals Comparative Evaluation of HVT-IBD Vector, Immune Complex, and Live IBD Vaccines against vvIBDV in Commercial Broiler Chickens with High Maternally Derived Antibodies

Animals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 72 ◽  
Author(s):  
Mahmoud Sedeik ◽  
Nahed El-shall ◽  
Ashraf Awad ◽  
Mohamed Abd El-Hack ◽  
Abdullah Alowaimer ◽  
...  
Keyword(s):  
Immune Complex ◽  
Broiler Chickens ◽  
Clinical Signs ◽  
Age Group ◽  
Feed Conversion ◽  
Vector Vaccine ◽  
Bursal Disease ◽  
Commercial Broiler ◽  
Group B ◽  
Group D

Infectious bursal disease (IBD) causes increased mortality and severe immunosuppression in commercial chickens. Currently, vaccination mainly used to control IBD. In this study, Group A (n = 30) received the HVT-IBD vector vaccine (Vaxxitek®) s/c and Group B (n = 30) received the immune complex vaccine (Bursa-Plex®) s/c at 1 day of age. Group C (n = 30) received a single dose of intermediate plus vaccine (228E) through the eye-drop route at 14 days of age. Group D (n = 30) was vaccinated twice with the intermediate vaccine (D78) at 12 and 22 days of age by eye-drop. Group E (n = 30) had the same treatment as group D along with the IBD killed vaccine (Nobilis G®) at 5 days of age. The PC (n = 20) and NC (n = 20) groups were non IBD vaccinated birds either challenged or not with vvIBDV, respectively; 20 chicks from each group were challenged with vvIBDV at 4 weeks of age. Based on clinical signs, postmortem gross lesions, histopathological changes, mortality rate, feed conversion rate, serology, bursal and spleen indices, the HVT-IBD vector vaccine administered was found to be safer and provided better protection against the vvIBDV challenge. The use of a killed IBD vaccine at an earlier age in broilers strengthened the protection induced by double doses of intermediate vaccines in broilers with high maternally derived antibodies against the vvIBDV challenge.

PSX-B-24 Influence of the immunomodulatory drug Azoxivet on the post-vaccination immune response in laying hens

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 269-269
Author(s):  
Valentina Sabrekova ◽  
Maxim Korenyuga ◽  
Elena Konovalova ◽  
Natalia Rodionova
Keyword(s):  
Immune Response ◽  
Newcastle Disease ◽  
Laying Hens ◽  
Positive Influence ◽  
The Body ◽  
Infectious Bursal Disease ◽  
Post Vaccination ◽  
Before And After ◽  
Bursal Disease ◽  
Immunomodulatory Drug

Abstract Vaccination is a primary way to prevent infectious disease in poultry. The quality of immune response depends on the immune status of the body which, in turn, depends on many endogenous and exogenous factors. This study analyzed the effect of the immunomodulatory drug Azoxivet on the immune response in laying hens after vaccination against Newcastle Disease and Infectious Bursal Disease. There were 4 groups of Loman White cross laying hens (n=20). At age 120 days, all hens habitated in individual cages with an area of 0,15 m2. The conditions of keeping and feeding matched breed requirements. All groups were vaccinated against Newcastle Disease (NDV) (LaSota strain) and Infectious Bursal Disease (IBD) (Winterfield 2512 strain). All groups received Azoxivet (Az) at a dose of 0,3 mg/kg in water three times daily. Blood sera were collected weekly for serological studies using BioChek IBD and NDV test systems. The antibody level of all hens before and after vaccination: 1378 (IBD+Az) vs. 1674,93 (IBD) (P &lt; 0,05), 5194,75 (NDV+Az) vs. 5612,87 (NDV) (P &lt; 0,05). After one week of vaccination: 5931,25 (IBD+Az) vs. 5006,14 (IBD) (P &lt; 0,05), 6207,58 (NDV+Az) vs. 5765,21 (NDV) (P &lt; 0,05). Two weeks: 11086,00 (IBD+Az) vs. 10485,83 (IBD) (P &lt; 0,05), 11255,25 (NDV+Az) vs. 8478,75 (NDV) (P &lt; 0,05). Three weeks: 11478 (IBD+Az) vs. 8286 (IBD) (P &lt; 0,05), 14725 (NDV+Az) vs. 12677 (NDV) (P &lt; 0,05). Four weeks: 12999 (IBD+Az) vs. 1009,67 (IBD) (P &lt; 0,05), 17399 (NDV+Az) vs. 16373,17 (NDV) (P &lt; 0,05). Five weeks: 13601,15 (IBD+Az) vs. 9021,30 (IBD) (P &lt; 0,05), 19671 (NDV+Az) vs. 16309 (NDV) (P &lt; 0,05). Thus, Azaxul had a positive influence on the post-vaccination immune response in laying hens when used after Newcastle Disease and Infectious Bursal Disease vaccines. The results of the study can be used to improve disease prevention in poultry farming.

Detection of very virulent infectious bursal disease virus from a field outbreak in Central India

2012 ◽  
Vol 60 (1) ◽  
pp. 165-174 ◽  
Author(s):  
Azad Singh ◽  
Megha Bedekar ◽  
Rakesh Sharma ◽  
Bikash Sarkhel ◽  
Sanjeev Singh ◽  
...  
Keyword(s):  
Disease Virus ◽  
Infectious Bursal Disease Virus ◽  
Clinical Signs ◽  
Central India ◽  
Infectious Bursal Disease ◽  
Nucleotide Sequence Analysis ◽  
Nucleotide Polymorphisms ◽  
Vp2 Gene ◽  
Bursal Disease ◽  
Commercial Broiler

In order to detect infectious bursal disease virus (IBDV), bursal tissue was collected from 10 IBD-suspected birds from a 30-day-old, IBDV-vaccinated commercial broiler chicken flock of 2000 birds exhibiting clinical signs suggestive of infectious bursal disease (IBD). The presence of IBDV was confirmed by partial amplification of the VP2 gene by reverse transcription and polymerase chain reaction. Isolates were identified as very virulent strains of IBDV (vvIBDV) by nucleotide sequence analysis. The comparison of the VP2 nucleotide sequences among the isolates revealed the presence of single-nucleotide polymorphisms in the VP2 gene of IBDV in the same flock. The comparative analysis indicated that these viruses were genetically close to the vvIBDVs previously detected in India. Our analysis provided information about the existence of vvIBDV in Central India.

scholarly journals MORTALITY AND DISEASE STATUS IN HY-LINE AND ISA-BROWN STRAINS OF LAYER CHICKENS REARED IN CAGE SYSTEM IN BANGLADESH

2012 ◽  
Vol 9 (1) ◽  
pp. 1-16 ◽  
Author(s):  
MZ Uddin ◽  
MA Samad ◽  
SML Kabir
Keyword(s):  
Heat Stroke ◽  
Clinical Signs ◽  
Disease Status ◽  
Mortality Rates ◽  
Morbidity And Mortality ◽  
High Morbidity ◽  
Necrotic Enteritis ◽  
Bursal Disease ◽  
Hygienic Measures ◽  
Layer Chickens

Mortality and disease status in Hy-Line (n= 3450) and ISA-Brown (n = 250) strains of layer chickens were carried out in three commercial layer farms in the district of Mymensingh from day-old to 65 weeks age of birds from September 2003 to December 2004. The management including housing, hygienic measures, vaccination practices, diseases occurred and mortality were observed and recorded daily. Diseases and disorders were diagnosed based on the disease history, clinical signs, characteristics necropsy lesions, morbidity and mortality rates, and laboratory investigations including bacteriological and parasitological examinations. The morbidity and mortality of chickens caused by different diseases and disorders were statistically analyzed on the basis of farms, strains of birds, age and seasons. An overall 32.38% (n = 1198) morbidity and 21.30% (n = 788) mortality was recorded among 3700 chickens. Etiological analysis showed that the highest mortality caused by bacterial diseases (7.08%), followed by viral diseases (5.81%), fungal diseases (2.18%), mycoplasmosis (1.89%), parasitic diseases (1.83%) and nutritional and other disorders (2.48%). Specific diseases and disorders caused mortality in chickens included Salmonellosis (3.14%), Colibacillosis (2.51%), Fowl cholera (0.46%), Infectious coryza (0.41%), Necrotic enteritis (0.59%), Infectious bursal disease (2.19%), Newcastle disease (1.76%), Avian leukosis (0.73%), Fowl pox ( 0.51%), Marek’s disease (0.62%), Aspergillosis (1.54%), Aflatoxicosis (0.65%), Mycoplasmosis ( 1.89%), Ascaridiasis (0.22%), Tapeworm infection (0.16%), Coccidiosis (1.32%), Ectoparasitosis (0.14%), Nutritional deficiency (0.68%), Ascites, Hydropericardium hepatitis syndrome (0.49%), Cannibalism (0.27%), Egg peritonitis (0.22%), Egg bound disorder (0.43%) and Heat stroke and cold (0.41%). Diseases caused highest mortality during laying period (8.43%), followed by growing (6.32%), pullet stage (4.65%) and brooding (3.78%) ages. Both the morbidity and mortality rates in ISA-Brown strain (62.60% and 37.20%) were found significantly (p < 0.01) higher in comparison to Hy-Line (30.17% and 20.14%) strain of chickens. Seasonal influences on mortality in layer type chickens showed significantly (p < 0.01) highest mortality during summer (8.57%), followed by winter (6.51%) and rainy (6.22%) months. It may be concluded that the infectious diseases even with vaccination associated with high morbidity and mortality in commercial egg type chickens in Bangladesh.DOI = http://dx.doi.org/10.3329/bjvm.v9i1.11204 Bangl. J. Vet. Med. (2011). 9(1): 01-16

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