Serologic prevalence of Ornithobacterium rhinotracheale infections in broilers and broiler breeder chickens in Kermanshah Province, west of Iran

Rahimi, Masoud

doi:10.1007/s00580-012-1634-z

Cited by 4 publications

(9 citation statements)

References 20 publications

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“…In Germany, 79% of tested broiler flocks were found to be O. rhinotracheale positive (Hafez and Sting 1996). Result of present work is lower than those findings of Rahimi (2014) and Hafez and Sting (1996).…”

Section: Discussioncontrasting

confidence: 83%

“…Hafez and Sting (1996) announced that O. rhinotracheale specific antibodies were detected in 26% of broiler serum samples in Germany. Also, antibodies against O. rhinotracheale were detected in 52% of the tested sera of layers by Heeder et al (2001) Allymehr (2006) and Rahimi (2014), respectively. However, in Thailand, 19.6% of tested broiler serum samples were found positive for O. rhinotracheale (Chansiripornchai et al 2007).…”

Section: Discussionmentioning

confidence: 97%

“…Rahimi (2014) reported that 18 (75%) of 24 examined broiler flock were positive for O. rhinotracheale infection. In Germany, 79% of tested broiler flocks were found to be O. rhinotracheale positive (Hafez and Sting 1996).…”

Section: Discussionmentioning

confidence: 99%

“…rhinotracheale infections have been reported from Belgium, Iran, Germany, United States, South Africa, Netherlands, France, Israel, Hungary, Japan, United Kingdom and Turkey (Charlton et al 1993, Hinz et al 1994, Van Beek 1994, Dudouyt et al 1995, Travers 1996, Hafez 1998, Sakai et al 2000, Banani et al 2002, Turan and Ak 2002, Allymehr 2006, Rahimi and Banani 2007. In Turkey, presence of O. rhinotracheale infections in broiler, layer and turkey flocks has been announced over the last decade by some researchers (Erganiş et al 2002, Turan and Ak 2002, Özbey et al 2004, Türkyılmaz 2005, Türkyılmaz and Kaya 2005, Erganiş et al 2013.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Serologic prevalence of Ornithobacterium rhinotracheale infection in commercial layers

Aras¹,

Sayın²,

Sanİoglu³

2016

EurasianJVetSci

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Section: Discussioncontrasting

confidence: 83%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Serologic prevalence of Ornithobacterium rhinotracheale infection in commercial layers

Aras¹,

Sayın²,

Sanİoglu³

2016

EurasianJVetSci

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“…ORT is a bacterium causing respiratory tract infection, has led to significant troubles in the intensive poultry production in Egypt (Ellakany et al, 2018). This study was conducted to isolate and identify ORT in broiler chickens, it was isolated in our study from different organs as lungs, air sacs and tracheas as reported by other authors (EI-Gohary and Awaad 1998, Amal 2002, Rahimi and Banani 2007and Mayahi et al, 2016.…”

Section: Discussionmentioning

confidence: 84%

Isolation and Identification of Ornithobacteriosis From Broiler Chickens in New Valley and Assiut Governorates

Hafez

Khames

Ahmed

et al. 2021

Assiut Veterinary Medical Journal

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Respiratory infections are the most dangerous diseases facing poultry industry. Ornithobacteriosis is a respiratory disease in chicken broiler farms, it causes severe economic losses (high condemnation rate at slaughter, high treatment costs). Scientific research papers should be focused on the causative agent in order to make a plan for the ideal steps for its isolation and identification, in addition to prevention and control of this infection. The present work was conducted to isolate and identify Ornithobacterium rhinotracheale (ORT) in chicken broilers. A total of 195 samples (trachea, lungs and air sacs) were collected from dead and sacrificed broiler chickens aged (20 -42 days old) from different broiler chickens farms in Assiut and New Valley Governorates for possible recovery of ORT. Samples were cultured on blood agar plates under 7.5 -10 % CO2 tension at 37ºC for 48 hours. Bacteriological examination used for isolation and identification of the ORT bacteria (cellular and colonial morphology, biochemical reactions, API 20 NE and growth on MacConkey's agar) showed 32 suspected isolates at percentage of 16.4%. Results of isolation by conventional method were confirmed by molecular identification using Polymerase Chain reaction technique (PCR); which revealed the positive detection of only 5 strains of ORT and produced the predicated 625 bp amplification product. Serotyping of the isolates by using agar gel precipitation test proved that all isolates belonged to serotype A. Challenge of broilers aged 14 days old with ORT strain alone or combined with live ND vaccine by spraying method caused mild respiratory manifestations with tracheitis, pneumonia and mild airsaculitis. While Infection of chicks with ORT via spray combined with prior administration of ND vaccine (stress factor) caused a moderate respiratory signs and more severe lesions. From the results obtained in this work, we can conclude that: The prevalence of ORT infection in broiler chickens in Assiut and New Valley governorates was 2.56% from living and scarified birds. The current investigation revealed that the isolates of ORT bacteria belonged to serotype A. Post mortem lesions especially yogurt like exudate in the abdominal air sac considered very pathognomonic in the tentative diagnosis of ORT infection. While PCR technique was proved to be more sensitive and specific for detection of ORT pathogen.

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Identification of Fowl Adenovirus as a causative agent of inclusion body hepatitis (IBH) in commercial broilers

Abdularahamn,

Saeed,

Othman

et al. 2024

Preprint

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Inclusion body hepatitis is a viral disease caused by Adenovirus group I, and it is worldwide in distribution. The virus is endemic in Sulaymaniyah city, Kurdistan Region of Iraq, and infections occurred in forty-six broiler farms from April 2013 to May 2020. Infected bird’s ages ranged between two days and four weeks. Clinically, birds showed lethargy, huddling with ruffled feathers, inappetence, and yellow, mucoid droppings. Gross lesions included enlarged mottled liver, pale icteric skin, swollen pale kidney, and hemorrhage on the skeletal muscle. Histopathological examinations revealed large intranuclear inclusion bodies in hepatocytes, degeneration and congestion of liver sinusoids, and degeneration of renal tubules, spermatozoa, spermatid, Sertoli cells, and Leydig cells in the testicle. There were intertubular hemorrhages and large vacuoles. The seminiferous tubular lumens were dilated, contained necrotic debris, and were devoid of spermatozoa in the interstitial tissue. Lesions in the testicle are reported for the first time in the present study. RT-PCR was used to detect the virus by amplification of partial 1300 bp hexon genes. The amplified fragments were confirmed by sequencing. Our results concluded that two different genotypes circulate in Kurdistan, and the nucleotide sequence of Kurdistan fowl adenovirus (FAdV) isolates show only 81% homology together. The FAdV/Kurdistan/2013 and FAdV/Kurdistan/2020 belonged to FAdV-E close to USA isolates. On the other hand, the FAdV/Kurdistan/2015 belonged to FAdV-D closer to the Chinese FAdV isolate.

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Serologic prevalence of Ornithobacterium rhinotracheale infections in broilers and broiler breeder chickens in Kermanshah Province, west of Iran

Cited by 4 publications

References 20 publications

Serologic prevalence of Ornithobacterium rhinotracheale infection in commercial layers

Serologic prevalence of Ornithobacterium rhinotracheale infection in commercial layers

Isolation and Identification of Ornithobacteriosis From Broiler Chickens in New Valley and Assiut Governorates

Identification of Fowl Adenovirus as a causative agent of inclusion body hepatitis (IBH) in commercial broilers

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