Occurrence of Arcobacter in Iranian poultry and slaughterhouse samples implicates contamination by processing equipment and procedures     

R. Khoshbakht  M. Tabatabaei  H. Shirzad Aski  S. Seifi 《British poultry science》2014,55(6):732-736

1. The occurrence of Arcobacter spp. and three pathogenic species of Arcobacter from Iranian poultry carcasses was investigated at different steps of broiler processing to determine critical control points for reducing carcass contamination.

2. Samples were collected from (a) cloaca immediately before processing, (b) different points during processing and (c) at different stations in a processing plant of a slaughterhouse in southern Iran.

3. After enrichment steps in Arcobacter selective broth, DNA of the samples was extracted and three significant pathogen species of Arcobacter were identified based on polymerase chain reaction (PCR) detection of 16S rRNA and specific species PCR.

4. Out of a total of 540 samples, 244 (45%) were positive for Arcobacter spp. Arcobacter butzleri was more frequently detected (73% ± 13.9%) than A. cryaeophilus (9% ± 13.9%) and A. skirrowii (4.1%). In addition, co-colonisation (A. butzleri and A. cryaerophilus) occurred in 13.9% of the positive samples.

5. The results indicate a high prevalence of Arcobacter in the investigated slaughterhouse and broiler carcasses and that Arcobacter is not a normal flora of the broilers. Evidence for the presence of Arcobacter in the environment and water of processing plants suggests that these are sources of contamination of poultry carcasses. In addition, contamination of the poultry carcasses can spread between poultry meats in different parts and processes of the slaughterhouse (pre-scalding to after evisceration).  相似文献   

Understanding genetic diversity in blackgram [Vigna mungo (L.) Hepper] collections of Indian National Genebank     

Gayacharan  Tripathi  Kuldeep  Aski  Muraleedhar S.  Singh  Neeta  Kumar  Ashok  Lal  Hanuman 《Genetic Resources and Crop Evolution》2022,69(3):1229-1245

Genetic Resources and Crop Evolution - Blackgram [Vigna mungo (L.) Hepper] is a protein rich pulse crop of Indian origin. The crop is cultivated in diverse range of agro-ecological regions,...  相似文献   

Identification of mungbean lines with tolerance or resistance to yellow mosaic in fields in India where different begomovirus species and different <Emphasis Type="Italic">Bemisia tabaci</Emphasis> cryptic species predominate     

R. M. Nair  M. Götz  S. Winter  R. R. Giri  V. N. Boddepalli  A. Sirari  T. S. Bains  G. K. Taggar  H. K. Dikshit  M. Aski  M. Boopathi  D. Swain  A. Rathore  V. Anil Kumar  E. C. Lii  L. Kenyon 《European journal of plant pathology / European Foundation for Plant Pathology》2017,147(2):349-364

The segmentation of symptoms during image analysis of diseased plant leaves is an essential process for detection and classification of diseases. However, there are challenges involved in the task, many of them related to the variability of image and host/symptom characteristics and conditions. As a result of those challenges, the methods proposed in the literature so far focus on a specific problem and are usually bounded by tight constraints regarding image capture conditions. This research explores a new automatic method for segmenting disease symptoms on plant leaves that was designed to be applicable in a wide range of situations. The proposed technique employs only color channel manipulations and Boolean operations applied on binary masks, thus being simpler and more robust compared to many previously described automatic methods. Its effectiveness is demonstrated by tests performed over a large database containing images of 77 different diseases of 11 plant species. A comparison with manual segmentation is also presented, further reinforcing the advantages of the proposed approach.  相似文献   

Molecular characterization and phylogenetic analysis of the causative agent of hemoplasma infection in small Indian Mongoose (Herpestes Javanicus)     

Hassan Sharifiyazdi  Saeed Nazifi  Hesamaddin Shirzad Aski  Hossein Shayegh 《Comparative immunology, microbiology and infectious diseases》2014

Hemoplasmas are the trivial name for a group of erythrocyte-parasitizing bacteria of the genus Mycoplasma. This study is the first report of hemoplasma infection in Small Indian Mongoose (Herpestes Javanicus) based on molecular analysis of 16S rDNA. Whole blood samples were collected by sterile methods, from 14 live captured mongooses, in the south of Iran.  相似文献