خيارات البحث
النتائج 301 - 310 من 766
Evaluation of the correlation between gross lung score and microscopic diagnosis for swine pneumonia in Korean slaughterhouses
2017
Lee, H.S., Seoul National University, Seoul, Republic of Korea | Kim, M.C., Seoul National University, Seoul, Republic of Korea | Kim, N.Y., Seoul National University, Seoul, Republic of Korea | Hwang, S.H., Seoul National University, Seoul, Republic of Korea | Ji, S., Seoul National University, Seoul, Republic of Korea | Park, Y.K., Seoul National University, Seoul, Republic of Korea | Park, Y.H., Seoul National University, Seoul, Republic of Korea | Kim, Y., Seoul National University, Seoul, Republic of Korea
To reduce swine production costs, a slaughter check system has been developed in countries with an advanced swine industry. Evaluation of lung lesions in carcasses is a critical part of the slaughter check system. This study was performed to collect background information for use in developing a slaughter check system in Korea. Lung tissues and their gross images were collected from slaughterhouses in Gyeonggi-do, Korea. Scoring of the gross lung lesions was performed on the lung images. Histopathologic examination was conducted to classify the pulmonary lesions as bronchopneumonia or interstitial pneumonia. Scores of the gross lung lesions were significantly different between bronchopneumonia and interstitial pneumonia groups (p less than 0.001). A 90% confidence interval of gross lung lesion scores was established for the bronchopneumonia group, and the lesion scoring had a sensitivity of 100% and specificity of 77.3%. The gross lung lesion scoring test was subjected to a diagnostic distinction evaluation by examining the receiver operating characteristic curve and was appraised as having good discrimination for bronchopneumonia. Establishment of a gross lung lesion scoring test for the diagnosis of bronchopneumonia could be valuable as a screening test of macroscopic bronchopneumonia in swine slaughter check system.
اظهر المزيد [+] اقل [-]Conservation of matrix protein genes in rabies viruses circulating in South Korea since 1999
2017
Lee, Y.A., Food and Rural Affair, Gimcheon, Republic of Korea | Kim, H.H., Food and Rural Affair, Gimcheon, Republic of Korea | Yang, D.K., Food and Rural Affair, Gimcheon, Republic of Korea | Cho, I.S., Food and Rural Affair, Gimcheon, Republic of Korea
Rabies virus (RABV) causes a neurological disease in warm-blooded animals that is nearly always fatal. In this study, we analyzed the matrix (M) genes in 10 Korean street RABV strains isolated from two Provinces during 2011-2013. The M genes in these 10 Korean strains were highly conserved during 1999-2013. Phylogenetic analysis revealed they were closely related to the M genes of RABVs isolated in northeastern China. Specific amino acid substitutions were identified in the KRVB1206, KRVF1301, and BV9901PJ strains. However, functional domains, including those involved in virus production and pathogenicity, were conserved in all 10 strains.
اظهر المزيد [+] اقل [-]Amyloidosis in a Whooper swan (Cygnus cygnus)
2017
Woo, S.H., Seoul National University, Seoul, Republic of Korea | Kim, Y.A., Samsung Construction and Trading, Yongin, Republic of Korea | Kwon, S.W., Samsung Construction and Trading, Yongin, Republic of Korea | Kim, Y.B., Samsung Construction and Trading, Yongin, Republic of Korea | Youn, S.H., Samsung Construction and Trading, Yongin, Republic of Korea | Shin, K.Y., Samsung Construction and Trading, Yongin, Republic of Korea | Jung, E., Samsung Construction and Trading, Yongin, Republic of Korea | Go, D.M., Seoul National University, Seoul, Republic of Korea | Kim, D.Y., Seoul National University, Seoul, Republic of Korea
Two Whooper swan (Cygnus cygnus) died after suffering from pododermatitis, lethargy, and ataxia; necropsy was performed. Grossly, the liver was swollen and firm. The kidney and spleen were also enlarged and a pale tan color. On histopathologic examination with Congo red staining, amyloidosis was noted in liver, spleen, and kidney. In addition, marked osseous metaplasia was present in the liver. Based on these results, systemic amyloidosis involving liver, spleen, and kidney with osseous metaplasia in the liver was diagnosed. Study results indicate that an inflammatory reaction associated with pododermatitis had a role in the amyloidosis in this particular case.
اظهر المزيد [+] اقل [-]Prevalence and renal pathology of pathogenic Leptospira spp. in wildlife in Abeokuta, Ogun State, Nigeria النص الكامل
2017
Ajayi, Olusola L.(Federal University of Agriculture Department of Veterinary Pathology) | Antia, Richard E.(University of Ibadan Department of Veterinary Pathology) | Ojo, Olufemi E.(Federal University of Agriculture Department of Veterinary Microbiology and Parasitology) | Awoyomi, Olajoju J.(Federal University of Agriculture Department of Veterinary Public health and Reproduction) | Oyinlola, Latifa A.(Federal University of Agriculture Department of Food Science and Technology) | Ojebiyi, Oluwabusola G.(Federal University of Agriculture Department of Veterinary Pathology)
There is paucity of information on the prevalence of leptospirosis in wildlife in Nigeria. This study investigated the prevalence and renal pathology of leptospirosis in wild animals in Southwest Nigeria. One hundred and five kidney samples were examined from 10 different wildlife species (antelope) greater cane rat (GCR), hare, African giant rat (AGR), tree hyrax, civet cat, monitor lizard, python, bushbuck and partridge) using a combination of Ellinghausen McCullough Johnson Harris (EMJH) medium, microscopic agglutination test (MAT), Warthin-Starry silver stain (WSss) and immunohistochemistry. Chi-square test was used with confidence level set at 0.05 to ascertain associations between positive cases and sex and species. Eighty-two (78.1%) samples were culturally positive, while 67.7% (63/93), 57.0% (16/28) and 66.7% (8/12) were WSss, MAT and immunohistochemically positive, respectively. Interstitial nephritis (41.0%) and tubular nephrosis (81.0%) were the most prominent histopathological changes. Pathogenic Leptospira organisms were highest in GCR (32.1%) and antelope (14.3%). Serovars hardjo (11.54%), bratislava (3.9%), canicola (3.9%), icterohaemorrhagiae (15.4%), pomona (7.14%) gripptotyphosa (19.2%) and undetermined isolates were also detected in other animals. The result showed high prevalence of Leptospira infection in the wild and the possibility of domestic animals and humans contracting the disease. This study is the first documentation of evidence of pathogenic Leptospira species in wildlife in Nigeria.
اظهر المزيد [+] اقل [-]Epidemiological studies based on multi-locus sequence typing genotype of methicillin susceptible Staphylococcus aureus isolated from camel's milk النص الكامل
2017
Ali, Alsagher O.(South Valley University Animal Medicine Department Division of infectious Diseases) | Mahmoud, Hassan Y.A.H.(South Valley University Animal Medicine Department Division of infectious Diseases)
One hundred milk samples were collected from camel's milk for the isolation of Staphylococcus aureus. Thirty-one isolates were S. aureus, 45 were other forms of staphylococci and 24 represented other bacteria. Five isolates from S. aureus were methicillin resistant S. aureus (MRSA) and 26 samples were methicillin susceptible S. aureus (MSSA). The whole genome sequence of S. aureus was annotated and visualised by rapid annotation using subsystem technology (RAST) which is a fully-automated service for annotating complete or nearly complete bacterial genomes. Four isolates from MSSA strains were subjected to multi-locus sequence typing (MLST). Three multi-locus sequences types or sequence types (MLST/ST) were found, namely ST15, ST1153 and ST130. The phylogenetic analysis of the concatenated sequences of the seven genes forming the MLST profile of S. aureus classification revealed a high degree of similarity and close relationship between the ST15 and ST1153 while the third ST (ST130) was located in a different cluster.
اظهر المزيد [+] اقل [-]A retrospective study of anthrax on the Ghaap Plateau, Northern Cape province of South Africa, with special reference to the 2007-2008 outbreaks النص الكامل
2017
Hassim, Ayesha(University of Pretoria Department of Veterinary Tropical Diseases) | Dekker, Edgar H.(South Africa Department of Agriculture, Forestry and Fisheries) | Byaruhanga, Charles(University of Pretoria Department of Veterinary Tropical Diseases) | Reardon, Tommy(South Africa Department of Agriculture, Forestry and Fisheries) | van Heerden, Henriette(University of Pretoria Department of Veterinary Tropical Diseases)
Anthrax is a zoonotic disease caused by the gram-positive, endospore-forming and soil-borne bacterium Bacillus anthracis. When in spore form, the organism can survive in dormancy in the environment for decades. It is a controlled disease of livestock and wild ungulates in South Africa. In South Africa, the two enzootic regions are the Kruger National Park and the Ghaap Plateau in the Northern Cape province. Farms on the Plateau span thousands of hectares comprising of wildlife - livestock mixed use farming. In 2007-2008, anthrax outbreaks in the province led to government officials intervening to aid farmers with control measures aimed at preventing further losses. Because of the ability of the organism to persist in the environment for prolonged periods, an environmental risk or isolation survey was carried out in 2012 to determine the efficacy of control measures employed during the 2007-2008, anthrax outbreaks. No B. anthracis could be isolated from the old carcass sites, even when bone fragments from the carcasses were still clearly evident. This is an indication that the control measures and protocols were apparently successful in stemming the continuity of spore deposits at previously positive carcass sites.
اظهر المزيد [+] اقل [-]OVARIAN AND UTERINE WEIGHT CHANGES IN ASSOCIATION WITH ESTROUS PHASES OF CYCLIC FEMALE WISTAR RATS TREATED WITH ANTI-SERA AGAINST BOVINE FOLLICULAR FLUID (STEROID-FREE) النص الكامل
2017
Salim Hussein Jari
This is an investigative study to explore the changes in the duration of different estrus cycle stages of cyclic female Wistar rats treated with anti-sera against bovine follicular fluid-steroid-free (ANBFF-SF), and to examine the changes of ovarian and uterine weight in association with these different stages of the cycle. The current study recruited 160 cyclic rat females, which were assigned equally into two groups. At proestrus phase, the control group received 100μl/female normal saline intraperitoneally, and the treatment group received 100µl/female ANBFF-SF. The duration of the four estrous phases were determined for two consecutive cycles. For vaginal smears, scarification of 20 females/phase/group was conducted, and ovaries and uteri were removed and weighted. The findings reported potential elongation of proestrus and diestrus durations and potential shortening of diestrus duration in treatment groups compared with control, whereas metestrus and total duration showed insignificant changes. The mean weight of both ovaries and uteri weight increased significantly at estrus phase in treatment group compared with control, whereas other phases showed insignificant changes between groups. In conclusion, SFBFF-AS administration has a potent role in enhancing sexual performance of cyclic female Wistar rats.
اظهر المزيد [+] اقل [-]WANDERING THYROID FOLLICLES WITHIN THE RENAL TISSUE OF CARP FISH "Cyprinus Carpio". النص الكامل
2017
Amer M. Hussin
Twenty healthy adult Carp fish were collected from Dijlah river in Iraq in Summer and winter times of the year (Ten for each ). The fish were sacrificed and fixed in 10% neutral buffered formalin solution. Routine histological preparations were carried out. Hematoxylin - Eosin stain was used. The finding of the current study showed that clear connective tissue capsule was not observed. Instead, wide loose connective tissue was surrounded the follicles. The thyroid follicles were distributed individually or in groups in the kidney and sub pharyngeal region( around the ventral aorta). The thyroid tissue was represented by thyroid follicles of different sizes and shapes. In Carp fish, the building up and organization of the follicular cells of thyroid follicles were simple and poorly organized. There was a close relationship between the morphological state of thyroid follicles and the season( temperature). The results of the present study also demonstrated that the spread of thyroid follicles in summer was more than in winter where the follicles appeared as aggregated at the periphery of renal tissue and also the results of this study showed that large and small follicles were combined. The study also registered that, during winter, the large follicles were mostly formed by the aggregation of smaller ones and that according to the physiological status of the thyroid tissue. The study concluded firstly that these follicles had the ability to wandered within the renal tissue. Moreover, the study concluded that the thyroid follicle was dynamic structure, and their sizes depending on the amount of colloid present within .
اظهر المزيد [+] اقل [-]HISTOLOGICAL STUDY OF THYROID GLAND IN CASE OF EXPERIMENTALLY INDUCED HYPOTHYROIDISM BY CARBIMAZOLE IN DOMESTIC FEMALE RABBITS (Lepus cuniculus domastica) النص الكامل
2017
Abdul Jabar Rasmi | Fawzi S. Mehson | Shireen J. khaleel
The present study aimed to investigate the histological ,histochemical changes of thyroid gland in case of induced hypothyroidism by carbimazole in domestic female rabbits . Histological results revealed many histpathological changes compared with the control group there are hyperatrophy of follicular epithelium , hemorrhage ,edema and damage in the epithelium lining of the follicles. Histochemical results revealed alterations in normal distribution of glycoprotein inside follicles of thyroid gland in hypothyrodic groups.
اظهر المزيد [+] اقل [-]ISOLATION, IDENTIFICATION OF SOME FUGAL ISOLATES AND TESTING THEIR ABILITY FOR LIPOXYGENASE PRODUCTION النص الكامل
2017
Amal K. G. AL-Asady | Alaa G.E. AL-Hashimi | Nora T.Y. AL-Temime
Eighty three local isolates of fungi were isolated from different resources (Peanuts , maize, rice, wheat, bread , domestic cheese of sheep, Milk local Cream, Iranian cream, Roquefort cheese and soil). These isolates were purified and identified, it include 14 isolates of Aspergillus flavus, 13 Aspergillus niger,8 Aspergillus terreus,3Aspergillus parasaticus,3Alternaria spp.,15Penicilliumspp.,7Fusarium spp.,5 Trichoderma spp., 11 Rhizopus spp. and 7Mucor spp. The ability of isolates for producing aflatoxin were tested, the toxic isolates(Aspergillus flavus,Aspergillus terreus ,and Aspergillus parasaticus) were removed.Aspergillus niger which was isolated from maize was choosing as the best lipoxygenase producer after Primary and secondary screening. The growth of the selected isolate colonies had the largest proportion than the Colonies of Penicillium sp. and Trichoderma sp..all so the same isolate had high enzymatic activity 801.4units/ml, while Penicillium sp. and Trichoderma sp. had (559.2 and 120) units/ml respectively.
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