Journal of veterinary medicine最新文献_第5页

Prevalence of Calodium hepaticum and Cysticercus fasciolaris in Urban Rats and Their Histopathological Reaction in the Livers. 城市大鼠肝钙和筋膜囊尾蚴的流行及其肝脏组织病理学反应。

Journal of veterinary medicine Pub Date : 2014-01-01 Epub Date: 2014-11-05 DOI: 10.1155/2014/172829

Bharathalingam Sinniah, Muniandy Narasiman, Saequa Habib, Ong Gaik Bei

{"title":"Prevalence of Calodium hepaticum and Cysticercus fasciolaris in Urban Rats and Their Histopathological Reaction in the Livers.","authors":"Bharathalingam Sinniah, Muniandy Narasiman, Saequa Habib, Ong Gaik Bei","doi":"10.1155/2014/172829","DOIUrl":"https://doi.org/10.1155/2014/172829","url":null,"abstract":"Humans can get infected with several zoonotic diseases from being in close contact with rats. This study was aimed at determining the prevalence and histopathological changes caused by Calodium hepaticum and Cysticercus fasciolaris in infected livers of wild caught urban rats. Of the 98 urban rats (Rattus rattus diardii and Rattus norvegicus) autopsied, 64.3% were infected; 44.9% were infected with Caladium hepatica, 39.3% were infected with Cysticercus fasciolaris, and 20.4% were infected with both parasites. High infection rates suggest that urban rats are common reservoir for both parasites, which are potentially a threat to man. Calodium hepaticum infections were identified by the presence of ova or adults in the liver parenchyma. They appear as yellowish white nodules, measuring 1-7 mm in diameter or in streaks scattered widely over the serosal surface of the liver. Cysticercus fasciolaris infections are recognized morphologically by their shape (round or oval) and are creamy white in colour. Histological studies of Calodium hepaticum showed areas of granulomatous lesions with necrotic areas around the dead ova and adults. In almost all cases, the rats appeared robust, looked healthy, and showed no visible signs of hepatic failure despite the fact that more than 64.0% of their livers were infected by either one or both parasites. ","PeriodicalId":91135,"journal":{"name":"Journal of veterinary medicine","volume":"2014 ","pages":"172829"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2014/172829","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34084316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Comparative Evaluation of Midventral and Flank Laparotomy Approaches in Goat. 山羊中腹侧剖腹入路的比较评价。

Journal of veterinary medicine Pub Date : 2014-01-01 Epub Date: 2014-08-24 DOI: 10.1155/2014/920191

A A Abubakar, R A Andeshi, A S Yakubu, F M Lawal, U Adamu

{"title":"Comparative Evaluation of Midventral and Flank Laparotomy Approaches in Goat.","authors":"A A Abubakar, R A Andeshi, A S Yakubu, F M Lawal, U Adamu","doi":"10.1155/2014/920191","DOIUrl":"https://doi.org/10.1155/2014/920191","url":null,"abstract":"The aim of the study was to compare two laparotomy approaches (flank and midventral). Ten (n = 10) apparently healthy goats of different breeds and sex, average age of 12 ± 2.1 months, and average weight of 13.4 ± 2 kg were used for the investigation. The goats were randomly divided into flank and midventral groups, each group comprising five goats (n = 5). Standard aseptic laparotomy was performed under lumbosacral epidural anaesthesia with mild sedation. Postsurgical wound score showed significant difference (P < 0.05) in erythema at 18-24 hours and 10-14 days after surgery between the two approaches; significant difference of dehiscence between the two groups was also recorded at 10-14 days after surgery. Total white blood cells (WBC) and lymphocytes counts were significantly different (P < 0.05) at the first and second week after surgery. There was significant difference of platelets critical value and platelets dimension width at the first and second week after surgery. Significant difference of packed cells volume between the two approaches was also recorded one week after surgery. It was concluded that midventral laparotomy approach can be conveniently and safely performed under aseptic precautions without fear of intra- and postoperative clinical problems. ","PeriodicalId":91135,"journal":{"name":"Journal of veterinary medicine","volume":"2014 ","pages":"920191"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2014/920191","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34086604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Experimental Infection with Sporulated Oocysts of Eimeria maxima (Apicomplexa: Eimeriidae) in Broiler. 肉仔鸡最大艾美耳球虫(顶复合体:艾美耳球虫科)孢子卵囊感染试验。

Journal of veterinary medicine Pub Date : 2014-01-01 Epub Date: 2014-08-26 DOI: 10.1155/2014/283029

Luciana da S Brito, Elder N Pereira, Augusta A da Silva, Vinícius Bentivóglio Costa Silva, Fagner L da C Freitas

{"title":"Experimental Infection with Sporulated Oocysts of Eimeria maxima (Apicomplexa: Eimeriidae) in Broiler.","authors":"Luciana da S Brito, Elder N Pereira, Augusta A da Silva, Vinícius Bentivóglio Costa Silva, Fagner L da C Freitas","doi":"10.1155/2014/283029","DOIUrl":"https://doi.org/10.1155/2014/283029","url":null,"abstract":"Through this study we assessed the metabolic and pathological changes in broilers experimentally infected with oocysts of Eimeria maxima. To perform the experiment, we used 150 broiler strain cooB males, with ten days of age, were randomized according to weight and randomly assigned to two experimental groups: the control group was inoculated with 0.5 mL of distilled water; the infected group inoculated with 0.5 mL of solution containing 5 × 10(4) sporulated oocysts of Eimeria maxima. The live performance was evaluated on day 0 (day of inoculation), 5°, 10°, 15°, 25°, and 35° dpi, being slaughtered by cervical dislocation, fifteen birds/group. Although the sum in meat production was higher in the control group, the weight of the heart and gizzard of the experimental animals showed no significant difference, while the liver had difference on day 5°, 15°, and 35° dpi. The pathologic evaluation showed congested mucosa and presence of large amounts of mucus at 6 dpi. Therefore, it is concluded that the dose of 5 × 10(4) E. maxima inoculated in the experimental group was enough to cause harm to the animal organism. ","PeriodicalId":91135,"journal":{"name":"Journal of veterinary medicine","volume":"2014 ","pages":"283029"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2014/283029","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34152890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Subcutaneous Implants of Buprenorphine-Cholesterol-Triglyceride Powder in Mice. 丁丙诺啡-胆固醇-甘油三酯粉末小鼠皮下植入。

Journal of veterinary medicine Pub Date : 2014-01-01 Epub Date: 2014-11-27 DOI: 10.1155/2014/365673

L DeTolla, R Sanchez, E Khan, B Tyler, M Guarnieri

{"title":"Subcutaneous Implants of Buprenorphine-Cholesterol-Triglyceride Powder in Mice.","authors":"L DeTolla, R Sanchez, E Khan, B Tyler, M Guarnieri","doi":"10.1155/2014/365673","DOIUrl":"https://doi.org/10.1155/2014/365673","url":null,"abstract":"Subcutaneous drug implants are convenient systems for the long-term delivery of drugs in animals. Lipid carriers are logical tools because they generally allow for higher doses and low toxicity. The present study used an US Food and Drug Administration Target Animal Safety test system to evaluate the safety of a subcutaneous implant of a cholesterol-triglyceride-buprenorphine powder in 120 BALB/c mice. Mice were evaluated in 4- and 12-day trials with 1- and 5-fold doses of the intended 3 mg/kg dose of drug. One male mouse treated with three 3 mg/kg doses and surgery on days 0, 4, and 8 died on day 9. The cause of death was not determined. In the surviving 119 mice there was no evidence of skin reaction at the site of the implant. Compared to control animals treated with saline, weight measurements, clinical pathology, histopathology, and clinical observations were unremarkable. These results demonstrate that the lipid carrier is substantially safe. Cholesterol-triglyceride-drug powders may provide a valuable research tool for studies of analgesic and inflammatory drug implants in veterinary medicine.","PeriodicalId":91135,"journal":{"name":"Journal of veterinary medicine","volume":"2014 ","pages":"365673"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2014/365673","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34152892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Fertility in Gyr Cows (Bos indicus) with Fixed Time Artificial Insemination and Visual Estrus Detection Using a Classification Table. 固定时间人工授精和分类表视觉发情检测对母牛生育力的影响。

Journal of veterinary medicine Pub Date : 2014-01-01 Epub Date: 2014-08-26 DOI: 10.1155/2014/404363

Lilido Nelson Ramírez-Iglesia, Rafael María Roman Bravo, Adelina Díaz de Ramirez, Leandro J Torres

{"title":"Fertility in Gyr Cows (Bos indicus) with Fixed Time Artificial Insemination and Visual Estrus Detection Using a Classification Table.","authors":"Lilido Nelson Ramírez-Iglesia, Rafael María Roman Bravo, Adelina Díaz de Ramirez, Leandro J Torres","doi":"10.1155/2014/404363","DOIUrl":"https://doi.org/10.1155/2014/404363","url":null,"abstract":"The aim of this research was to compare two artificial insemination protocols (AIP): hormonal synchronization with fixed time artificial insemination (SC-FTAI) and the use of a table based on visual observation of estrus signs (VO) in order to identify cows in natural or spontaneous estrus being assigned to AI (NSE-IA). Two groups were formed: in the first group 109 cows were assigned to SC-FTAI, in which a commercial protocol is used; the second one included 108 randomly chosen cows, which were assigned to NSE-AI and in this group a modified table was used. Response variable was first service fertility rate (FSF), which was coded 1 for pregnant and 0 for empty. Predictor variables were AIP, postpartum anestrus, daily milk yield, body condition score at AI and calving number. Statistical analyses included association chi-square tests and logistic regression. Results showed an overall 41.94% FSF and a significant association was detected (P < 0.05) between FSF and daily milk yield; pregnancy rates were 42.20% and 41.67% for the SC-FTAI and NSE-IA groups, respectively (P > 0.05). The odds ratio for the effect of AIP was only 1.050, suggesting no differences in FSF between groups. The NSE-AI protocol can enhance both the technique of VO and reproductive efficiency. Further validation of the table is required.","PeriodicalId":91135,"journal":{"name":"Journal of veterinary medicine","volume":"2014 ","pages":"404363"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2014/404363","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34152894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Occurrence of Newcastle Disease and Infectious Bursal Disease Virus Antibodies in Double-Spurred Francolins in Nigeria. 尼日利亚双鞭毛虫新城疫和传染性法氏囊病病毒抗体的发生

Journal of veterinary medicine Pub Date : 2014-01-01 Epub Date: 2014-11-18 DOI: 10.1155/2014/106898

Daniel Oladimeji Oluwayelu, Adebowale Idris Adebiyi, Ibukunoluwa Olaniyan, Phyllis Ezewele, Oluwasanmi Aina

{"title":"Occurrence of Newcastle Disease and Infectious Bursal Disease Virus Antibodies in Double-Spurred Francolins in Nigeria.","authors":"Daniel Oladimeji Oluwayelu, Adebowale Idris Adebiyi, Ibukunoluwa Olaniyan, Phyllis Ezewele, Oluwasanmi Aina","doi":"10.1155/2014/106898","DOIUrl":"https://doi.org/10.1155/2014/106898","url":null,"abstract":"The double-spurred francolin Francolinus bicalcaratus has been identified as a good candidate for future domestication due to the universal acceptability of its meat and its adaptability to anthropogenically altered environments. Therefore, in investigating the diseases to which they are susceptible, serum samples from 56 francolins in a major live-bird market (LBM) in Ibadan, southwestern Nigeria, were screened for antibodies against Newcastle disease (ND) and infectious bursal disease (IBD) viruses. Haemagglutination inhibition (HI) test and enzyme-linked immunosorbent assay (ELISA) revealed 25.0% and 35.7% prevalence of ND virus (NDV) antibodies, respectively, while 5.4% and 57.1% prevalence of IBD virus (IBDV) antibodies was detected by agar gel precipitation test (AGPT) and ELISA, respectively. This first report on the occurrence of NDV and IBDV antibodies in apparently healthy, unvaccinated double-spurred francolins from a LBM suggests that they were subclinically infected with either field or vaccine viruses and could thus serve as possible reservoirs of these viruses to domestic poultry. Furthermore, if they are to be domesticated for intensive rearing, a vaccination plan including ND and IBD should be developed and implemented. ","PeriodicalId":91135,"journal":{"name":"Journal of veterinary medicine","volume":"2014 ","pages":"106898"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2014/106898","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34084314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Morphometric Identification, Gross and Histopathological Lesions of Eimeria Species in Japanese Quails (Coturnix coturnix japonica) in Zaria, Nigeria. 尼日利亚扎里亚地区日本鹌鹑艾美耳球虫的形态鉴定、肉眼和组织病理学病变。

Journal of veterinary medicine Pub Date : 2014-01-01 Epub Date: 2014-11-05 DOI: 10.1155/2014/451945

H A Umar, I A Lawal, O O Okubanjo, A M Wakawa

{"title":"Morphometric Identification, Gross and Histopathological Lesions of Eimeria Species in Japanese Quails (Coturnix coturnix japonica) in Zaria, Nigeria.","authors":"H A Umar, I A Lawal, O O Okubanjo, A M Wakawa","doi":"10.1155/2014/451945","DOIUrl":"https://doi.org/10.1155/2014/451945","url":null,"abstract":"The objective of the study was to identify the species, gross and histopathological lesions of Eimeria in Japanese quails in Zaria. A total of 400 fresh faecal samples were collected and 10 quail birds were purchased from a quail farm. The faecal samples were processed using simple floatation technique. Oocysts shape indices of sporulated oocysts were determined. The intestines were observed for gross lesions and segments were analyzed using Giemsa stain and Haematoxylin and Eosin stain and then observed microscopically for the developmental stages of the parasite. Four species of Eimeria were identified in the study. Eimeria bateri of shape index of 1.36 conformed to the guidelines used while the other three Eimeria species with shape indices of 1.48, 1.03, and 1.40 were not confirmed. The main gross lesion seen was nonhaemorrhagic ballooning of the caeca. Intestinal scrapping smear revealed a developmental stage of the parasite (merozoites) in the jejunum. Histopathology also revealed a developmental stage (schizont) of the parasite in the caecum and desquamation of the epithelial lining with areas of necrosis. Further study is required using molecular techniques to properly identify the unknown species of Eimeria that were detected in the study. ","PeriodicalId":91135,"journal":{"name":"Journal of veterinary medicine","volume":"2014 ","pages":"451945"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2014/451945","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34086109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Biochemical Effects of Xylazine, Propofol, and Ketamine in West African Dwarf Goats. 木嗪、异丙酚和氯胺酮对西非矮山羊的生化影响。

Journal of veterinary medicine Pub Date : 2014-01-01 Epub Date: 2014-09-11 DOI: 10.1155/2014/758581

Ukwueze Celestine Okwudili, Eze Athanasius Chinedu, Ona Jonas Anayo

{"title":"Biochemical Effects of Xylazine, Propofol, and Ketamine in West African Dwarf Goats.","authors":"Ukwueze Celestine Okwudili, Eze Athanasius Chinedu, Ona Jonas Anayo","doi":"10.1155/2014/758581","DOIUrl":"https://doi.org/10.1155/2014/758581","url":null,"abstract":"Anaesthesia was induced in West African Dwarf (WAD) goats using different combinations of propofol (P), xylazine (X), and ketamine (K), and the biochemical effect of the drugs determined. Twenty male (WAD) goats were randomly assigned to five treatment groups viz. Control (C) (2.5 mL IV normal saline); group K + X (5 mg/kg IV ketamine + 0.05 mg/kg IV xylazine), group P + X (5 mg/kg IV propofol + 0.05 mg/kg IV xylazine), group P + K (propofol 5 mg/kg IV + ketamine 5 mg/kg IV), and group P + K + X (propofol 2.5 mg/kg IV + ketamine 2.5 mg/kg IV + xylazine 0.05 mg/kg IV), respectively. There was increase (P < 0.05) in blood glucose in K + X, P + X and P + K + X. The serum cortisol level increased (P < 0.05) in all groups except in P + X. ALT value increased (P < 0.05) in K + X, P + K, and P + K + X. BUN increased (P < 0.05) in K + X but decreased (P < 0.05) in P + K + X. There was no significant variation (P > 0.05) in serum creatinine. These biochemical changes were transient. P + K + X would be the best drug combinations considering the biochemical parameter measured. However, data on blood glucose, ALT, BUN, and cortisol levels in an anaesthsized goat should be interpreted with caution in order to avoid erroneous interpretation in these animals. ","PeriodicalId":91135,"journal":{"name":"Journal of veterinary medicine","volume":"2014 ","pages":"758581"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2014/758581","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34086115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Acute Phase Response and Neutrophils : Lymphocyte Ratio in Response to Astaxanthin in Staphylococcal Mice Mastitis Model. 葡萄球菌性小鼠乳腺炎模型急性期反应和中性粒细胞:淋巴细胞比例对虾青素的反应。

Journal of veterinary medicine Pub Date : 2014-01-01 Epub Date: 2014-11-19 DOI: 10.1155/2014/147652

Tshering Dolma, Reena Mukherjee, B K Pati, U K De

{"title":"Acute Phase Response and Neutrophils : Lymphocyte Ratio in Response to Astaxanthin in Staphylococcal Mice Mastitis Model.","authors":"Tshering Dolma, Reena Mukherjee, B K Pati, U K De","doi":"10.1155/2014/147652","DOIUrl":"https://doi.org/10.1155/2014/147652","url":null,"abstract":"The purpose of the study was to determine the immunotherapeutic effect of astaxanthin (AX) on total clinical score (TCS), C-reactive protein (CRP), and neutrophil : lymphocyte ratio in mice mastitis model challenged with pathogenic Staphylococcus aureus. Twenty-four lactating mice were divided in 4 equal groups: group I mice served as normal healthy control, group II, positive control, were challenged with pathogenic S. aureus, group III mice were challenged and treated with AX, and group IV were treated with amoxicillin plus sulbactum. The TCS was higher in postchallenged mice; however it was significantly higher in group II untreated mice as compared to group III and group IV mice. The neutrophil was higher and lymphocyte count was lower in group II mice at 120 hrs post challenge (PC). The CRP was positive in all the challenged group at 24 hrs PC, but it remained positive till 120 hrs PC in group II. The parameters are related to enhancement of the mammary defense and reduction of inflammation. Hence AX may be used alone or as an adjunct therapy with antibiotic for amelioration of mastitis. Development of such therapy may be useful to reduce the antibiotic burden in management of intramammary infection. ","PeriodicalId":91135,"journal":{"name":"Journal of veterinary medicine","volume":"2014 ","pages":"147652"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2014/147652","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34084315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Disparities in Spatial Prevalence of Feline Retroviruses due to Data Aggregation: A Case of the Modifiable Areal Unit Problem. 数据聚集导致的猫逆转录病毒空间流行差异:一个可修改面积单位问题的案例。

Journal of veterinary medicine Pub Date : 2014-01-01 Epub Date: 2014-02-19 DOI: 10.1155/2014/424138

Bimal K Chhetri, Olaf Berke, David L Pearl, Dorothee Bienzle

{"title":"Disparities in Spatial Prevalence of Feline Retroviruses due to Data Aggregation: A Case of the Modifiable Areal Unit Problem.","authors":"Bimal K Chhetri, Olaf Berke, David L Pearl, Dorothee Bienzle","doi":"10.1155/2014/424138","DOIUrl":"https://doi.org/10.1155/2014/424138","url":null,"abstract":"The knowledge of the spatial distribution feline immunodeficiency virus and feline leukemia virus infections, which are untreatable, can inform on their risk factors and high-risk areas to enhance control. However, when spatial analysis involves aggregated spatial data, results may be influenced by the spatial scale of aggregation, an effect known as the modifiable areal unit problem (MAUP). In this study, area level risk factors for both infections in 28,914 cats tested with ELISA were investigated by multivariable spatial Poisson regression models along with MAUP effect on spatial clustering and cluster detection (for postal codes, counties, and states) by Moran's I test and spatial scan test, respectively. The study results indicate that the significance and magnitude of the association of risk factors with both infections varied with aggregation scale. Further more, Moran's I test only identified spatial clustering at postal code and county levels of aggregation. Similarly, the spatial scan test indicated that the number, size, and location of clusters varied over aggregation scales. In conclusion, the association between infection and area was influenced by the choice of spatial scale and indicates the importance of study design and data analysis with respect to specific research questions. ","PeriodicalId":91135,"journal":{"name":"Journal of veterinary medicine","volume":"2014 ","pages":"424138"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2014/424138","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34086108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2