Daijirou Hata, Junko Okada, T. Horikawa, M. Ogawa, Tsuyoshi Moritani, Koshi Kubota
{"title":"Estimation of Plasma Biochemical Values from Aqueous Humor of Sheep in Slaughter Inspection","authors":"Daijirou Hata, Junko Okada, T. Horikawa, M. Ogawa, Tsuyoshi Moritani, Koshi Kubota","doi":"10.12935/jvma.75.e186","DOIUrl":"https://doi.org/10.12935/jvma.75.e186","url":null,"abstract":"","PeriodicalId":17329,"journal":{"name":"Journal of the Japan Veterinary Medical Association","volume":"71 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83483989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sayaka Saito, K. Nagai, Takenobu Kuroiwa, N. Endo, Tomomi Tanaka, H. Kamomae
{"title":"Ovulation Synchronization, Changes in Ovaries, Blood Progesterone and Estradiol, and Estrous Signs with a 20-Day Progesterone Releasing Intra-Vaginal Device Treatment in Holstein Cows","authors":"Sayaka Saito, K. Nagai, Takenobu Kuroiwa, N. Endo, Tomomi Tanaka, H. Kamomae","doi":"10.12935/jvma.75.e165","DOIUrl":"https://doi.org/10.12935/jvma.75.e165","url":null,"abstract":"","PeriodicalId":17329,"journal":{"name":"Journal of the Japan Veterinary Medical Association","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85296238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Machiko Miyamoto, Kyoko Kawauchi, Shinichi Sakakibara, K. Miyane, H. Mekata
{"title":"Development of a Direct Polymerase Chain Reaction Method for Detecting Major Sources of Bovine Leukemia Virus Infection","authors":"Machiko Miyamoto, Kyoko Kawauchi, Shinichi Sakakibara, K. Miyane, H. Mekata","doi":"10.12935/jvma.75.e46","DOIUrl":"https://doi.org/10.12935/jvma.75.e46","url":null,"abstract":"","PeriodicalId":17329,"journal":{"name":"Journal of the Japan Veterinary Medical Association","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82428483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marina Tomiyama, Takashi Ichikawa, C. Muramatsu, T. Asai
{"title":"Isolation and Characterization of Escherichia albertii from Cattle and Swine in the Tokai Region, Japan","authors":"Marina Tomiyama, Takashi Ichikawa, C. Muramatsu, T. Asai","doi":"10.12935/jvma.75.e107","DOIUrl":"https://doi.org/10.12935/jvma.75.e107","url":null,"abstract":"","PeriodicalId":17329,"journal":{"name":"Journal of the Japan Veterinary Medical Association","volume":"223 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74903660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Noguchi, Takehito Suzuki, Hitomi Kosogabe, Y. Sasaki, H. Aoki, M. Nagai
We investigated the effect of both duration from vaccination to parturition in pregnant sows and colostral restriction during 6 h after birth for neonate piglets on the level of maternal antibodies for classical swine fever (CSF) vaccine in suckling piglets. In this study, piglets delivered from 3 pregnant sows vaccinated with CSF and 2 unvaccinated pregnant sows were used, and the serum CSF neutralizing antibody titeres in piglets with colostral restriction during the suckling period was significantly lower than those without the restriction. In the piglets with restricted colostrum intake, the group with a period from vaccination to parturition of 21 days had a significantly lower CSF antibody titer during the experimental period than the group of more than 161 days. The percentage of piglets testing positive for CSF antibodies was 0% at 14 and 21 days after birth in the group with short a short period (21 days) from vaccination to parturition and colostral restriction. Our results indicate that both of the timing of the initial vaccination of unimmunized pregnant sows and the restriction of colostrum have a clear effect on the level of maternal CSF antibodies in suckling piglets.
{"title":"Effect of the Timing of Vaccination in Pregnant Sows and Colostral Restriction for Neonatal Piglets on the Level of Transmission of Maternal Antibodies for Classical Swine Fever Vaccine to Suckling Piglets","authors":"M. Noguchi, Takehito Suzuki, Hitomi Kosogabe, Y. Sasaki, H. Aoki, M. Nagai","doi":"10.12935/jvma.75.e180","DOIUrl":"https://doi.org/10.12935/jvma.75.e180","url":null,"abstract":"We investigated the effect of both duration from vaccination to parturition in pregnant sows and colostral restriction during 6 h after birth for neonate piglets on the level of maternal antibodies for classical swine fever (CSF) vaccine in suckling piglets. In this study, piglets delivered from 3 pregnant sows vaccinated with CSF and 2 unvaccinated pregnant sows were used, and the serum CSF neutralizing antibody titeres in piglets with colostral restriction during the suckling period was significantly lower than those without the restriction. In the piglets with restricted colostrum intake, the group with a period from vaccination to parturition of 21 days had a significantly lower CSF antibody titer during the experimental period than the group of more than 161 days. The percentage of piglets testing positive for CSF antibodies was 0% at 14 and 21 days after birth in the group with short a short period (21 days) from vaccination to parturition and colostral restriction. Our results indicate that both of the timing of the initial vaccination of unimmunized pregnant sows and the restriction of colostrum have a clear effect on the level of maternal CSF antibodies in suckling piglets.","PeriodicalId":17329,"journal":{"name":"Journal of the Japan Veterinary Medical Association","volume":"301 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79710357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Minato Nakamura, Hisayuki Tomochi, Kiyohiko Andoh, A. Nishimori, Yuto Suda, Y. Matsuura, Y. Iwamaru
Bovine viral diarrhea virus (BVDV) is one of the high-risk agents for contamination in fetal bovine serum (FBS). In this study, we examined 41 FBS samples collected between 2017 and 2021 for BVDV contamination. Thirty-four of 41 samples (82.9%) were positive to pestivirus-specific RT-PCR, and 17 (41.5%) and 1 (2.4%) of 41 samples were seropositive using the neutralization test for BVDV1 and 2, respectively. Ten of the 41 samples that were RT-PCR-positive with a high ELISA titer were subjected to virus isolation; however, no infectious virus was detected. Our results showed that only 5 of the 41 FBS samples (12.2%) were both PCR-negative and BVDV-specific antibody-free. It is important to note that FBS potentially poses some risks associated with BVDV.
{"title":"Inspection of Commercially Available Fetal Bovine Sera Collected between 2017 and 2021 for the Contamination of Bovine Viral Diarrhea Virus","authors":"Minato Nakamura, Hisayuki Tomochi, Kiyohiko Andoh, A. Nishimori, Yuto Suda, Y. Matsuura, Y. Iwamaru","doi":"10.12935/jvma.75.e139","DOIUrl":"https://doi.org/10.12935/jvma.75.e139","url":null,"abstract":"Bovine viral diarrhea virus (BVDV) is one of the high-risk agents for contamination in fetal bovine serum (FBS). In this study, we examined 41 FBS samples collected between 2017 and 2021 for BVDV contamination. Thirty-four of 41 samples (82.9%) were positive to pestivirus-specific RT-PCR, and 17 (41.5%) and 1 (2.4%) of 41 samples were seropositive using the neutralization test for BVDV1 and 2, respectively. Ten of the 41 samples that were RT-PCR-positive with a high ELISA titer were subjected to virus isolation; however, no infectious virus was detected. Our results showed that only 5 of the 41 FBS samples (12.2%) were both PCR-negative and BVDV-specific antibody-free. It is important to note that FBS potentially poses some risks associated with BVDV.","PeriodicalId":17329,"journal":{"name":"Journal of the Japan Veterinary Medical Association","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80624645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Makita, N. Isoda, S. Ito, F. Fukumoto, Mitsugu Ito, Keisuke Kuwata
In Japan, classical swine fever re-emerged in September 2018, after an absence of 26 years, and spread among wild boar populations. This study was conducted to understand the transmissibility of classical swine fever virus in wild boar populations, limited by the impossibility of a correct case count because of the nature of wildlife. Wildlife PCR test results between September 2018 and February 2019 were collected from the homepages of Gifu, Aichi, and Mie Prefectures. In descriptive epidemiology, the geographical spread in the three prefectures, and temporal patterns of PCR test positivity in Gifu Prefecture were observed. Using the Susceptible ( S ) - Exposed ( E ) - Infectious ( I ) - Recovery ( R ) model, assuming the weekly test positivity fol-lows beta distribution, parameters were estimated in a Markov Chain Monte Carlo simulation, and the basic reproduction number ( R 0 ) was calculated. As a result, the mean infectious period was as long as 100 - 145 days, and R 0 was estimated to be 4.2 - 5.1. In this analysis, however, population dynamics considering births and deaths and population density were not considered. In the future, a more detailed study based on wild boar field data is necessary.
{"title":"Estimation of the Basic Reproduction Number of Classical Swine Fever in Wild Boar During the Early Phase of an Outbreak","authors":"K. Makita, N. Isoda, S. Ito, F. Fukumoto, Mitsugu Ito, Keisuke Kuwata","doi":"10.12935/jvma.74.819","DOIUrl":"https://doi.org/10.12935/jvma.74.819","url":null,"abstract":"In Japan, classical swine fever re-emerged in September 2018, after an absence of 26 years, and spread among wild boar populations. This study was conducted to understand the transmissibility of classical swine fever virus in wild boar populations, limited by the impossibility of a correct case count because of the nature of wildlife. Wildlife PCR test results between September 2018 and February 2019 were collected from the homepages of Gifu, Aichi, and Mie Prefectures. In descriptive epidemiology, the geographical spread in the three prefectures, and temporal patterns of PCR test positivity in Gifu Prefecture were observed. Using the Susceptible ( S ) - Exposed ( E ) - Infectious ( I ) - Recovery ( R ) model, assuming the weekly test positivity fol-lows beta distribution, parameters were estimated in a Markov Chain Monte Carlo simulation, and the basic reproduction number ( R 0 ) was calculated. As a result, the mean infectious period was as long as 100 - 145 days, and R 0 was estimated to be 4.2 - 5.1. In this analysis, however, population dynamics considering births and deaths and population density were not considered. In the future, a more detailed study based on wild boar field data is necessary.","PeriodicalId":17329,"journal":{"name":"Journal of the Japan Veterinary Medical Association","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73724293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluation of the Usefulness of Serum Feline Alpha 1-acid Glycoprotein Test for Diagnosis of Effusive Feline Infectious Peritonitis","authors":"T. Soma, Shohei Kudo, J. Terui","doi":"10.12935/jvma.74.799","DOIUrl":"https://doi.org/10.12935/jvma.74.799","url":null,"abstract":"","PeriodicalId":17329,"journal":{"name":"Journal of the Japan Veterinary Medical Association","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73705738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Keiichi Sato, Yuka Sato, Yuya Suzuki, I. Watanabe, Y. Yasuhira, K. Mihara, I. Kanemoto
{"title":"Differential Diagnosis and Outcome Involving Two Dogs Suspected to have Right Auricle Tumors: Constrictive Pericarditis and Hemangiosarcoma","authors":"Keiichi Sato, Yuka Sato, Yuya Suzuki, I. Watanabe, Y. Yasuhira, K. Mihara, I. Kanemoto","doi":"10.12935/jvma.74.805","DOIUrl":"https://doi.org/10.12935/jvma.74.805","url":null,"abstract":"","PeriodicalId":17329,"journal":{"name":"Journal of the Japan Veterinary Medical Association","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75566840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shiro Mizumoto, Kana Suzuki, Kai Okoshi, A. Ogawa, Rikiya Kuge, Hirotaka Morinushi, H. Nagaoka, K. Murakami
{"title":"Antimicrobial Resistance of Salmonella Isolated from the Contents of Chicken Cecum in Shizuoka Prefecture","authors":"Shiro Mizumoto, Kana Suzuki, Kai Okoshi, A. Ogawa, Rikiya Kuge, Hirotaka Morinushi, H. Nagaoka, K. Murakami","doi":"10.12935/jvma.74.743","DOIUrl":"https://doi.org/10.12935/jvma.74.743","url":null,"abstract":"","PeriodicalId":17329,"journal":{"name":"Journal of the Japan Veterinary Medical Association","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73298030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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