Journal of Equine Science最新文献_第6页

Circulating activin A during equine gestation and immunolocalization of its receptors system in utero-placental tissues and fetal gonads. 马妊娠期循环激活素A及其受体系统在子宫胎盘组织和胎儿性腺中的免疫定位。

Journal of Equine Science Pub Date : 2021-06-01 Epub Date: 2021-06-18 DOI: 10.1294/jes.32.39

Pramod Dhakal, Nobuo Tsunoda, Yasuo Nambo, Hiroyuki Taniyama, Kentaro Nagaoka, Gen Watanabe, Kazuyoshi Taya

{"title":"Circulating activin A during equine gestation and immunolocalization of its receptors system in utero-placental tissues and fetal gonads.","authors":"Pramod Dhakal, Nobuo Tsunoda, Yasuo Nambo, Hiroyuki Taniyama, Kentaro Nagaoka, Gen Watanabe, Kazuyoshi Taya","doi":"10.1294/jes.32.39","DOIUrl":"https://doi.org/10.1294/jes.32.39","url":null,"abstract":"Although equine gestation is unique from the standpoint of fetal gonadal enlargement and regression, the activator of this process is still unknown. The present study aimed to show a possible role of activin during equine gestation. In the first experiment, weekly plasma samples from six pregnant mares were used to measure activin A. In the second experiment, eight pregnant mares carrying female (gestational days 110, 140, 180, and 270) and male fetuses (gestational days 120, 180, 225, and 314) were used for immunohistochemistry of activin receptors (IA, IB, IIA, IIB), and their intracellular mediators (Smad2, Smad3, Smad4). Activin A levels in maternal circulation remained low until fourth weeks of gestation, thereafter, started to increase, and peaked first at 11 weeks of gestation. The second significant peak was observed on the day of parturition. Activin receptors type IA, IB, IIA, and IIB were immunostained in interstitial and germ cells of fetal ovaries and testes along with utero-placental tissues. Smad2, Smad3, and Smad4 were also immunolocalized in all these organs. These results demonstrated the activin-producing capacity of utero-placental tissues, and also evidenced the existence of activin receptors and functional signaling molecules in these organs. The first increment in circulating activin A in maternal circulation coinciding with the timing of initiation of fetal gonadal enlargement suggests that activin from the utero-placental tissues may have a stimulatory role in fetal gonad enlargement and utero-placental development in mares, whereas the second peak could be important to follicular development in the maternal ovary for foal heat.","PeriodicalId":35701,"journal":{"name":"Journal of Equine Science","volume":"32 2","pages":"39-48"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/8a/e1/jes-32-039.PMC8240525.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39148523","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: 1

Modified Z-bar shoe eliminates occasional frog bruising accompanying Z-bar shoeing for navicular syndrome management in underrun-heeled horses. 改良Z-bar鞋消除了偶尔的青蛙瘀伤伴随Z-bar鞋的舟骨综合征管理在后跟不足的马。

Journal of Equine Science Pub Date : 2021-06-01 Epub Date: 2021-06-18 DOI: 10.1294/jes.32.55

Metha Chanda, Chanikarn Puangthong, Watcharapol Pathomsakulwong, Tawanhathai Apichaimongkonkun, Juthamas Leklub

引用次数: 1

Nasal colonization and antibiotic resistance patterns of Staphylococcus species isolated from healthy horses in Tripoli, Libya. 从利比亚的黎波里健康马匹分离的葡萄球菌的鼻腔定植和抗生素耐药性模式

Journal of Equine Science Pub Date : 2021-06-01 Epub Date: 2021-06-18 DOI: 10.1294/jes.32.61

Aesha A Othman, Murad A Hiblu, Mohamed Salah Abbassi, Yousef M Abouzeed, Mohamed O Ahmed

引用次数: 5

Effect of advancing age on the reproductive performance of Japanese Thoroughbred broodmares. 年龄增长对日本纯种马繁殖性能的影响。

Journal of Equine Science Pub Date : 2021-06-01 Epub Date: 2021-06-18 DOI: 10.1294/jes.32.31

Jeffrey A Fawcett, Hideki Innan, Takeru Tsuchiya, Fumio Sato

引用次数: 0

Case report: The case of a 17 kg ovarian granulosa cell tumor in a Breton draft mare. 病例报告:一例17公斤卵巢颗粒细胞瘤在布列塔尼马草案。

Journal of Equine Science Pub Date : 2021-06-01 Epub Date: 2021-06-18 DOI: 10.1294/jes.32.67

Munkhtuul Tsogtgerel, Masaaki Tagami, Kenichi Watanabe, Harutaka Murase, Yuko Hirosawa, Yoshiyasu Kobayashi, Yasuo Nambo

{"title":"Case report: The case of a 17 kg ovarian granulosa cell tumor in a Breton draft mare.","authors":"Munkhtuul Tsogtgerel, Masaaki Tagami, Kenichi Watanabe, Harutaka Murase, Yuko Hirosawa, Yoshiyasu Kobayashi, Yasuo Nambo","doi":"10.1294/jes.32.67","DOIUrl":"https://doi.org/10.1294/jes.32.67","url":null,"abstract":"Granulosa cell tumor (GCT) is a benign tumor which affects the mare's ovaries. In this report, a case of unilateral GCT in an ovary, which weighed 17.04 kg, of a 9-year-old Breton draft mare is described. A transrectal ultrasonography exam revealed a unilateral multi-cystic enlarged ovary. Laparoscopic ovariectomy was difficult due to enlargement of blood vessels in the ovarian broad ligament. The mare was necropsied, and the pathological changes in the GCT-affected ovary and unaffected ovary were evaluated. The ovarian mass in the GCT-affected ovary had a cribriform pattern and was positive for anti-Müllerian hormone (AMH) and its receptor (AMHR2). The contralateral ovary showed no follicular development and was negative for AMH. AMHR2 was positively expressed in stromal cells. The AMH concentration in plasma was 4,210 ng/ml. This is the first report showing the presence of AMH (2,210 ng/ml) in ascites fluid, and it also shows that laparoscopic ovariectomy might not be suitable for larger ovaries affected by a GCT. Ultrasonographic, endocrine, and histopathological analyses were helpful for making a definitive diagnosis of GCT in this mare.","PeriodicalId":35701,"journal":{"name":"Journal of Equine Science","volume":"32 2","pages":"67-72"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/34/fc/jes-32-067.PMC8240524.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39148997","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: 1

Investigation of erythrocyte antigen frequencies in draft horse populations in Japan to assess blood donor suitability. 对日本驮马人群红细胞抗原频率的调查以评估献血者的适宜性。

Journal of Equine Science Pub Date : 2021-03-01 Epub Date: 2021-03-16 DOI: 10.1294/jes.32.17

Hironaga Kakoi, Mio Kikuchi, Taichiro Ishige, Shun-Ichi Nagata, Yuko Hirosawa, Shoko Tanaka, Takumi Kishinami

引用次数: 1

Equine rotavirus infection. 马轮状病毒感染。

Journal of Equine Science Pub Date : 2021-03-01 Epub Date: 2021-03-16 DOI: 10.1294/jes.32.1

Manabu Nemoto, Tomio Matsumura

{"title":"Equine rotavirus infection.","authors":"Manabu Nemoto, Tomio Matsumura","doi":"10.1294/jes.32.1","DOIUrl":"https://doi.org/10.1294/jes.32.1","url":null,"abstract":"This review briefly describes the virus classification, clinical signs, epidemiology, diagnosis, disinfection, and vaccines related equine group A rotavirus (RVA) infection. Equine RVA is one of the most important pathogens causing diarrhoea in foals. The main transmission route is faecal-oral, and the clinical signs are diarrhoea, fever, lethargy, and anorexia (decreased suckling). Some human RVA rapid antigen detection kits based on the principles of the immunochromatographic assay are useful for the diagnosis of equine RVA infection. The kits are used in daily clinical practice because of their rapidity and ease of handling. Equine RVA is a non-enveloped virus and is more resistant to disinfectants than enveloped viruses such as equine influenza virus and equine herpesvirus. Although amphoteric soaps and quaternary ammonium compounds are commonly used in veterinary hygiene, they are generally ineffective against equine RVA. Alcohol products, aldehydes, and chlorine- and iodine-based compounds are effective against equine RVA. Inactivated vaccines have been used for equine RVA infection in some countries. Pregnant mares are intramuscularly inoculated with a vaccine, and thus their colostrum has abundant antibodies against RVA at the time of birth. According to G and P classification defined in accordance with the VP7 and VP4 genes, respectively, the predominant equine RVAs circulating in horse populations globally are G3P[12] and G14P[12] equine RVAs, but the vaccines contain only the G3P[12] equine RVA strain. Ideally, a G14P[12] equine RVA should be added as a vaccine strain to obtain a better vaccine effect.","PeriodicalId":35701,"journal":{"name":"Journal of Equine Science","volume":"32 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/90/47/jes-32-001.PMC7984913.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25524130","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: 4

Effect of seasons and sex on the physical, hematological, and blood biochemical parameters of Noma horses. 季节和性别对诺玛马生理、血液学和血液生化指标的影响。

Journal of Equine Science Pub Date : 2021-03-01 Epub Date: 2021-03-16 DOI: 10.1294/jes.32.21

Tetsushi Ono, Yoichi Inoue, Keiichi Hisaeda, Yutaka Yamada, Akihisa Hata, Takako Shimokawa Miyama, Kenichi Shibano, Hitoshi Kitagawa, Emi Ohzawa, Eri Iwata

引用次数: 7

Comparison of the proteomes in sera between healthy Thoroughbreds and Thoroughbreds with respiratory disease associated with transport using mass spectrometry-based proteomics. 基于质谱的蛋白质组学比较健康纯种马和与转运相关的呼吸系统疾病纯种马血清中的蛋白质组学

Journal of Equine Science Pub Date : 2021-03-01 Epub Date: 2021-03-16 DOI: 10.1294/jes.32.11

Yohei Minamijima, Hidekazu Niwa, Eri Uchida, Kazuo Yamamoto

引用次数: 0

Body measurement of riding horses with a versatile tablet-type 3D scanning device. 用一种多功能的平板式3D扫描装置测量骑马的身体。

Journal of Equine Science Pub Date : 2021-01-01 Epub Date: 2021-09-06 DOI: 10.1294/jes.32.73

Akihiro Matsuura, Maiko Dan, Aiko Hirano, Yoshio Kiku, Suzuka Torii, Shigeru Morita

{"title":"Body measurement of riding horses with a versatile tablet-type 3D scanning device.","authors":"Akihiro Matsuura, Maiko Dan, Aiko Hirano, Yoshio Kiku, Suzuka Torii, Shigeru Morita","doi":"10.1294/jes.32.73","DOIUrl":"https://doi.org/10.1294/jes.32.73","url":null,"abstract":"The measurement of various body dimensions of horses plays a significant role in quality improvement, genetic breeding, health, and soundness. There has been significant advancement in the technology for acquiring stereoscopic images with a three-dimensional (3D) scanner. This study aimed to validate the accuracy of body measurements obtained from stereoscopic images taken with a 3D scanner. We manually took the following body measurements for 8 riding horses: height at the withers, height at the back, height at the croup, chest depth, width of the chest, width of the croup, width of the waist, girth circumference, cannon circumference, and body length. Using a versatile tablet-type 3D scanning device, we captured a 3D image of each horse. Relative errors varied from -1.37% to 6.25%. The correlation coefficient between manual and 3D measurements was significant for all body measurements (P<0.01) except for width of the waist and cannon circumference. The low accuracy of cannon circumference (r=0.248) was due to effect of hair. A simple regression analysis of all body measurements revealed a strong correlation (P<0.001, R2=0.9994, root-mean-square error [RMSE]=1.522). Notable advantages of this methodology include high accuracy, good operability, non-contact, high versatility, and low cost. Further studies are required for the establishment of an accurate measurement methodology that can scan the whole body in a shorter time.","PeriodicalId":35701,"journal":{"name":"Journal of Equine Science","volume":"32 3","pages":"73-80"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c1/9b/jes-32-073.PMC8437753.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39429114","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