Journal of Equine Science最新文献_第7页

The influence of the metacarpophalangeal joint angle on the transversal area and mean echogenicity of the superficial digital flexor tendon and suspensory ligament in gaited horses. 掌指关节角度对马指浅屈肌腱和悬韧带横截面积和平均回声的影响。

Journal of Equine Science Pub Date : 2021-12-01 Epub Date: 2021-12-28 DOI: 10.1294/jes.32.135

Jackson Schade, Anderson Fernando de Souza, Lorenzo Costa Vincensi, Joandes Henrique Fonteque

{"title":"The influence of the metacarpophalangeal joint angle on the transversal area and mean echogenicity of the superficial digital flexor tendon and suspensory ligament in gaited horses.","authors":"Jackson Schade, Anderson Fernando de Souza, Lorenzo Costa Vincensi, Joandes Henrique Fonteque","doi":"10.1294/jes.32.135","DOIUrl":"https://doi.org/10.1294/jes.32.135","url":null,"abstract":"The objective of this study was to assess the influence of the metacarpophalangeal (MCP) joint angle on the transversal area (TA) and mean echogenicity (ME) of the superficial digital flexor tendon (SDFT) and suspensory ligament (SL) in gaited horses. Ultrasound images were obtained from 50 healthy adult horses of the Mangalarga Marchador (MM; n=25) and Campeiro (n=25) breeds. Static and dynamic angles of the MCP joint were measured from photographs and video recordings. Higher ME values were evinced for the SL only in the group with the smaller dynamic angles of the MCP joint in the MM horses, in addition to weak negative correlation between the dynamic angle and ME. Moreover, weak negative correlation was also observed between the static angle and TA of the lateral branch of the SL and between the static angle and the ME of the SDFT. However, the difference observed in the group of MM horses, as well as the weak correlation, was not considered sufficient to support the hypothesis that a smaller angle of the MCP joint (greater extension) is associated with larger TA and ME values for the structures. The results also suggest that the static and dynamic angles of the MCP joint do not influence the TA and ME values of the SDFT and SL in gaited horses.","PeriodicalId":35701,"journal":{"name":"Journal of Equine Science","volume":"32 4","pages":"135-141"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/7e/1f/jes-32-135.PMC8731686.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39678465","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

Effect of a novel rice fermented extract on gastric ulcers in horses. 一种新型大米发酵提取物对马胃溃疡的影响。

Journal of Equine Science Pub Date : 2021-06-01 Epub Date: 2021-06-18 DOI: 10.1294/jes.32.27

Naoki Sasaki, Yasunobu Nishi, Yumi Fujiwara, Tetsuya Takeyama, Hayata Kumagai, Samantha Senarathna, Shigeto Ushiya, Takashi Tokuyama, Takahito Tokuyama, Takaaki Tokuyama, Tomohiro Mii, Satomi Ayaki, Kosuke Matsuno, Yuki Nakagawa, Yoshitaka Nishihara, Yasuho Taura

{"title":"Effect of a novel rice fermented extract on gastric ulcers in horses.","authors":"Naoki Sasaki, Yasunobu Nishi, Yumi Fujiwara, Tetsuya Takeyama, Hayata Kumagai, Samantha Senarathna, Shigeto Ushiya, Takashi Tokuyama, Takahito Tokuyama, Takaaki Tokuyama, Tomohiro Mii, Satomi Ayaki, Kosuke Matsuno, Yuki Nakagawa, Yoshitaka Nishihara, Yasuho Taura","doi":"10.1294/jes.32.27","DOIUrl":"https://doi.org/10.1294/jes.32.27","url":null,"abstract":"Gastric ulcers cause appetite loss, poor body condition, and colic in horses. This study investigated the protective effect of a rice fermented extract on the gastric mucosa in 17 healthy Thoroughbreds. For one month, horses in the rice fermented extract (nine horses) and control (eight horses) groups were orally administered a rice fermented extract (100%; 0.2 ml/kg, SID) and tap water (0.2 ml/kg), respectively. Gastric endoscopic images were obtained before and one month after rice fermented extract administration. The gastric ulcer score was lower after administration (median, 1; maximum, 2; minimum, 1) than before administration (median, 4; maximum, 4; minimum, 3) in the rice fermented extract group (P<0.05). In conclusion, the administration of a rice fermented extract for one month improves gastric mucosal lesions in Thoroughbreds with gastric ulcers.","PeriodicalId":35701,"journal":{"name":"Journal of Equine Science","volume":"32 2","pages":"27-30"},"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/54/fe/jes-32-027.PMC8240527.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39148521","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

Influence of exercise and emotional stresses on secretion of prolactin and growth hormone in Thoroughbred horses. 运动和情绪应激对纯种马催乳素和生长激素分泌的影响。

Journal of Equine Science Pub Date : 2021-06-01 Epub Date: 2021-06-18 DOI: 10.1294/jes.32.49

Tomoki Kitaura, Fumio Sato, Testuro Hada, Mutsuki Ishimaru, Rumi Kodama, Yasuo Nambo, Gen Watanabe, Kazuyoshi Taya

引用次数: 3

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