Journal of Equine Veterinary Science最新文献_第9页

Metagenomic characterization of the equine endometrial microbiome during anestrus 发情期马子宫内膜微生物组的元基因组特征。

IF 1.3 3区农林科学

Journal of Equine Veterinary Science Pub Date : 2024-06-21 DOI: 10.1016/j.jevs.2024.105134

B.A. Heil , M. van Heule , S.K. Thompson , T.A. Kearns , K.F. Beckers , E.L. Oberhaus , G. King , P. Daels , P. Dini , J.L. Sones

{"title":"Metagenomic characterization of the equine endometrial microbiome during anestrus","authors":"B.A. Heil , M. van Heule , S.K. Thompson , T.A. Kearns , K.F. Beckers , E.L. Oberhaus , G. King , P. Daels , P. Dini , J.L. Sones","doi":"10.1016/j.jevs.2024.105134","DOIUrl":"10.1016/j.jevs.2024.105134","url":null,"abstract":"<div><p>The equine uterus is highly interrogated during estrus prior to breeding and establishing pregnancy. Many studies in mares have been performed during estrus under the influence of high estrogen concentrations, including the equine estrual microbiome. To date, it is unknown how the uterine microbiome of the mare is influenced by cyclicity; while, the equine vaginal microbiome is stable throughout the estrous cycle. We hypothesized that differences would exist between the equine endometrial microbiome of mares in estrus and anestrus. The aim of this study was two-fold: to characterize the resident endometrial microbiome of healthy mares during anestrus and to compare this with estrus. Double-guarded endometrial swabs were taken from healthy mares during estrus (<em>n</em> = 16) and in the following non-breeding season during anestrus (<em>n</em> = 8). Microbial population was identified using 16S rRNA sequencing. Our results suggest that the equine uterine microbiome in estrus has a low diversity and low richness, while during anestrus, a higher diversity and higher richness were seen compared to estrus. Despite this difference, both the estrus and anestrus endometrial microbiome were dominated by Proteobacteria, Firmicutes, and Bacteroidota. The composition of the microbial community between anestrus and estrus was significantly different. This may be explained by the difference in the composition of the endometrial immune milieu based on the stage of the cycle. Further research investigating the function of the equine endometrial microbiome and dynamics changes within the uterine environment is required.</p></div>","PeriodicalId":15798,"journal":{"name":"Journal of Equine Veterinary Science","volume":"140 ","pages":"Article 105134"},"PeriodicalIF":1.3,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141442850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chewing analysis of horses consuming bermudagrass hay in different styles of slow feeders as compared to loose hay 马匹咀嚼不同样式的慢速饲喂器中的百慕大草干草与散装干草的比较分析。

IF 1.3 3区农林科学

Journal of Equine Veterinary Science Pub Date : 2024-06-20 DOI: 10.1016/j.jevs.2024.105133

R. Hart, A. Bailey, J. Farmer, K. Duberstein

{"title":"Chewing analysis of horses consuming bermudagrass hay in different styles of slow feeders as compared to loose hay","authors":"R. Hart, A. Bailey, J. Farmer, K. Duberstein","doi":"10.1016/j.jevs.2024.105133","DOIUrl":"10.1016/j.jevs.2024.105133","url":null,"abstract":"<div><p>Mastication is the initial phase of digestion and is crucial to equine health due to its role in saliva production and food particle reduction. Hay nets have been promoted to slow the rate of hay consumption, with many styles of slow feeders available. Limited research has shown that nets may slow consumption, but no research has examined their effect on the horse's chewing frequency and patterns. The objective of this study was to compare chew frequency (CF, total number of chews/kg consumed) and chew duration (CD, total minutes chewed/kg consumed), as well as distribution of chews over a feeding period, of horses eating bermudagrass hay in three styles of hay nets [large mesh (LM), small mesh (SM), bottom hole (BH)] as compared to a control of loose hay (CTL). Treatments were assigned in a replicated Latin square 4 × 4 using eight horses. Horses were given a 24-hr acclimation period prior to recording their chewing patterns over a 24-hr period using an automated halter fit with a pressure-sensor noseband. Results indicate that CF was not influenced by treatment. However, SM resulted in longer CD as compared to CTL (<em>P</em> = <em>0.007</em>). Additionally, BH resulted in a higher percentage of chews completed in the first 240 min compared to SM (<em>P</em> = <em>0.039)</em>, indicating more rapid consumption. Results of this study indicate hay nets may not influence the number of chews a horse performs while masticating hay, but small mesh feeders may increase the CD and reduce early consumption rate.</p></div>","PeriodicalId":15798,"journal":{"name":"Journal of Equine Veterinary Science","volume":"140 ","pages":"Article 105133"},"PeriodicalIF":1.3,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141440566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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A case of a twin surviving to term following the abortion of its co-twin at 9 months in an Arabian mare 一例阿拉伯母马的双胞胎在 9 个月大时流产，但仍存活至足月。

IF 1.3 3区农林科学

Journal of Equine Veterinary Science Pub Date : 2024-06-17 DOI: 10.1016/j.jevs.2024.105132

M.K. Derbala , M.A.N. Sargious , N.M. Hagag , J.F. Pycock , A.M. Abu-Seida

引用次数: 0

A review of equine anesthetic induction: Are all equine anesthetic inductions “crash” inductions? 马匹麻醉诱导回顾：所有马匹麻醉诱导都是 "碰撞 "诱导吗？

IF 1.3 3区农林科学

Journal of Equine Veterinary Science Pub Date : 2024-06-13 DOI: 10.1016/j.jevs.2024.105130

John A.E. Hubbell , William W. Muir III , Emma Gorenberg , Klaus Hopster

引用次数: 0

Identifying the immunoglobulin G transporter in equine tissues: A look at the neonatal Fc receptor 识别马组织中的免疫球蛋白 G 转运体：观察新生儿 Fc 受体。

IF 1.3 3区农林科学

Journal of Equine Veterinary Science Pub Date : 2024-06-13 DOI: 10.1016/j.jevs.2024.105131

M.C. Guenther , P.P. Borowicz , M.R. Hirchert , P.L. Semanchik , J.L. Simons , J. Fridley , S.H. White-Springer , C.J. Hammer

{"title":"Identifying the immunoglobulin G transporter in equine tissues: A look at the neonatal Fc receptor","authors":"M.C. Guenther , P.P. Borowicz , M.R. Hirchert , P.L. Semanchik , J.L. Simons , J. Fridley , S.H. White-Springer , C.J. Hammer","doi":"10.1016/j.jevs.2024.105131","DOIUrl":"10.1016/j.jevs.2024.105131","url":null,"abstract":"<div><p>The neonatal Fc receptor (FcRn) is the receptor responsible for bidirectional transport of immunoglobulin G (IgG) across cells, maintenance of IgG levels in serum, and assisting with antigen presentation. Unfortunately, little is known about FcRn in horses. Therefore, the objective of this study was to provide fundamental information regarding the location of FcRn in equine tissues. Tissues were collected from six horses of mixed breed, age, and sex immediately following euthanasia. Sampling locations included the respiratory tract, gastrointestinal tract (GIT), other visceral organs, cornea, and synovial membrane of the stifle and carpal joints. Tissues for histological analysis were fixed, cross sectioned, and stained for FcRn. Areas of interest were captured and analyzed with data represented as relative fluorescence (RF) to indicate FcRn abundance. Tissues for qPCR analysis were placed in RNAlater and relative quantification (RQ) of FcRn transcripts (<em>FCGRT</em>) was calculated using the 2<sup>−ΔΔCT</sup> method, normalized to the geometric mean of three reference genes (<em>ACTB, GADPH, HPRT1</em>). Data were analyzed using the general linear model procedure of SAS. Abundance of FcRn differed between tissue types by immunofluorescence and qPCR analysis (<em>P</em> < 0.01). Joint synovium and respiratory tract tissues had the highest RF, GIT tissues expressed moderate RF, and other visceral organs had the lowest RF. Conversely, liver and kidney tissues had the highest RQ while the stomach and cornea had the lowest RQ. These data lay the foundation for future studies regarding FcRn and IgG in horses and their roles in disease prevention and treatment.</p></div>","PeriodicalId":15798,"journal":{"name":"Journal of Equine Veterinary Science","volume":"139 ","pages":"Article 105131"},"PeriodicalIF":1.3,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141327555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Readers Information 读者信息

IF 1.3 3区农林科学

Journal of Equine Veterinary Science Pub Date : 2024-06-12 DOI: 10.1016/S0737-0806(24)00126-6

引用次数: 0

Urothelial carcinoma in a mule 骡子的尿道癌

IF 1.3 3区农林科学

Journal of Equine Veterinary Science Pub Date : 2024-06-08 DOI: 10.1016/j.jevs.2024.105127

A.C. Valim , A.M.D. Costa , J.G. Quitzan , A.S. Borges , J.P. Oliveira-Filho , R.M. Amorim , D.G.A. Andrade

引用次数: 0

Pectin-honey hydrogel to prevent laparotomy surgical site infection in horses: A pilot study 果胶-蜂蜜水凝胶预防马腹腔手术部位感染：试点研究。

IF 1.3 3区农林科学

Journal of Equine Veterinary Science Pub Date : 2024-06-08 DOI: 10.1016/j.jevs.2024.105128

Marco Gandini, Anna Cerullo, Gessica Giusto

{"title":"Pectin-honey hydrogel to prevent laparotomy surgical site infection in horses: A pilot study","authors":"Marco Gandini, Anna Cerullo, Gessica Giusto","doi":"10.1016/j.jevs.2024.105128","DOIUrl":"10.1016/j.jevs.2024.105128","url":null,"abstract":"<div><p>Surgical site infection (SSI) is a common complication after celiotomy in horses, leading to increased morbidity and costs. Increased concern about antibiotic resistance justifies evaluation of alternative preventive approaches, such a Manuka honey which has displayed antimicrobial properties. Pectin-Honey Hydrogels (PHH), composed by Manuka honey and pectin provide a moist wound environment and microbial growth inhibition. The aim of the study was to evaluate the effectiveness of PHHs in preventing SSI in horses subjected to emergency laparotomy. Horses undergoing laparotomy were evaluated. Horses were randomly divided into two groups: Group 1 received PHH application onto the sutured <em>linea alba</em> before skin closure, while Group 2 received no treatment. Horses with postoperative antimicrobial administration or survival of less than 5 days were excluded. The incidence of SSIs was reported as percentages and compared between groups. Out of 44 horses enrolled in the study, only thirty-six were ultimately included. Exclusions occurred either due to death before 5 days postoperatively (2 horses) or the administration of postoperative antimicrobials (6 horses). The median length of hospitalization was 9 days (range 8–14 days). The overall occurrence of SSI was 19.4 %. One out of eighteen horses (5.5 %) in Group 1 and 6 out of 18 (33.3 %) horses in Group 2 developed SSI. Group 2 had an 8.5-fold increased risk of SSI (<em>p</em> = 0.035, OR = 8.5, 95 % CI. 0.9–80.07). No macroscopically visible adverse reactions were associated with PHH. PHH placed at the abdominal incision during surgery was safe and reduced the prevalence of SSI in horses.</p></div>","PeriodicalId":15798,"journal":{"name":"Journal of Equine Veterinary Science","volume":"139 ","pages":"Article 105128"},"PeriodicalIF":1.3,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141296200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Limited association between stallion-like behavior and hormonal indicators of testicular remnants in geldings 骟马的种马行为与睾丸残留物荷尔蒙指标之间的关联有限。

IF 1.3 3区农林科学

Journal of Equine Veterinary Science Pub Date : 2024-06-07 DOI: 10.1016/j.jevs.2024.105104

K. Omyla , A. Conley , D. Varner , P. Dini

{"title":"Limited association between stallion-like behavior and hormonal indicators of testicular remnants in geldings","authors":"K. Omyla , A. Conley , D. Varner , P. Dini","doi":"10.1016/j.jevs.2024.105104","DOIUrl":"10.1016/j.jevs.2024.105104","url":null,"abstract":"<div><p>Persistent stallion-like behavior is a common sign of cryptorchidism in supposed geldings. The presence of testicular tissue can be evaluated by analyzing hormones such as testosterone and anti-Müllerian hormone (AMH). Here, we used hormonal analysis to investigate relationships between the likely presence of testicular tissue and stallion-like behavior in samples submitted from presumptive geldings (<em>n</em> = 1,202), retrospectively. Most geldings with stallion-like behaviors had serum concentrations of testosterone (851/1,056; 80.6 %) and AMH (682/877; 77.8 %) below the laboratory reference range for cryptorchids (< 60 pg/mL and ≤ 0.15 ng/mL for testosterone and AMH, respectively). A total of 13 samples (13/716; 1.8 %) showed AMH concentrations typical for geldings but testosterone above the cryptorchid range. Conversely, 31 samples (31/716; 4.3 %) had high AMH, suggesting cryptorchidism, but testosterone concentrations implied no testicular tissue. Among the cryptorchid stallions, the AMH and testosterone concentrations did not vary based on the season. However, age categories affected the concentration of both hormones among the presumptive true cryptorchid stallions. The results of this study demonstrate that undesirable behavior in geldings is rarely associated with the presence of testicular tissue, as assessed by these two hormonal biomarkers. This information highlights the complexity of behavior and demonstrates that persistent stallion-like behavior in geldings could be related to factors other than the presence of testicular tissue.</p></div>","PeriodicalId":15798,"journal":{"name":"Journal of Equine Veterinary Science","volume":"139 ","pages":"Article 105104"},"PeriodicalIF":1.3,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0737080624001102/pdfft?md5=566c2c442dd0a19a997fcd5d3434d831&pid=1-s2.0-S0737080624001102-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141296199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dry matter concentration, particle size distribution and sand presence in faeces from horses with and without colic 患有和未患有肠绞痛的马粪便中的干物质浓度、粒度分布和含沙量。

IF 1.3 3区农林科学

Journal of Equine Veterinary Science Pub Date : 2024-06-07 DOI: 10.1016/j.jevs.2024.105126

Cecilia E. Müller

{"title":"Dry matter concentration, particle size distribution and sand presence in faeces from horses with and without colic","authors":"Cecilia E. Müller","doi":"10.1016/j.jevs.2024.105126","DOIUrl":"10.1016/j.jevs.2024.105126","url":null,"abstract":"<div><p>A study comprising 74 colic and 74 control horses admitted to an animal hospital was performed. Faecal samples were collected and analysed for dry matter concentration, particle size distribution using wet-sieving, and sand presence through a sand sedimentation test. Data on horse breed, age, gender and basic feeding variables was collected and analysed using χ<sup>2</sup>-tests. Faecal dry matter concentration, particle size distribution and sand score was compared between colic and non-colic horses, and between horses with different colic types, using one-way ANOVA. Results showed that colic and non-colic horse groups were similar in breed, age, gender and basic feeding variables. Faecal dry matter concentration, particle size distribution and sand score were similar among colic and non-colic horses. Horses diagnosed with “unknown colic cause” had higher proportion of particles >0.5 <1.0 mm size compared to horses with colic due to impactions in caecum or colon, torsion or gas accumulation (<em>P</em><0.05), but this difference was very small and most likely not of biological importance. Faecal dry matter concentration and sand score were similar among horses with different types of colic. Increased knowledge of the composition of particles of different size in equine faeces may enhance our understanding of digesta passage rate in colic and non-colic horses, which is needed to develop preventative measures of certain types of colic.</p></div>","PeriodicalId":15798,"journal":{"name":"Journal of Equine Veterinary Science","volume":"139 ","pages":"Article 105126"},"PeriodicalIF":1.3,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0737080624001321/pdfft?md5=74821b78b10152caca5d32c25d5cc231&pid=1-s2.0-S0737080624001321-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141296198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0