{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,26]],"date-time":"2025-06-26T12:10:27Z","timestamp":1750939827415,"version":"3.38.0"},"reference-count":50,"publisher":"American Veterinary Medical Association (AVMA)","issue":"1","license":[{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["javma"],"published-print":{"date-parts":[[2024,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n<jats:sec>\n<jats:title>OBJECTIVE<\/jats:title>\n<jats:p>The objectives of this study were to evaluate the prevalence of chronic <jats:italic>Anaplasma marginale<\/jats:italic> infection in beef bulls from eastern Kansas and compare breeding soundness parameters between <jats:italic>A marginale<\/jats:italic>\u2013infected and uninfected bulls. We hypothesized that bulls with chronic anaplasmosis would have inferior breeding soundness exam (BSE) outcomes as a result of persistent <jats:italic>A marginale<\/jats:italic> infection or the consequence of initial clinical disease compared to uninfected bulls.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>ANIMALS<\/jats:title>\n<jats:p>535 client-owned beef bulls from eastern Kansas undergoing routine BSE.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>METHODS<\/jats:title>\n<jats:p>Complete BSEs were conducted by participating veterinarians according to the second edition of the <jats:italic>Society for Theriogenology Manual for Breeding Soundness Examination of Bulls<\/jats:italic>. Blood samples were collected for PCV determination and analysis of <jats:italic>A marginale<\/jats:italic> infection status via quantitative PCR and cELISA. Logistic and linear regression methods were used to evaluate factors associated with <jats:italic>A marginale<\/jats:italic> infection status and BSE parameters.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>RESULTS<\/jats:title>\n<jats:p>Prevalence of chronic <jats:italic>A marginale<\/jats:italic> infection was 46% (245\/535) among bulls. Unsatisfactory BSE outcome was not statistically associated with chronic anaplasmosis in this study population, although more bulls with chronic anaplasmosis had unsatisfactory BSE outcomes (15.0 \u00b1 2.4% vs 12.0 \u00b1 2.2%). <\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>CLINICAL RELEVANCE<\/jats:title>\n<jats:p>Chronic anaplasmosis is prevalent among eastern Kansas breeding bulls; however, no negative association between chronic anaplasmosis and breeding soundness at time of BSE was observed.<\/jats:p>\n<\/jats:sec>","DOI":"10.2460\/javma.23.05.0292","type":"journal-article","created":{"date-parts":[[2023,10,13]],"date-time":"2023-10-13T22:16:32Z","timestamp":1697235392000},"page":"53-60","source":"Crossref","is-referenced-by-count":1,"title":["Kansas beef bulls with chronic anaplasmosis demonstrate satisfactory breeding soundness outcomes at breeding soundness examination"],"prefix":"10.2460","volume":"262","author":[{"given":"Anne C.","family":"Jablinski","sequence":"first","affiliation":[{"name":"Department of Diagnostic Medicine\/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS"},{"name":"Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Emily J.","family":"Reppert","sequence":"additional","affiliation":[{"name":"Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shaun","family":"Huser","sequence":"additional","affiliation":[{"name":"Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bradley D.","family":"Rob\u00e9rt","sequence":"additional","affiliation":[{"name":"Tallgrass Veterinary Hospital, Concordia, KS"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John R.","family":"Jaeger","sequence":"additional","affiliation":[{"name":"Western Kansas Agricultural Research and Extension Center, Kansas State University, Hays, KS"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qing","family":"Kang","sequence":"additional","affiliation":[{"name":"Department of Statistics, Kansas State University, Manhattan, KS"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rui","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Statistics, Kansas State University, Manhattan, KS"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tippawan","family":"Anantatat","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Medicine\/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chance L.","family":"Armstrong","sequence":"additional","affiliation":[{"name":"Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, AL"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kathryn E.","family":"Reif","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Medicine\/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1272","reference":[{"key":"ref1","series-title":"Vet Parasitol","first-page":"100021","article-title":"Bovine anaplasmosis herd prevalence and management practices as risk-factors associated with herd disease status","volume":"277S","author":"Spare MR","year":"2020","unstructured":"Spare MR, Hanzlicek GA, Wootten KL,  Bovine anaplasmosis herd prevalence and management practices as risk-factors associated with herd disease status. 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