{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,22]],"date-time":"2025-10-22T05:24:09Z","timestamp":1761110649023,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2022,9,9]],"date-time":"2022-09-09T00:00:00Z","timestamp":1662681600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Autonomous University of Mexico","award":["PAPIIT IT200117"],"award-info":[{"award-number":["PAPIIT IT200117"]}]},{"name":"CONACyT, National Problems 203","award":["PAPIIT IT200117"],"award-info":[{"award-number":["PAPIIT IT200117"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animals"],"abstract":"<jats:p>Pharmacokinetics\/pharmacodynamics ratios of enrofloxacin HCl-2H2O (enro-C) in cows to treat bovine leptospirosis prompted this clinical trial in the highlands (HL) and the tropics (TL) in Mexico. In the HL, 111 Holstein-Friesian cows were included and 38 F1 Zebu\u2013Holstein\/Friesians in the TL. Affected cows were randomly divided into two treatment groups, both in the HL and TL. PCR and MAT tests were performed before and after treatment. Treatments in both groups were administered for 5 d with either IM injections of enro-C or streptomycin\/penicillin-G. Reproductive performance data were gathered for 90 d. The cows treated with enro-C became PCR negative: 87.5% and 78.94% on day 5, 92.85% and 94.73% on day 28 (in the HL and TL, respectively). For streptomycin\/penicillin-G, the same values were 65.45% and 70.90% on day 5, and 73.68% twice on day 28 in the HL and TL, respectively. In both groups and geographical settings, the MAT titers dropped on day 28 but remained above reference values usually considered negative. The gestation rates were: 86.53% and 79.06% and 88.88% and 87.5% for the HL and TL, either with enro-C or streptomycin\/penicillin-G, respectively. This is the first report of successful treatment with a fluoroquinolone derivative in treating bovine leptospirosis with a high bacteriological cure rate.<\/jats:p>","DOI":"10.3390\/ani12182358","type":"journal-article","created":{"date-parts":[[2022,9,12]],"date-time":"2022-09-12T20:52:25Z","timestamp":1663015945000},"page":"2358","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Treatment of Bovine Leptospirosis with Enrofloxacin HCl 2H2O (Enro-C): A Clinical Trial"],"prefix":"10.3390","volume":"12","author":[{"given":"Jes\u00fas Mendoza","family":"Bautista","sequence":"first","affiliation":[{"name":"Department of Physiology and Pharmacology, National Autonomous University of Mexico (UNAM), Av. Universidad 3000, Mexico City 04510, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Melissa","family":"Aranda Estrada","sequence":"additional","affiliation":[{"name":"Department of Physiology and Pharmacology, National Autonomous University of Mexico (UNAM), Av. Universidad 3000, Mexico City 04510, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4823-0388","authenticated-orcid":false,"given":"Lilia","family":"Guti\u00e9rrez Olvera","sequence":"additional","affiliation":[{"name":"Department of Physiology and Pharmacology, National Autonomous University of Mexico (UNAM), Av. Universidad 3000, Mexico City 04510, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Reyes","family":"Lopez Ordaz","sequence":"additional","affiliation":[{"name":"Department of Agricultural and Animal Production, Autonomous Metropolitan University (UAM), Calz. del Hueso 1100, Mexico City 04960, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8802-5274","authenticated-orcid":false,"given":"H\u00e9ctor","family":"Sumano L\u00f3pez","sequence":"additional","affiliation":[{"name":"Department of Physiology and Pharmacology, National Autonomous University of Mexico (UNAM), Av. 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