{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:54:23Z","timestamp":1760237663601,"version":"build-2065373602"},"reference-count":48,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2022,6,17]],"date-time":"2022-06-17T00:00:00Z","timestamp":1655424000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"S\u00e3o Paulo Research Foundation (FAPESP)","award":["2014\/01951-1","2022\/0978-4","001"],"award-info":[{"award-number":["2014\/01951-1","2022\/0978-4","001"]}]},{"name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior (CAPES)\u2014Brasil","award":["2014\/01951-1","2022\/0978-4","001"],"award-info":[{"award-number":["2014\/01951-1","2022\/0978-4","001"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animals"],"abstract":"<jats:p>The aim of the present study is to evaluate the erythrogram and iron serum profiles of neonatal calves born spontaneously or born by elective cesarean section with or without dexamethasone induction. The research was performed on 38 newborn Nellore calves. Three groups of calves were assigned according to the type of birth: calves born by spontaneous vaginal calving (n = 10), calves born by elective cesarean section without inducing labor (n = 14), and calves born by elective cesarean section with labor induction with dexamethasone (n = 14). Blood samples to assess red blood cell count (RBC), hemoglobin, hematocrit, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), concentration of mean corpuscular hemoglobin (MCHC), serum iron (SFe), total capacity to bind iron to transferrin (TIBIC), and transferrin saturation index (TSI) were performed at calving (0, 3, 6, and 12 h of life) and on 1, 2, 3, 5, 7, 10, 15, and 30 days of life. Regardless of the experimental group (calves born spontaneously, or born by elective cesarean section with or without dexamethasone induction), in the first day of life there was a decrease in the number of red blood cells, hemoglobin rates, and values of the globular volume. In the period of the first 10 days of life, animals from spontaneous vaginal delivery quickly recovered values of erythrocytes, hemoglobin, and packed cell volume, whereas animals born by elective C-section (induced and uninduced) did not recover as quickly in their rates of hemoglobin and packed cell volume values. In calves born by elective C-section (induced and uninduced), it was observed in their period between 10 and 30 days of life that the MCV and MCH were reduced by passing the presenting microcytic hypochromic when compared with calves obtained by spontaneous vaginal delivery. In the period between 10 and 30 days of life, the levels of SFe and TSI in animals born by elective C-section (induced and uninduced) are significantly lower. The differences in the erythrogram values between Nellore calves born spontaneously and those by elective C-section with or without induction must be considered consequent to the process of neonatal adaptation to extrauterine life. Iron supplementation in the first month of life in calves from cesarean could be recommended to prevent anemia of this iron deficiency.<\/jats:p>","DOI":"10.3390\/ani12121561","type":"journal-article","created":{"date-parts":[[2022,6,17]],"date-time":"2022-06-17T01:48:12Z","timestamp":1655430492000},"page":"1561","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Influence of Elective Cesarean Calving (with and without Dexamethasone Induction) on the Erythrogram and Iron Serum Profiles in Nellore Calves"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0988-6720","authenticated-orcid":false,"given":"Luan Ricci","family":"Silva","sequence":"first","affiliation":[{"name":"Department of Anatomy of Domestic and Wild Animals, School of Veterinary Medicine and Animal Sciences, University of S\u00e3o Paulo, 87 Professor Orlando Marques de Paiva Avenue, S\u00e3o Paulo 05508-010, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1039-371X","authenticated-orcid":false,"given":"Renan Braga","family":"Paiano","sequence":"additional","affiliation":[{"name":"Department of Anatomy of Domestic and Wild Animals, School of Veterinary Medicine and Animal Sciences, University of S\u00e3o Paulo, 87 Professor Orlando Marques de Paiva Avenue, S\u00e3o Paulo 05508-010, Brazil"},{"name":"Department of Animal Reproduction, School of Veterinary Medicine and Animal Sciences, University of S\u00e3o Paulo, 87 Professor Orlando Marques de Paiva Avenue, S\u00e3o Paulo 05508-010, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5516-2662","authenticated-orcid":false,"given":"Mariana Guimar\u00e3es de Oliveira","family":"Diogo","sequence":"additional","affiliation":[{"name":"Department of Anatomy of Domestic and Wild Animals, School of Veterinary Medicine and Animal Sciences, University of S\u00e3o Paulo, 87 Professor Orlando Marques de Paiva Avenue, S\u00e3o Paulo 05508-010, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Melina Marie","family":"Yasuoka","sequence":"additional","affiliation":[{"name":"Department of Anatomy of Domestic and Wild Animals, School of Veterinary Medicine and Animal Sciences, University of S\u00e3o Paulo, 87 Professor Orlando Marques de Paiva Avenue, S\u00e3o Paulo 05508-010, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ana Cla\u00fadia","family":"Birali","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of S\u00e3o Paulo, 225 Duque de Caxias, Pirassununga 13635-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mayara Berto","family":"Massuda","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of S\u00e3o Paulo, 225 Duque de Caxias, Pirassununga 13635-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria Luiza Kuhne","family":"Celestino","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of S\u00e3o Paulo, 225 Duque de Caxias, Pirassununga 13635-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniela Becker","family":"Birgel","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of S\u00e3o Paulo, 225 Duque de Caxias, Pirassununga 13635-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fl\u00e1vio Jos\u00e9 Minieri","family":"Marchese","sequence":"additional","affiliation":[{"name":"Department of Anatomy of Domestic and Wild Animals, School of Veterinary Medicine and Animal Sciences, University of S\u00e3o Paulo, 87 Professor Orlando Marques de Paiva Avenue, S\u00e3o Paulo 05508-010, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3243-8248","authenticated-orcid":false,"given":"Paulo Fantinato","family":"Neto","sequence":"additional","affiliation":[{"name":"Department of Anatomy of Domestic and Wild Animals, School of Veterinary Medicine and Animal Sciences, University of S\u00e3o Paulo, 87 Professor Orlando Marques de Paiva Avenue, S\u00e3o Paulo 05508-010, Brazil"},{"name":"Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of S\u00e3o Paulo, 225 Duque de Caxias, Pirassununga 13635-900, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vanessa Martins","family":"Storillo","sequence":"additional","affiliation":[{"name":"Department of Anatomy of Domestic and Wild Animals, School of Veterinary Medicine and Animal Sciences, University of S\u00e3o 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