The Level of Prolactin,Serum Amyloid A,and Selected Biochemical Markers in Mares Before and After Parturition and Foal Heat |
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| Affiliation: | 1. Faculty of Veterinary Medicine, Department and Clinic of Animal Reproduction, University of Life Sciences in Lublin, Lublin, Poland;2. University Center of Veterinary Medicine, Agricultural University of Cracow, Cracow, Poland;3. Department of Human Anatomy, Medical University in Lublin, Lublin, Poland;4. Faculty of Veterinary Medicine, Department and Clinic of Internal Medicine, University of Life Sciences in Lublin, Lublin, Poland;1. Núcleo de Células Tronco e Terapia Celular Animal (NCT-TCA) da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil;2. Departamento de Medicina Veterinária do CCA/Universidade Federal do Espírito Santo, Alegre, Espírito Santo, Brazil;1. Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada;2. Animal Production, Welfare and Veterinary Sciences Department, Harper Adams University, Edgmond, United Kingdom;3. Department of Large Animal Clinical Sciences, University Saskatchewan, Saskatoon, Saskatchewan, Canada;1. Graf Lehndorff Institute for Equine Science, Vetmeduni Vienna, Neustadt (Dosse), Germany;2. Artificial Insemination and Embryo Transfer, Department for Small Animals and Horses, Vetmeduni Vienna, Vienna, Austria;3. Gynecology, Obstetrics and Andrology, Department for Small Animals and Horses, Vetmeduni Vienna, Vienna, Austria;1. Departamento de Clínicas Veterinária, Faculdade de Medicina Veterinária, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil;2. Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA;3. Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana IL 61802, USA |
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| Abstract: | The aim of the study was to determine the level of prolactin (PRL), serum amyloid A (SAA), and selected biochemical markers (T-Chol, AST, TP, Mg2+, P+, and Ca2+) in the blood of mares during the perinatal period. The study involved 14 mares of the Polish Coldblood Horse breed, which were in the third trimester of pregnancy. Blood was collected for testing 2 weeks before parturition and then 24 hours after delivery and in the foal heat (9 days) and 9 days after ovulation and breeding. The research revealed significant differences in the level of PRL and SAA before and after delivery. The highest PRL level was found 24 hours after delivery, lowest in foal heat and 9 days after ovulation. Serum amyloid A concentration was within the accepted norms; however, on day 9 after foaling, a significant increase of this protein was observed. All biochemical markers were within physiological limits. However, significant increases in T-Chol, AST, and TP levels was observed 24 hours after the delivery, whereas in foal heat and after ovulation levels of T-Chol and TP significantly decreased and the AST level remained at a similar level. There were no significant changes in electrolyte levels such as Mg2+, P+, and Ca2+. The pregnancy rate in the foal heat was at 43%. Collectively, the results of this study in conjunction with clinical observations demonstrated that when the perinatal period was normal, no disturbances in health related to pregnancy, parturition, lactation, and reproductive status during the postpartum period were found. |
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| Keywords: | Mare Pregnancy Prolactin Acute-phase response Serum biochemistry |
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