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Nasciutti NR, Garcia FG, da Silva ESM, de Miranda RL, Fontes LAR, Rosa JB, Headley SA, Mundim AV, Saut JPE. Energy and mineral metabolism of peripartum mares and foals of the Quarter Horse breed. Vet Clin Pathol 2021; 50:535-542. [PMID: 34873725 DOI: 10.1111/vcp.13033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Several studies have demonstrated variations in peripartum blood biochemical analytes used to monitor the health status of mares and their foals of different breeds. OBJECTIVES We aimed to characterize the physiologic changes of peripartum energy and mineral metabolism in healthy Quarter Horse mares and their neonatal foals. METHODS Blood samples were initially collected from 17 mares on days 60 and 30 prepartum, and from mares and their foals on the day of parturition (after colostrum ingestion), and on days 15, 30, and 60 postpartum. The serum concentrations of calcium, phosphorus, magnesium, total cholesterol (T-Cho), triglyceride, beta-hydroxybutyrate (BHBA), and nonesterified fatty acids (NEFA) were measured using commercial kits. Statistical differences were analyzed using one-way ANOVA followed by Tukey's test (parametric variables) or the Kruskal-Wallis test followed by Dunn's multiple comparison test (nonparametric variables). RESULTS Fourteen of 17 healthy Quarter Horse mares and their neonatal foals remained in the study until termination. Serum BHBA, T-Cho, and calcium concentrations in mares showed significant differences during the observation period. Serum BHBA concentrations increased from 60 days prepartum to 60 days postpartum. Postpartum serum T-Cho and calcium concentrations significantly decreased until day-30 postpartum. In the foals, NEFA, T-Cho, calcium, and magnesium concentrations significantly differed between sampling times. In the foals, serum NEFA concentrations decreased from parturition until day-60 postpartum, while serum T-Cho, calcium, and magnesium concentrations were lowest at day-30 postpartum. CONCLUSIONS The temporal changes observed in the blood biochemical analytes of this study could be used to improve the clinical evaluation of periparturient mare and neonatal foal Quarter Horses.
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Affiliation(s)
- Nayara R Nasciutti
- Large Animal Health Laboratory, Faculty of Veterinary Medicine, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil.,Faculty of Veterinary Medicine, Centro Universitário do Triângulo, Uberlândia, MG, Brazil
| | - Felipe G Garcia
- Large Animal Health Laboratory, Faculty of Veterinary Medicine, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Elisa S M da Silva
- Large Animal Health Laboratory, Faculty of Veterinary Medicine, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Renata L de Miranda
- Large Animal Health Laboratory, Faculty of Veterinary Medicine, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Lucas A R Fontes
- Faculty of Veterinary Medicine, Centro Universitário do Triângulo, Uberlândia, MG, Brazil
| | - Junara B Rosa
- Faculty of Veterinary Medicine, Centro Universitário do Triângulo, Uberlândia, MG, Brazil
| | - Selwyn A Headley
- Laboratory of Animal Pathology, Department of Veterinary Preventive Medicine, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Antonio V Mundim
- Large Animal Health Laboratory, Faculty of Veterinary Medicine, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - João P E Saut
- Large Animal Health Laboratory, Faculty of Veterinary Medicine, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
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Feijó LS, Curcio BR, Pazinato FM, Almeida BA, Moraes BS, Borba LA, Feijó JO, Nogueira CE. Hematological and biochemical indicators of maturity in foals and their relation to the placental features. PESQUISA VETERINARIA BRASILEIRA 2018. [DOI: 10.1590/1678-5150-pvb-5503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ABSTRACT: Newborn’s health is directly related to gestational conditions and placental efficiency. The aims of this study were: (1) To evaluate hematological and biochemical parameters of foals born from mares with placentitis at birth and at 24h of age, (2) to verify if placental pathology had any influence on neonatal maturity degree through hematological and biochemical response of those foals. According to placental findings (control and placentitis) and neonatal maturity degree (mature and immature), foals were divided into three groups: (1) Control group (n=22), foals born from mares with placentitis and classified as (2) Mature (n=26), and (3) Immature (n=10). The hematocrit and plasma concentration of fibrinogen, total plasma protein, white blood cells count, lactate, glucose, creatinine, urea, albumin, bilirubin, triglyceride, cholesterol, calcium, phosphorus, magnesium, aspartate aminotransferase (AST), creatine kinase (CK), alkaline phosphatase (ALP), and gamma-glutamyltransferase (GGT) were measured. Placental features were significantly different between neonatal maturity degree (P=0.001). Mares that had acute placentitis foaled more immature neonates (n=8/10; 80%). Concentrations of fibrinogen (P=0.003), creatinine (P=0.021), total cholesterol (P=0.014), AST (P=0.001), GGT (P=0.002), total (P=0.001) and unconjugated bilirubin (P=0.010) were higher at birth in the Immature group, whereas albumin levels were lower (P=0.002). Foals born from mares with placentitis presented hyperlactatemia at 24h of age (P=0.002). Acute placentitis had an influence on the neonatal maturity, allowing an accelerated but incomplete fetal maturation. The monitoring of lactate, fibrinogen, creatinine, bilirubin, cholesterol, albumin, AST, and GGT levels, associated with clinical, physical, and behavior evaluation may contribute as indicators of neonatal maturity.
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