Josiel Ferreira, Elisomar André da Silva, Robson Mateus Freitas Silveira, José Ernandes Rufino de Sousa, Ricardo Lopes Dias da Costa, Concepta Margaret McManus, Débora Andréa Evangelista Façanha
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AI was designed using a multivariate approach (principal component analysis) to \"weigh\" the influence of each variable in the animal responses. The variables more important for adaptive aspects of Red Morada Nova were: haematology, electrolytes and acid–base status. The hemoglobin (HG), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), sodium (Na<sup>+</sup>), oxygen pressure (PO<sub>2</sub>), glucose (GLU) and albumin (ALB) were significantly higher in Red Morada Nova sheep and hydrogen carbonate (HCO<sup>3</sup>), base excess (BE), total carbon dioxide concentration (TCO<sub>2</sub>) and URE were significantly higher in the white phenotype. The variables more important for adaptive aspects of White Morada Nova sheep were: (K<sup>+</sup>), total protein (TP), PO<sub>2</sub>, HG, cholesterol (CHO), rectal temperature (RT) and glucose (GLU). Both phenotypes showed a high adaptation level, however, a higher value was generated for the Red Morada Nova sheep (81.97). This study concludes that both phenotypes of the Morada Nova sheep breed are well adapted to the climatic condition of the Brazilian tropical region using different adaptive mechanisms.</p>","PeriodicalId":588,"journal":{"name":"International Journal of Biometeorology","volume":null,"pages":null},"PeriodicalIF":3.0000,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Assessment of the adaptive capacity of Morada Nova ewes with different coat coloration\",\"authors\":\"Josiel Ferreira, Elisomar André da Silva, Robson Mateus Freitas Silveira, José Ernandes Rufino de Sousa, Ricardo Lopes Dias da Costa, Concepta Margaret McManus, Débora Andréa Evangelista Façanha\",\"doi\":\"10.1007/s00484-024-02676-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Coat color is a factor affecting heat tolerance in tropical ruminant and a particular coat color can determine which is more resilient to environmental changes. 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引用次数: 0
摘要
被毛颜色是影响热带反刍动物耐热性的一个因素,特定的被毛颜色可以决定哪种反刍动物对环境变化的适应能力更强。本研究的目的是利用适应性指数(AI)测量不同毛色的莫拉达诺瓦羊的适应性水平。研究对象为成年母羊,包括两种不同毛色的 Morada Nova 羊(红色和白色),平均体重分别为 28.02 ± 5.70 千克和 31.47 ± 3.41 千克。对生理参数、血液学、电解质、酸碱状态、矿物质、肾功能、代谢物、酶和蛋白质进行了测量。采用多变量方法(主成分分析)设计人工智能,以 "权衡 "每个变量对动物反应的影响。对 Red Morada Nova 的适应性更重要的变量是:血液学、电解质和酸碱状态。红色 Morada Nova 羊的血红蛋白 (HG)、平均血红蛋白 (MCH)、平均血红蛋白浓度 (MCHC)、钠 (Na+)、氧压 (PO2)、葡萄糖 (GLU) 和白蛋白 (ALB) 明显较高,而白色表型羊的碳酸氢盐 (HCO3)、碱过量 (BE)、总二氧化碳浓度 (TCO2) 和脲酸水平则明显较高。对白莫拉达新星绵羊的适应性更重要的变量是(K+)、总蛋白(TP)、PO2、HG、胆固醇(CHO)、直肠温度(RT)和葡萄糖(GLU)。两种表型都显示出较高的适应水平,但红色 Morada Nova 羊的适应值更高(81.97)。这项研究的结论是,莫拉达诺瓦绵羊品种的两种表型都能很好地适应巴西热带地区的气候条件,并采用了不同的适应机制。
Assessment of the adaptive capacity of Morada Nova ewes with different coat coloration
Coat color is a factor affecting heat tolerance in tropical ruminant and a particular coat color can determine which is more resilient to environmental changes. The aim of this study was to measure the level of adaptation of Morada Nova sheep with different coat color by using an Adaptability Index (AI). Adult ewes were used, including two different coat colors of Morada Nova sheep (red and white) with mean of body weight of 28.02 ± 5.70 kg and 31.47 ± 3.41 kg, respectively. Physiology parameters, hematology, electrolytes, acid–base status, mineral, renal functions, metabolites, enzymes, and proteins were measured. AI was designed using a multivariate approach (principal component analysis) to "weigh" the influence of each variable in the animal responses. The variables more important for adaptive aspects of Red Morada Nova were: haematology, electrolytes and acid–base status. The hemoglobin (HG), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), sodium (Na+), oxygen pressure (PO2), glucose (GLU) and albumin (ALB) were significantly higher in Red Morada Nova sheep and hydrogen carbonate (HCO3), base excess (BE), total carbon dioxide concentration (TCO2) and URE were significantly higher in the white phenotype. The variables more important for adaptive aspects of White Morada Nova sheep were: (K+), total protein (TP), PO2, HG, cholesterol (CHO), rectal temperature (RT) and glucose (GLU). Both phenotypes showed a high adaptation level, however, a higher value was generated for the Red Morada Nova sheep (81.97). This study concludes that both phenotypes of the Morada Nova sheep breed are well adapted to the climatic condition of the Brazilian tropical region using different adaptive mechanisms.
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