Physiological, morphological hair, and blood parameters of the goat group genetic Azul in the semiarid

IF 2.6 3区地球科学 Q2 BIOPHYSICS

International Journal of Biometeorology Pub Date : 2026-04-30 DOI:10.1007/s00484-026-03195-4

Jaciara Ribeiro Miranda, Roberto Germano Costa, Maria Norma Ribeiro, Edilson Paes Saraiva, Valquíria Cordeiro da Silva, Neila Lidiany Ribeiro

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Abstract

This study was conducted to investigate the effects of the climatic seasons on physiological, morphological, and hormonal parameters in female goats of the Brazilian Azul genetic group. Thirty females were used in the rainy season and thirty in the dry season, all non-lactating and non-pregnant, aged between 1 and 2 years. The data were analyzed using the Statistical Analysis System (SAS) and the General Linear Models procedure. Air temperature, black globe temperature, and relative humidity were measured by an automated weather station. Respiratory rate (RR), heart rate (HR), and surface temperature (TS) showed significant differences between periods and seasons, whereas rectal temperature did not vary. Animals in the rainy season had longer hair compared to the dry season, with a significant difference (P = 0.0258). In the erythrogram, significant seasonal differences were observed for all variables analyzed: hematocrit (P = 0.0258), hemoglobin (P = 0.0365), red blood cell count (P = 0.0269), mean corpuscular volume (P = 0.0258), and mean corpuscular hemoglobin concentration (P = 0.0157).The animals had a lower respiratory rate and greater heat dissipation capacity during the dry season, allowing them to maintain rectal temperature. Morphological and hormonal (T3, T4, and cortisol) parameters change across the various climatic seasons.

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半干旱地区山羊群遗传Azul的生理、形态、毛发和血液参数。

本研究旨在研究气候季节对巴西Azul遗传群母羊生理、形态和激素参数的影响。雨季30只，旱季30只，年龄在1 ~ 2岁之间，均为非哺乳期和非妊娠期。使用统计分析系统（SAS）和一般线性模型程序对数据进行分析。空气温度、黑球温度和相对湿度由自动气象站测量。呼吸频率（RR）、心率（HR）和体表温度（TS）在不同时期和季节之间存在显著差异，而直肠温度没有变化。雨季动物毛发较旱季长，差异有统计学意义（P = 0.0258）。在红图中，所有分析的变量均观察到显著的季节差异：红细胞压积（P = 0.0258）、血红蛋白（P = 0.0365）、红细胞计数（P = 0.0269）、平均红细胞体积（P = 0.0258）和平均红细胞血红蛋白浓度（P = 0.0157）。这些动物在旱季呼吸频率较低，散热能力更强，这使它们能够保持直肠温度。形态和激素（T3、T4和皮质醇）参数在不同的气候季节变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Biometeorology 地学-环境科学

CiteScore

6.40

自引率

9.40%

发文量

183

审稿时长

1 months

期刊介绍： The Journal publishes original research papers, review articles and short communications on studies examining the interactions between living organisms and factors of the natural and artificial atmospheric environment. Living organisms extend from single cell organisms, to plants and animals, including humans. The atmospheric environment includes climate and weather, electromagnetic radiation, and chemical and biological pollutants. The journal embraces basic and applied research and practical aspects such as living conditions, agriculture, forestry, and health. The journal is published for the International Society of Biometeorology, and most membership categories include a subscription to the Journal.