2025 REVISTA CAATINGA 2025 38(卷), null(期), (null页)
This study aims to advance knowledge of the reproductive aspects of the red-rumped agouti (Dasyprocta leporina). The objective was to describe the organic and inorganic constituents present in the seminal plasma of agouti specimens analyzed under different environmental conditions in a semiarid region. Seminal plasma was collected from six adult males via electroejaculation during both the dry and rainy seasons. Organic components (total proteins, albumin, cholesterol, triglycerides, fructose, and glucose) and inorganic components (phosphorus, magnesium, calcium, iron, chloride, sodium, and potassium) were analyzed. Significantly higher concentrations of glucose (88.24 vs. 26.27 mg/dL), phosphorus (66.40 vs. 3.67 mg/dL), and potassium (92.67 vs. 19.68 mmol/L) were detected during the dry season compared to the rainy season (p < 0.05). Conversely, chloride concentrations (43.04 vs. 201.40 mEq/L) were significantly higher during the rainy season (p < 0.05). This study provides the first description of the biochemical composition of seminal plasma in this species, revealing important seasonal variations in these constituents within the Caatinga biome.