This investigation aimed to determine and correlate mean fibre diameter (MFD) and total follicle density (TFD) in juvenile (1Á2 years) and adult (3Á6 years) white and brown alpacas in the Parinacota Region of northern Chile. Fibre samples and skin biopsies were taken from the mid-side regions of 77 individuals. ( (0.42, p B0.05) between lower mean fiber diameter and higher TFD was observed for all individuals. These results contribute to regional efforts to advance genetic selection based on TFD and improve fleece productivity and economic viability of the local industry.
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