The study aimed to determine the effect of age and reproductive status on the fibre profile in female Huacaya alpacas from Puno, Peru. Age (young, younger adult, older adult, and old) and reproductive status (pregnant lactating, non-pregnant lactating, pregnant without calf at foot, and non-pregnant without calf at foot) were considered. After one year of fibre growth, samples were taken from the middle rib (5 g) and analysed with the optical fibre diameter analyser (OFDA 2000) equipment. The data were fitted to a cubic linear regression and analysed under a 4x4 factorial in a completely randomized design. Means were compared using the Duncan's multiple test. Age and reproductive status interact in the presentation of the fibre diameter profile, as well as the minimum initial diameter and the maximum diameter, where young and pregnant lactating present the smallest diameter (p<0.05). ...

The objective of this study was to evaluate the possibility of making cheese from alpaca milk. The physicochemical properties of the milk were determined, as well as the yield, chemical composition, and sensorial characteristics of the cheese. Milk was obtained by manual milking of alpacas at the beginning of lactation with crias at foot, set aside 12 hours before milking. The density, Dornic acidity and Gerber fat were determined, and total and non-fat milk solids were estimated in the milk. The chemical composition of the cheese was determined by official methods of the AOAC, and the sensory characteristics of the cheese through the hedonic test on a scale of 1 to 4 with 100 panelists. Fresh milk had a density of 1.0469 ± 0.0025, acidity 16.92 ± 1.74 °D, fat 4.12 ± 0.08%, protein 6.34 ± 0.41%, total solids 16.84 ± 0.70%, solids non-fat 12.72 ± 0.63% and a cheese yield of 21.6 ±...

El trabajo tuvo como objetivo evaluar la posibilidad de elaborar queso a partir de leche de alpaca. Se determinaron las propiedades fisicoquímicas de la leche, así como el rendimiento, composición química y características sensoriales del queso. La leche se obtuvo por ordeño manual de alpacas madres en inicio de lactación con crías en pie, apartadas 12 horas antes del ordeño. En la leche se analizó la densidad, acidez Dornic, grasa Gerber, y se estimaron los sólidos totales y no grasos de la leche. La composición química del queso se determinó por métodos oficiales de la AOAC, y las características sensoriales del queso a través de la prueba hedónica en escala de 1 a 4 con 100 panelistas. La leche fresca presentó una densidad de 1.0469 ± 0.0025, acidez 16.92 ± 1.74 °D, grasa 4.12 ± 0.08%, proteína 6.34 ± 0.41%, sólidos totales 16.84 ± 0.70%, sólidos no grasos ...