Resumen

ARUQUIPA, José Eduardo Ramírez; HUANCA, Bernardo Roque  y  YANA-NEIRA, Evelin Amparo. Feeding level in the productive performance of llamas and alpacas in the Andes of Perú. Rev. Inv. Cs. Agro. y Vet. [online]. 2022, vol.6, n.16, pp.145-157.  Epub 29-Abr-2022. ISSN 2664-0902.  https://doi.org/10.33996/revistaalfa.v6i16.157.

Undernourishment is a common feature in camelid farming in the Andes of Peru. The objective of the work was to determine the effect of feeding level on the productive performance of growing llamas and alpacas. 16 llamas (110.0 ± 10.8 kg) and 16 alpacas (56.9 ± 5.8 kg) 2-year-old males were used, distributed in 4 groups per species, fed with a mixture of oat hay and alfalfa hay (1:1). (94.2% dry matter, DM; 2219 kcal ME/kg DM), mechanically processed at 12 mm ø and offered in four consumption levels: T1, maintenance; T2, lower intermediate; T3, upper intermediate; and T4, ad libitum; corresponding to 40, 50, 60 and 70 g MS/kg LW0.75 respectively, for 55 days. At the end of the experiment, live weight was recorded and the animals were sacrificed. Live weight gain was different between groups: 130.0, 121.8, 29.1, -25.5 and 47.7, 43.6, 16.4, -14.5 g/d, for llamas and alpacas, respectively having a better gain at T4 and T3 (p < 0.05). Carcass yield showed no difference between groups, but was different (p < 0.05) between species, with 57.86% ± 0.50 and 53.96% ± 0.81, for llamas and alpacas, respectively. It is concluded that the feeding level has an effect on productive performance and carcass yield in llamas and male alpacas from the Andes.

Palabras clave : Alpacas; Weight gain; Llamas carcass yield; Comparative sacrifice.

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