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Ecosistemas y recursos agropecuarios

On-line version ISSN 2007-901XPrint version ISSN 2007-9028


FIGUEROA-VELASCO, José Luis et al. Arginine as functional aminoacido in diets for nursery pigs. Ecosistemas y recur. agropecuarios [online]. 2019, vol.6, n.17, pp.377-382. ISSN 2007-901X.

The objective of this research was to determine the optimum concentration of synthetic arginine (Arg) that should be added to diets of nursery pigs to improve the productive performance. The addition of five concentrations of synthetic Arg (0.0, 0.5, 1.0, 1.5 and 2.0%) in diets was evaluated with 40 hybrid (Yorkshire × Duroc × Pietrain) barrows, with average initial live weight of 8.72 ± 1.36 kg and 30 days of age. The design used was completely randomized with five treatments and eight repetitions. The data were analyzed with ANOVA and treatment means were compared with Tukey’s test (p ≤ 0.05). The addition of 0.5% Arg in the diet improved average daily feed intake, average daily gain and gain: feed ratio (p < 0.05). The plasma urea concentration increased with the addition of 2% Arg in the diet (p < 0.05).

Keywords : Arginine; functional amino acid; carcass characteristics; pigs; productive performance.

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