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Abanico veterinario
versión On-line ISSN 2448-6132versión impresa ISSN 2007-428X
Resumen
BENITEZ-MEZA, Alfredo et al. Evaluation of the productive and economic performance of feed for fattening pigs. Abanico vet [online]. 2015, vol.5, n.3, pp.36-41. ISSN 2448-6132.
The objective was to evaluate the production cost for pigs in different stages from farrow-to-finish that were fed with commercial and not commercial diets. 28 Landrace-Yorkshire pigs were used (males and females) at an initial weight of 14.028 ± 2.587 kg and were distributed in three diets: 1) commercial feed 1; 2) commercial feed 2; and 3) not commercial feed. The experiment was developed for 86 days. The evaluated variables for each one of the production stages were: initiation weight gain (IWG), final weight gain (FWG), daily weight gain (DWG), feed conversion (FC) and the cost of the feed for kg of live weight gained ($/kg LWG). The data was analyzed through a variance analysis after a randomized design, using the initial weight as covariable. There were no significant differences in the studied variables at the first fattening and second fattening stages (P>0.05). At the development stage, diet 2 (commercial feed 2) was the most efficient (P<0.05). But there was no difference in FC between treatment 2 and 3, and it was the lowest in T1. Feed cost per kg of weight gain was lower with diet 3 compared to diet 1 and 2 at starting, growing and finishing stage. It is concluded that in the same conditions, it is feasible to make a complete feed formula based on available raw materials that covers all the porcine requirements maintaining the productive variables at a lower cost compared to the commercial feeds.
Palabras llave : Productive parameters; economical; alimentation; pigs.