Silage of alternative feeds of Cuban origin, a technical, economical and environmental option for the production of pork meat

P. Lezcano, Arelys Vazquez, A. Bolaños, J. L. Piloto, Mayuly Martínez, Y. Rodríguez


For evaluating maize substitution by liquid silage from a mixture of sugar cane molasses B, saccharomyces cream, sweet potato tubercle and concentrated vinasse (0, 33, 66 and 100 % dry basis), 144 Yorkshire/Duroc x Landrace pigs, males and females, in equal proportion with a live weight of 30 kg were used. Animals were distributed in four treatments, according to a completely randomized design. They
were housed in collective corrals at a rate of six animals/corral and six replications/treatment. There were no significant differences between treatments for 0, 33 and 66 % substitution but the opposite occurred between these and 100 % maize substitution (P ≤ 0.05) for average daily gain (532, 565, 544 and 495, and 758, 779, 753 and 687g) in the phases of 0-56 and 0-98 d of stay, respectively. The same took place with total feed conversion (3.22, 3.16, 3.38 and 4.16 kg DM/kg increase and 3.63, 3.54, 3.76 and 4.48 kg DM /kg increase) in both stages, respectively. It was demonstrated that the silage of alternative feeds of Cuban origin (AEC) substituted efficiently the imported maize for pig fattening when used up to 66 % with economical and environmental advantages.

Key words: maize, silage, pigs

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