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<strong>Revista</strong> Computadorizada <strong>de</strong> Producción Porcina Volúmen 7 Número 3 (2000) NITROGEN AND ENERGY BALANCE IN PIGS FED JERUSALEM ARTICHOKES (Helianthus tuberosus L.) J. Ly Swine Research Institute PO Box 1, Punta Brava, Havana, Cuba Email: iip00@ceniai.inf.cu SUMMARY Ten castrated male crossbred pigs of approximately 40 kg live weight were used to study the effect of feeding either Jerusalem artichokes (Helianthus tuberosus L.) tubers given in natura, or refined sugar as the only source of energy on N and energy balance, according to a balanced two-period change over <strong>de</strong>sign. Soybean meal was used as the only protein source in the diet. The inclusion of fresh and whole Jerusalem artichokes in the diet for pigs significantly (P
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