EFFECT OF ZEOLITE ON SWILL DIETS AND CONCENTRATE FEED WITH SACCHARINAFOR FATTENING PIGS

One hundred and twenty pigs from the Duroc Yorkshire x Hampshire cross bred with an initial live weight of 30 kg were used to study the effec t including zeolite in diets of Feed with Saccharina and swill for fat tening pigs by a completely randomized design. Animals were distribute d in 5 treatments: 1) feed with Saccharina without zeolite; 2) 95 % of the feeding standard with Saccharina + 5 % f zeolite; 3) 100 % of the feeding standard with Saccharina + 5 % of zeolite; 4) 90 % of the fee ding standard with Saccharins + 10 % of zeolite and 5) 100 % of the fe eding standard with Saccharins + 10 % of zeolite. Differences in perfo rmance were not found with respect to the treatments where the feed wa s replaced by zeolite. When the treatment with 100 % of the standard 5 % zeolite was applied the live weight daily gain improved significa ntly as well as the conversion with respect to the control. It is conf irmed that 5 % zeolite is an adequate level for this type diet and its inclusion may be either by substitution by addition to the type of fe ed used.