Semipurified glycerins on starting piglets feeding (15-30 kg)
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Universidade Estadual de Maringá
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The nutritional value and the performance of piglets fed on diets with semipurified glycerin(SPGV) and mixed (SPGM) vegetable oil was determined and evaluated. Thirty-two crossbred piglets,allotted in a completely randomized block design, were used in the digestibility trial. Two types of glycerin(SPGV and SPGM) and three levels of diet (4, 8 and 12%) were studied. The experimental unit consistedof one piglet. Glycerins’ metabolizable energy (ME) was estimated by regression of ME (kcal kg-1) intakeassociated with glycerin vs. glycerin intake (kg). ME as-feed-basis rates were 3,373 for SPGV and 2,932 forSPGM, or rather, the glycerins are highly available energy source for piglets. In the performance trial, 90piglets were allotted in a completely randomized blocks design in a 2 x 4 + 1 factorial scheme, twoglycerins, four levels (3, 6, 9 and 12%), five replicates (pens) and two piglets per pen. A control diet with noglycerin (0%) was additionally formulated. Since no effect of glycerin inclusion on pig performanceoccurred, it was feasible to use up to 12% of both types of glycerin on piglets feeding.
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