CRUDE GLYCERIN IN DIETS FOR PIGLETS IN NURSING PHASE

Abstract

This study evaluated the inclusion of crude glycerin for piglets in the starter phase. In the performance assay, we used 80 barrows, with initial weight of 6.64 ± 0.8 kg. The experimental design was of randomized blocks and the treatments consisted in 0%, 2%, 4% and 6% of crude glycerin. There was a quadratic effect on final weight, average daily gain and feed intake, the maximum inclusion of crude glycerin was of 2.77%, for higher daily intake. For the ADG, the level of 2.76% of crude glycerin allowed the best gain and final weight, despite any effect on food conversion. There was a significant effect on the incidence of diarrhea (p=0.014) when 2% of crude glycerin was included in the diet. There was a linear decreasing effect on the percentage of GIT (p=0,006), small intestine (p=0,038), kidneys (p=0,089) and liver (p=0,037) of piglets that did not have glycerin in the diet. We observed a quadratic effect on the relative weight of the spleen and pancreas of piglets, the level of 2.73% of crude glycerin resulted in lower pancreas weight, and 3.04% of glycerin increased spleen weight. The level of 2.76% of crude glycerin promotes the highest weight gain for piglets in the nursery phase. Keywords: digestibility; glycerol; performance; pig.

Keywords

• desempenho, digestibilidade, glicerol, suíno