Glucose, sirop de glucose à haute teneur en fructose (S.G.H.T.F.), ou saccharose dans les aliments de sevrage précoce du porcelet : influence sur l'agglomération et l'appétibilité

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Abstract
The effect of incorporating sweet substances (HFCS) into piglet feeds on palatability was measured during 4 experiments using 252 animals weaned at 35 days and 80 animals weaned at 21 days. The incorporation of sucrose reduced the pelleting yield and use of 5% HFCS increased the rate of passage of the feeds at pelleting. With 10% HFCS, the hardness of the pellets decreased from 3.6 bar cm-1 to 1.9 bar cm-1. When the animals had a choice of 3 diets containing 5% sucrose, 5% glucose or 5% starchy substances + saccharin, their daily mean intake was 412, 71 and 141 g, respectively. The animals preferred sucrose-containing feeds. When increasing levels of HFCS were incorporated into the diets, the animals still preferred those containing the sucrose. HFCS was not as palatable as sucrose although their molecular composition was similar. The palatability ratio only represented 0.69 for the piglets weaned at 5 wk vs. 0.48 for those weaned at 3 wk. When only 1 diet was available for each group of piglets, no difference was observed between glucose and sucrose.

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