Digestibilidade pré-cecal do amido de milho (Zea mays) e mandioca (Manihot esculenta Crantz) em equinos (Equus caballus)

Abstract

This study aimed to compare the pre-ceacal digestibility of diets with inclusion levels (0.4, 0.6 or 0.8% of BW) of starch (corn or cassava) for horse feeding. Were used seven mongrel horses, on Latin square (7x7) in a split-plot in time (seven horses, seven treatments). The experiment was conducted at Fazenda Antidio Colonel, Cavalry Platoon headquarters of the Military Police of Bahia, Brasil, Maria Quitéria district, Feira de Santana - Bahia. The variables assessed were glucose, peak glucose and increased glucose, the effect of individuality on blood glucose, peak glucose and glycemic increment, beyond Fecal pH. Cassava starch in 0.4% of BW in the diet, had induced (p <0.05) higher glycemic index in relation to the cornstarch with the same level of inclusion. The cornstarch in the level of 0.6% of BW, compared to cassava starch in the corresponding level, required more time for the return of blood glucose to normal horses. The animals 3 and 6 exhibited (p <0.05) the lowest glycemic responses, in ascending order, respectively. The levels of corn starch and cassava did not cause variations in faecal pH.