Uso do tanino em ração para ovinos: avaliação nutricional

Abstract

Tannins are considered secondary metabolites of plants and have the ability to form complexes with proteins. It may or may not lead to beneficial effects, depending on the concentration of tannin present in the plant. The beneficial effects involve better use of protein and increased microbial synthesis efficiency. Through nutritional assessment, it is possible to check the adequacy of the nutrients absorbed and whether there is any harm to the animal. Furthermore, it is relevant for the control of gastrointestinal parasites by preventing the parasite cycle and leading to a reduction in the use of anthelmintics to control worms in ruminants. This experiment was conducted at Fazenda Capim Branco belonging to the Federal University of Uberlândia (UFU). The experiment used 21 Dorper x Santa Inês lambs and lasted 20 days, where 15 days were for adaptation and five days for collection. were Control, Silvafeed® Bypro condensed tannin and Silvafeed® BX condensed tannin, where only Silvafeed® BX has the presence of saponin. The effects of tannin on consumption, digestibility, fecal and urinary excretion and parasite control were evaluated. The animals had higher DMI, with protein consumption being higher than recommended. There were no significant differences between the Famacha and ECC methods. BX tannin was statistically superior to CMSPC and CMSPM, along with greater digestibility.