Vpliv kostanjevega ekstrakta (Farmatan®) na prebavljivost in izkoristljivost dušika in nekaterih mineralov pri laboratorijskih podganah

Tatjana PIRMAN, Andrej OREŠNIK

Povzetek


V raziskavi smo proučevali učinek hidrolizirajočih taninov iz kostanja na prebavljivost in neto izkoristljivost beljakovin, navidezno prebavljivost suhe in organske snovi ter navidezno prebavljivost in izkoristljivost nekaterih mineralov. V poskus je bilo vključenih deset Wistar podgan moškega spola (98,9 g ± 25,6 g telesne mase), ki so dobivale uravnoteženo krmo po volji. V poskusno krmno mešanico smo dodali 0,1 % kostanjevega ekstrakta. Najprej je bilo 15 dnevno predposkusno obdobje, ki mu je sledil petdnevni bilančni poskus. Kostanjev ekstrakt ni imel vpliva na izmerjene parametre kakovosti beljakovin ali navidezno prebavljivost suhe in organske snovi. Tanin je statistično značilno (p < 0,05) zmanjšal navidezno prebavljivost in navidezno izkoristljivost Ca in Fe. Navidezna prebavljivost Na je bila podobna (97,76 % in 97,31 % v kontrolni oz. poskusni skupini). Navidezna izkoristljivost Na je bila statistično značilno manjša v poskusni skupini (53,16 %) v primerjavi s kontrolno skupino (74,17 %). Nasprotno je bila navidezna prebavljivost Se statistično značilno boljša v poskusni skupini (64,52 %) v primerjavi s kontrolno skupino (52,31 %).

Ključne besede


fiziologija živali; prebavljivost; izkoristljivost; beljakovine; minerali; tanin; laboratorijske podgane

Celotno besedilo:

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Literatura


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DOI: http://dx.doi.org/10.14720/aas.2016.108.1.2

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