Estudio in vitro de la fermentación ruminal de carbohidratos en cabra montés
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The 48 h fermentation pattern of pectin, xylan and cellulose from rumen contents of males (MM), females (MH) and kids (MJ) of Spanish Ibex (SI) and from domestic goats (CD) was studied. There were no differences (p>0.05) among SI inocula in total gas production at any incubation time. Gas volume was
higher (p<0.05) with all SI inocula than with CD, from 6 to 30 h, from 6 to 16 h and from 24 to 36 h with pectin, xylan and cellulose. The maximum rates of fermentation (ml/g per h) were manifested earlier and more abruptly for SI inocula with all substrates. Fermentative activity of rumen inocula from SI was not influenced by size or age of the donor animal, but it showed a higher level, with maximum rates at an earlier stage of incubation, than domestic goats.