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Abanico veterinario
versión On-line ISSN 2448-6132versión impresa ISSN 2007-428X
Resumen
MURILLO-AYALA, Eva et al. Gas production in bovine feces adding tannins directly or on the diet. Abanico vet [online]. 2019, vol.9, e912. Epub 05-Mar-2021. ISSN 2448-6132. https://doi.org/10.21929/abavet2019.912.
Two experiments were carried out to know the effect of tannin extracts (ET) in gas production. In experiment 1, feces were collected from five bulls (420 ± 10 kg) from the same pen for four consecutive days to have one sample per day, 100 g of the feces were placed in flasks of 600 mL for each sample and the samples were added. following treatments: TE) untreated stool and HT) 7.4% condensed ET. In experiment 2 the following treatments were applied: TES) diet without ET, TC) 0.6% of condensed tannins and TH) 0.6% of hydrolysable tannins to the diet of 18 calves (220 ± 9 kg) for 28 days. In both experiments, the stools obtained were incubated for 24 h to measure their gas production by displacement. The data obtained from gas were compared with Experimental design of random blocks to eliminate the day-sampling effect. In the first experiment, gas production decreased 44% (P <0.001) with tannin extracts added to the feces, but added through the diet, there were no differences between the treatments.
Palabras llave : tannins extract; feces; gas production; beef-cattle.