ORIGINAL PAPER
Intraruminal administration of two doses of quebracho
tannins to sheep: effect on rumen degradation and total
tract digestibility, faecal recovery and toxicity
1
Estación Agrícola Experimental, Spanish Council for Scientifc Research (CSIC),
Apdo. 788, 24080-León, Spain
Publication date: 2004-01-14
Corresponding author
G. Hervás
Estación Agrícola Experimental, Spanish Council for Scientifc Research (CSIC), Apdo. 788, 24080-León, Spain
Estación Agrícola Experimental, Spanish Council for Scientifc Research (CSIC), Apdo. 788, 24080-León, Spain
J. Anim. Feed Sci. 2004;13(1):111-120
KEYWORDS
ABSTRACT
Nine rumen fistulated ewes fed lucerne hay were intra-ruminally dosed for a period of 51 days
with 0 (Q0), 35 (Q1) and 70 (Q2) g of quebracho condensed tannin (CT) extract/kg feed daily. Lucerne hay in situ DM, N and NDF 24 h disappearance were significantly lower (P<0.05) in those sheep
dosed with the highest level of quebracho extract (Q2) compared with the other two groups (Q0 and
Q1). The rumen ammonia-N concentration was also lower in groups treated with quebracho. Neither
of the doses affected in vivo DM, NDF or ADF digestibility. However, both reduced apparent CP digestibility (P<0.01). Faecal analyses showed a 30% recovery of the administered CT, regardless of
the dose (P>0.10). There were no signs of intoxication by tannins in any of the treatments.
CITATIONS (7):
1.
Feeding quebracho tannins to sheep enhances rumen fermentative activity to degrade browse shrubs
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Vasileios Bampidis, Giovanna Azimonti, Maria Bastos, Henrik Christensen, Durjava Fašmon, Maryline Kouba, Marta López‐Alonso, Puente López, Francesca Marcon, Baltasar Mayo, Alena Pechová, Mariana Petkova, Fernando Ramos, Yolanda Sanz, Roberto Villa, Ruud Woutersen, Paul Brantom, Andrew Chesson, Johannes Westendorf, Paola Manini, Fabiola Pizzo, Birgit Dusemund
EFSA Journal
Vasileios Bampidis, Giovanna Azimonti, Maria Bastos, Henrik Christensen, Durjava Fašmon, Maryline Kouba, Marta López‐Alonso, Puente López, Francesca Marcon, Baltasar Mayo, Alena Pechová, Mariana Petkova, Fernando Ramos, Yolanda Sanz, Roberto Villa, Ruud Woutersen, Paul Brantom, Andrew Chesson, Johannes Westendorf, Paola Manini, Fabiola Pizzo, Birgit Dusemund
EFSA Journal
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