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dc.contributor.authorBodas, Raúl-
dc.contributor.authorLópez, Secundino-
dc.contributor.authorRodríguez, Ana Belén-
dc.contributor.authorAndrés, Sonia-
dc.contributor.authorMantecón, Ángel R.-
dc.contributor.authorGiráldez, Francisco Javier-
dc.identifier.citationAnimal Production Science 50(1): 45-51 (2010)es_ES
dc.description7 páginas, 5 tablas, 1 figura.es_ES
dc.description.abstractThirty-six Merino lambs (8-9 weeks of age and 15.3 +/- 0.13 kg of initial liveweight) were used to evaluate the effects of the inclusion of 120 g sugar beet pulp (replacing barley) and the addition of 20 g sodium bicarbonate per kg concentrate on feed intake, digestibility, animal performance and carcass characteristics in fattening lambs. Animals were housed individually and fed barley straw and the corresponding experimental concentrate feed ad libitum [ basal diet composed of (g/kg) barley (500), maize (230), soybean meal (190), molasses (50) and vitamin premix (30)]. Faeces were collected for 5 days to estimate digestibility. Lambs were slaughtered when they reached 25 kg liveweight. Carcasses were chilled at 4 degrees C for 24 h, some carcass dimensions were calculated, the left carcass was jointed into commercial cuts and shoulder tissue composition determined. Sugar beet pulp decreased DM intake (P < 0.05) and average daily gain (P < 0.001), increasing feed : gain ratio (P < 0.001), whereas sodium bicarbonate increased neutral detergent fibre digestibility (P < 0.05) and average daily gain, reducing the feed : gain ratio (P < 0.05). Carcass characteristics were not affected (P > 0.05) by either sodium bicarbonate or sugar beet pulp. Replacing barley with 120 g sugar beet pulp/kg concentrate caused a decrease in DM intake and average daily gain, resulting in an increase in feed : gain ratio, with no detrimental effect on carcass characteristics. The addition of 20 g sodium bicarbonate/kg concentrate improved intake and animal performance without affecting carcass characteristics. Inclusion of sugar beet pulp as a replacement for barley in high-concentrate diets for fattening lambs did not produce performance responses similar to those observed by adding a buffering salt.es_ES
dc.description.sponsorshipRaúl Bodas gratefully acknowledges receipt of a scholarship from the Ministry of Education and Science (MEC, Spain), under the programme FPU.es_ES
dc.publisherCSIRO Publishinges_ES
dc.subjectSugar-beef pulpes_ES
dc.subjectSodium-bicarbonate supplementationes_ES
dc.subjectHigh-concentrate dietses_ES
dc.subjectSubcutaneous adipose-tissuees_ES
dc.subjectIntensively reared lambses_ES
dc.subjectRumen fermentationes_ES
dc.subjectProductions systemses_ES
dc.titleFeed intake, digestibility, and carcass characteristics of lambs fed a diet supplemented with soluble fibrees_ES
dc.description.peerreviewedPeer reviewedes_ES
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