Performance and methane emissions of Nellore steers grazing tropical pasture supplemented with lipid sources

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dc.contributor.authorCarvalho, Isabela Pena Carvalho de
dc.contributor.authorFiorentini, Giovani
dc.contributor.authorBerndt, Alexandre
dc.contributor.authorCastagnino, Pablo de Souza
dc.contributor.authorMessana, Juliana Duarte
dc.contributor.authorFrighetto, Rosa Toyoko Shiraishi
dc.contributor.authorReis, Ricardo Andrade
dc.contributor.authorBerchielli, Telma Teresinha
dc.date.accessioned2024-05-15T13:04:47Z
dc.date.available2024-05-15T13:04:47Z
dc.date.issued2016
dc.description.abstractABSTRACT The objective of this study was to evaluate the effect of lipid sources on voluntary intake, digestibility, performance, and CH4 emission of Nellore steers grazing Brachiaria brizantha cv. Xaraés forage in the dry season. Forty-five Nellore steers with average weight of 442±34 kg were alloted into one of the five treatments: without additional fat; with palm oil; with linseed oil; with protected fat; and with whole soybeans. The supplements were provided daily and quantities were adjusted to 1% of body weight and diets were formulated in accordance with the Cornell Net Carbohydrate and Protein System. The experimental design was completely randomized with five treatments and two replications. There were no effects on dry matter, organic matter, and neutral detergent fiber intake with the inclusion of lipids in the diet. The neutral detergent fiber showed decreased digestibility in animals receiving linseed oil and palm oil treatments compared with animals receiving the diet without additional fat. The linseed oil treatment reduced CH4 emissions by 38% when expressed in mg/d/kg BW and tended to reduce the emission in g/d/kg BW0.75. Lipid sources did not affect the weight gain of the animals. The intake and performance of grazing Nellore steers supplemented at 1% body weight with lipid sources were not modified. However, fiber digestibility was reduced with palm or linseed oil addition. Linseed oil reduced enteric CH4 emissions. Linseed oil has the potential to reduce enteric CH4 emissions in continuous tropical grazing systems based on B. brizantha grass.
dc.identifier.doi10.1590/s1806-92902016001200005
dc.identifier.issn1516-3598
dc.identifier.otherS1516-35982016001200760-scl
dc.identifier.urihttps://repositorio-aptaregional.agricultura.sp.gov.br/handle/123456789/1214
dc.relation.ispartofRevista Brasileira de Zootecnia
dc.subjectlinseed oil
dc.subjectpalm oil
dc.subjectprotected fat
dc.subjectsupplementation
dc.subjectwhole soybeans
dc.titlePerformance and methane emissions of Nellore steers grazing tropical pasture supplemented with lipid sources
dc.typeArtigos
oaire.citation.endPage767
oaire.citation.issue12
oaire.citation.startPage760
oaire.citation.volume45

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