Título:	Effect of bromoform-based feed additive on methane emissions and performance of Nellore cattle in feedlot backgrounding and finishing phases.
Autoria:	SILVA, M. M. MESSANA, J. D. KIRCHHOFF, A. M. GERMANO, J. V. de P. GIAMPIETRO JÚNIOR, F. E. RIGOBELLO, I. L. ALVAREZ-HESS, P. S. JACQUES, S. TOGNELLI, R. COSTA, D. F. A. BERNDT, A. REIS, R. A.
Afiliação:	MATHEUS MELLO SILVA, UNIVERSIDADE ESTADUAL PAULISTA JÚLIO DE MESQUITA FILHO; JULIANA DUARTE MESSANA, UNIVERSIDADE ESTADUAL PAULISTA JÚLIO DE MESQUITA FILHO; ARTHUR MENDES KIRCHHOFF, UNIVERSIDADE ESTADUAL PAULISTA JÚLIO DE MESQUITA FILHO; JOÃO VICTOR DE PAULA GERMANO, UNIVERSIDADE ESTADUAL PAULISTA JÚLIO DE MESQUITA FILHO; FÁBIO EDUARDO GIAMPIETRO JÚNIOR, UNIVERSIDADE ESTADUAL PAULISTA JÚLIO DE MESQUITA FILHO; IZABELA LAROSA RIGOBELLO, UNIVERSIDADE ESTADUAL PAULISTA JÚLIO DE MESQUITA FILHO; PABLO SALVADOR ALVAREZ-HESS, RUMIN8; SILKE JACQUES, RUMIN8; RENATA TOGNELLI, UNIVERSITY OF MELBOURNE; DIOGO FLEURY AZEVEDO COSTA, UNIVERSIDADE DE SÃO PAULO; ALEXANDRE BERNDT, CPPSE; RICARDO ANDRADE REIS, UNIVERSIDADE ESTADUAL PAULISTA JÚLIO DE MESQUITA FILHO.
Ano de publicação:	2026
Referência:	Translational Animal Science, v. 10, n. 1, txag057, 2026.
Conteúdo:	This study evaluated the effects of a bromoform based feed additive (BBFA) on growth performance and enteric methane emissions in Nellore cattle during feedlot backgrounding and finishing phases. Ninety-six Nellore bulls (10 +/- 2 mo old, body weight (BW) 315 +/- 23 kg (block 1), and BW = 360 + 7 kg [block 2]) were allocated to 1 of 2 treatments: CONTROL (basal diet) and BBFA (basal diet plus BBFA [to target 23 mg bromoform/kg dry matter]). Bulls were housed in pens (n = 6 animals/pen) and monitored over 218 d (108 d backgrounding, 110 d finishing). Performance parameters were measured in all bulls, while enteric methane emissions were assessed in a subset of 36 animals using the sulfur hexafluoride (SF6) tracer technique. Supplementation of the BBFA did not influence dry matter intake (DMI), weight gain or feed efficiency (P > 0.05). Compared with control, BBFA decreased methane production and yield by 26% and 25%, respectively, during backgrounding (P < 0.001). While, in the finishing phase, BBFA supplementation resulted in reductions of 58% in methane production, 59% in yield, and 60% in intensity (P < 0.001). These findings demonstrate the potential to supplement the BBFA throughout the lifecycle of cattle in Brazil, reducing methane emissions without any detrimental impacts on productivity.
Thesagro:	Gado de Corte Gado Nelore Metano
NAL Thesaurus:	Feed additives Methane Nellore Cattle Greenhouse gas emissions Greenhouses Ruminant nutrition
ISSN:	2573-2102
Digital Object Identifier:	https://doi.org/10.1093/tas/txag057
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPPSE)