02699naa a2200361 a 450000100080000000500110000800800410001902400520006010000160011224501520012826000090028052016500028965000220193965000160196165000090197765000130198665000140199965000100201365000140202365000120203765000140204970000210206370000240208470000170210870000180212570000230214370000230216670000160218970000220220570000210222770000230224877300660227121550632023-07-19       2021    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1007/s11250-021-02712-42DOI1 aLEAL, E. S.  aCombinations of by-products from biodiesel production included in the supplement for finishing heifers on deferred pastures.h[electronic resource]  c2021  aWe hypothesized that by-products from biodiesel production like crambe meal (Crambe abyssinica) totally replace soybean meal (Glycine max) and crude glycerin could partially replace corn (Zea mays). Our aim was to evaluate different supplements with combinations of crambe meal and crude glycerin replacing soybean meal or corn on performance and carcass traits of finishing heifers. Sixty Nellore heifers 18 months old were used, and 298.96 ± 21.99 kg of body weight allotted in Brachiaria brizantha pastures. All heifers were distributed in a randomized complete block design, with four treatments being the following supplements: corn + soybean meal (CS), corn + crambe meal (CCr), corn + soybean meal + crude glycerin (CSG), corn + crambe meal + crude glycerin + (CCrG). The animals were distributed in four paddocks of 13 hectares each, in a continuous grazing system. We evaluated pasture characteristics, intake, performance, carcass traits, characteristics, and centesimal composition of Longissimus thoracis muscle. There was an effect (P &lt 0.05) of inclusion of crambe meal on the performance of the animals for slaughter weight and daily gain. The supplement containing corn + soybean meal (CS) presented better conversion rates and food efficiency. There was an effect of inclusion of crambe meal and crude glycerin on the centesimal composition of Longissimus thoracis muscle. The use of crambe meal and crude glycerin as alternative sources from the agro-industry of biodiesel in concentrate supplement for finishing heifers in pastures can promote positive effects related to productive performance and carcass characteristics.  aCrambe abyssinica  aCrambe meal  aMeat  aPastures  aRuminants  aCarne  aGlicerina  aNovilho  aRuminante1 aÍTAVO, L. C. V.1 aÍTAVO, C. C. B. F.1 aNOGUEIRA, E.1 aFRANCO, G. L.1 aGOMES, M. de N. B.1 aDIFANTE, G. dos S.1 aDIAS, A. M.1 aPEREIRA, M. W. F.1 aGURGEL, A. L. C.1 aMELLO, J. A. T. de  tTropical Animal Health and Productiongv. 53, 262, Apr. 2021.