%0 Generic %A Ferreira, J.J. %A Ruas, J.R.M. %A Macedo, G.A.R. %A Marcatti Neto, A. %A Queiroz, D.S. %A Silva, E.A. %D 2019 %T Substituition of urea for soybean meal and forced intake of minerals on the performance of growing crossbred calves %U https://scielo.figshare.com/articles/dataset/Substituition_of_urea_for_soybean_meal_and_forced_intake_of_minerals_on_the_performance_of_growing_crossbred_calves/10073678 %R 10.6084/m9.figshare.10073678.v1 %2 https://scielo.figshare.com/ndownloader/files/18158441 %2 https://scielo.figshare.com/ndownloader/files/18158444 %2 https://scielo.figshare.com/ndownloader/files/18158450 %2 https://scielo.figshare.com/ndownloader/files/18158456 %K calves %K corn silage %K minerals %K sugar cane %K weight gain %X

ABSTRACT Forty eight crossbred calves, 24 males and 24 females, with weight and age of 203.6±3.7kg and 11.8±1.0 months were allotted to the following treatments: MT- mineral salt ad libitum and sugar cane mixed with 10g kg-1 mixture of urea and ammonium sulfate in a 9:1 proportion; MA - sugar cane mixed with 16g kg-1 of a concentrate of urea (550g kg-1), ammonium sulfate (60g kg-1) and minerals (390g kg-1); SU - sugar cane mixed with 50g kg-1 of a concentrate of soybean meal (830g kg-1), urea (52g kg-1) and minerals (118g kg-1) and MC - corn silage mixed with 10g kg-1 of a concentrate of urea (500g kg-1), ammonium sulfate (50g kg-1) and minerals (450g kg-1). Minerals mixed with sugar cane (MA) resulted in greater weight gain (0.258 x 0.188kg d-1) for similar intakes of DM (3.29 x 3.30kg d-1). Substitution of part of urea nitrogen in the MA by soybean meal (SU) resulted in greater ADG (0.538 x 0.258kg d-1), due to higher sugar cane intake (4.10 x 3.13kg d-1). ADG of calves receiving corn silage was greater (0.406 x 0.258kg d-1) than for calves receiving sugar cane.

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