| Autor: |
J.J. Ferreira, J.R.M. Ruas, G.A.R. Macedo, A. Marcatti Neto, D.S. Queiroz, E.A. Silva |
| Jazyk: |
English<br />Portuguese |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 71, Iss 5, Pp 1677-1685 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
1678-4162 |
| DOI: |
10.1590/1678-4162-10419 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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