| Journal: | Revista ciencia agronomica |
| Database: | PERIÓDICA |
| System number: | 000321263 |
| Authors: | Pereira, Elzania Sales1 Carneiro, Maria Socorro de Souza1 Cavalcante, Maria Andrea Borges Villarroel, Arturo Bernardo Selaive1 Pimentel, Patricia Guimaraes1 |
| Institutions: | 1Universidade Federal do Ceara, Departamento de Zootecnia, Fortaleza, Ceara. Brasil |
| Year: | 2008 |
| Season: | Oct-Dic |
| Volumen: | 39 |
| Number: | 4 |
| Pages: | 603-608 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The objective of the present study was to evaluate ruminal degradation of the dry matter (DM) and crude protein (PB) of corn hybrids silages DKB 440, DOW 8550, AG1051, 2C-599, CDX-D60. The in suit disappearance of DM and CP was evaluated by the nylon bag technique using fi stulated Holstein bulls rumens in times of 0; 6; 12; 24; 48; 96 and 144 hours. The estimates of effective degradation of DM were 48.27; 44.03; 40.67; 40.88; 42.34%, and for the effective degradation of the PB had been: 58.31; 57.17; 66.30; 68.47 and 72.42%, respectively, assuming 5% hour rumen outfl ow rate. The kinetic parameters of the degradation of DM and PB of the silages of the different corn hybrids had been similar |
| Portuguese abstract | Objetivamos avaliar a degradação ruminal da matéria seca (MS) e proteína bruta (PB) de silagens produzidas com os híbridos de milho DKB400, DOW850, AG1051, 2C-599 e CDX-D60. As degradações in situ da MS e PB das silagens foram avaliadas pela técnica de sacos de náilon, usando novilhos holandeses fi stulados no rúmen, nos tempos de 0; 6; 12; 24; 48; 96 e 144 horas. As estimativas de degradação considerando a taxa de passagem de 5% por hora para MS foram de 48,27; 44,03; 40,67; 40,88 e 42,34% e, para as degradabilidades efetivas da PB, foram de 58,31; 57,17; 66,30; 68,47 e 72,42%, respectivamente. Concluiu-se que os parâmetros cinéticos da degradação da MS e PB das silagens dos diferentes híbridos de milho foram similares |
| Disciplines: | Medicina veterinaria y zootecnia, Agrociencias |
| Keyword: | Nutrición animal, Gramíneas, Maíz, Ensilado, Degradación ruminal, Proteína bruta, Materia seca |
| Keyword: | Veterinary medicine and animal husbandry, Agricultural sciences, Animal nutrition, Gramineae, Corn, Silage, Ruminal degradation, Raw protein, Dry matter |
| Full text: | Texto completo (Ver HTML) |
