Produção e composição bromatológica de quatro hibrídos de sorgo forrageiro [sorghum bicolor (l.) moench] submetidos a três doses de nitrogênio
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Data
2006-03
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Editor
José Henrique Stringhini
Resumo
This experiment was carried out to evaluate the
potential of forage production of four hybrids of sorghum
and its bromatological composition. The experiment was
conducted in the Veterinary School/UFG in a completely
randomized design in factorial scheme 4x3 (hybrids x nitrogen
doses - 50, 75 and 100kg N/ha). The data were analyzed
using Sisvar statistical program (FERREIRA, 2000), and the
Tukey test (P<0,05) used for mean comparison. The
production of forage (FP) and the percentage of dry matter
(DM) differed (P <0.05) among the hybrids, averaging 59.31
t/ha and 26.72%, respectively. DM differed in function of
the applied doses of nitrogen. The Crude Protein (CP), neutral
detergent fiber (NDF), acid detergent fiber (ADF) and total
digestible nutrients (TDN) content differed (P <0.05) for all
hybrids, and the means were 6.73; 47.26; 38.52 and 64.25%,
respectively. In relation to the nitrogen doses used, CP differed between hybrids CMSXS 762 and BR 700, with
averages of 7.77 and 7.32%. No difference (P > 0.05) was
observed for ADF and TND, and the means were 38.52 and
64.76%, respectively. In relation to the minerals, the Ca
concentration differed just for hybrid BR 700, while P differed
between hybrids BRS 610 and BR 506. For the micronutrients,
Zn and Mn differed (P <0.05) among all the hybrid ones,
and for Cu just in hybrid BRS 610. Hybrid BR 506 presented
the best productive potential, but the protein value was
smaller. The hybrids attended the nutritional requirements
of cattle, except Zn and CP for BR 506.
Descrição
Palavras-chave
Adubação nitrogenada, Composição, Produção, Sorgo forrageiro, Composition, Forage sorghum, Nitrogen fertilization, Production
Citação
RODRIGUES FILHO, Osvaldo; FRANÇA, Aldi Fernandes de Souza; OLIVEIRA, Regis de Paula; OLIVEIRA, Euclides Reuter de; ROSA, Beneval; SOARES, Tatiana Vieira; MELLO, Susana Queiroz Santos. Produção e composição bromatológica de quatro híbridos de sorgo forrageiro [sorghum bicolor (l.) moench] submetidos a três doses de nitrogênio. Ciência Animal Brasileira, Goiânia, v. 7, n.1, p. 37-48, jan./mar. 2006. Disponível em: <https://www.revistas.ufg.br/vet/article/view/389/364>.