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Azevêdo et al., 1974. Rev. Bras. Zootec., 3 (2): 172-190

Document reference 
Azevêdo, A. R. de; Silva, J. F. C. da; Silva, D. J. da, 1974. Study of digestibility and correlation between digestible nutrients of Guatemala grass (Tripsacum fasciculatum Trin), elephant grass 'Napier' (Pennisetum purpureum Schum) and of silages of sorghum (Sorghum vulgare Pers) and of maize (Zea mays L.). Rev. Bras. Zootec., 3 (2): 172-190
Alternative title 

Estudo da digestibilidade e da correlação entre os nutrientes digestíveis do capim-guatemala (Tripsacum fasciculatum, Trin) e do capim-elefante "napier" (Pennisetum purpureum, Schum) e das silagens de sorgo (Sorghum vulgare, Pers) e de milho (Zea mays, L)


The proximate composition, apparent digestibility and correlations between TDN and digestibility of DM, OM, and energy of Guatemala grass and elephant grass at different stages of growth, and of maize silage and sorghum silage were studied in sheep. With Guatemala grass, digestibility of DM, CP, CF, NFE, ether extract, energy, OM and TDN decreased with increase in DM content. Digestibility and TDN of elephant grass varied significantly with DM content. In maize and sorghum silages, apparent digestibility of DM, CP, CF, NFE, energy, OM and TDN did not show any significant differences, but digestibility of ether extract of maize silage was higher than that of sorghum silage. It was shown that TDN can be estimated from digestibility of DM, OM and energy.

Citation key 
Azevêdo et al., 1974