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Arq. bras. med. vet. zootec ; 61(5): 1156-1164, out. 2009. tab, ilus
Article in Portuguese | LILACS | ID: lil-532028

ABSTRACT

Avaliaram-se o valor nutritivo e a temperatura de estabilidade aeróbia da cana-de-açúcar hidrolisada com hidróxido de sódio (NaOH) ou óxido de cálcio (CaO). Utilizou-se um esquema fatorial 2 × 4, com dois aditivos (NaOH e CaO) e quatro doses (0; 0,75; 1,5 e 2,25 por cento, com base na matéria natural), em delineamento inteiramente ao acaso com quatro repetições. O material foi acrescido dos aditivos e armazenado por 24 horas em baldes plásticos com capacidade de 10L. Ambos os aditivos controlaram o aumento da temperatura da cana-de-açúcar, e o NaOH mostrou-se mais eficiente. Os teores de matéria seca e matéria mineral aumentaram linearmente, enquanto os constituintes da parede celular diminuíram com o aumento das doses dos aditivos. Tanto o NaOH quanto o CaO promoveram acréscimo nos valores de digestibilidade da matéria seca da cana-de-açúcar. O NaOH e o CaO melhoram o valor nutritivo da cana-de-açúcar, e o NaOH é mais eficiente.


The nutritional value and the temperature of aerobic stability of the hydrolyzed sugarcane by sodium hydroxide (NaOH) or calcium oxide (CaO) were evaluated. The experiment was carried out in factorial arrangment 2×4, two additives (NaOH and CaO) and four doses (0; 0.75; 1.5; and 2.25 percent), in a completely randomized design with four repetitions per treatment. The material, after the addition of the additive, was stored per 24 hours in 10-L plastic pails. Both additives controlled the increase of temperature of sugarcane, but NaOH was more efficient. The dry matter and mineral matter contents lineally increased, while the cell wall contents decreased with the increase of the doses. Either NaOH or CaO promoted increment in values of sugarcane dry matter digestibility. NaOH and CaO improved the nutritional value of the sugarcane and NaOH was more efficient.


Subject(s)
Sodium Hydroxide/analysis , Nutritive Value , Calcium Oxide/analysis , Animal Feed/analysis , Saccharum/adverse effects , Aerobic Digestion/adverse effects , Ruminants
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