Valor nutritivo do feno proveniente de diferentes estádios de crescimento da cultura de soja perene (Glycine javanica)

An experiment was conducted to determine the nutritive value of perennial soja hay, cut in three different stages of plant growth; vegetative, start of blooming and full bloom. Hay from the first two stages had higher crude protein than alfafa with the same crude fiber content. No significant difference (p<0,05) was detected among the digestibility coefficients of crude protein of hay from the three stages studied. The TDN was highest for the full bloom stage. The highest digestible crude protein content and the narrowest nutritive ratio were observed in hay cut in the vegetative stage. Hay from perennial soja cut at all three stages of growth produced weight gain in all animals.Foi feito um experimento com a finalidade de se estudar o valor nutritivo do feno de soja perene colhida em diferentes estádios de crescimento, estádios vegetativo, de inicio de floração e de plena floração. Os fenos correspondentes aos dois primeiros estádios se mostraram com valores maiores de proteína bruta do que a alfafa com o mesmo teor de fibra bruta. Não houve diferença significativa (p