Nutritional value and effective degradability of crude protein in Browse species from northeastern Mexico
2003
Rodriguez, J.G.M. | Ramirez, R.G. | Foroughbakhch, R. (Universidad Autonoma de Nuevo Leon, Leon (Mexico). Facultad de Ciencias Biologicas)
Leaves from the shrubs Acacia wrightii, Bumelia celastrina, Castela texana, Forestiera angustifolia, Karwinskia humboldtiana, Larrea tridentata, Schaefferia cuneifolia and Zanthoxylum fagara were evaluated to determine their chemical composition and degradability parameters. The in situ technique was use dto estimate effective degradability of crude protein (EDCP), using rumen fistualated sheep. The crude protein (CP) content varied within range of 15 to 22 per cent. The NDF content (annual means) in all evaluated browse plants was lower than Medicago sativa hay (49 per cent). However, the lignin content in browse plants was high. In general, during autumn were low. With exception of B. celastrina and L. tridentata, all the shrubs had EDCP values higher or comparable to M. sativa. Thus, the rest of the evaluated shrubs may be termed as important protein sources for small grazing ruminants.
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Эту запись предоставил Indian Council of Agricultural Research