02243naa a2200265 a 450000100080000000500110000800800410001902400540006010000180011424501380013226000090027052014130027965000140169265000210170665000230172765000200175065000310177065000200180165000150182165000140183665000190185065300170186970000180188677300730190415225782023-06-06       1976    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1016/0377-8401(76)90008-02DOI1 aMcLEOD, M. N.  aThe analytical and biological accuracy of estimating the dry matter digestibility of different legume species.h[electronic resource]  c1976  aAbstract: A comparison was made of the accuracy of 7 laboratory techniques for estimating dry matter digestibility in vivo of 5 legume species represented by 32 samples of known digestibility in vivo. The legumes studied were Desmodium spp., Lablab purpureus, Macroptilium atropurpureum, Vigna sinensis and Medicago sativa. Regressions were calculated relating digestibility in vivo to the laboratory analysis, and the residual standard deviation (RSD) of these regressions was used to calculate the error in predicting digestibility in vivo. For regressions based on all 32 samples the RSD's were: modified acid detergent fibre ± 2.1, acid detergent fibre ± 2.2, dry matter digestibility in vitro ± 2.7, crude fibre ± 3.7, feed nitrogen ± 4.0, Christian's lignin ± 2.8, and Van Soest's Lignin ± 3.7 digestibility units. The cause of the high RSD of these regressions was discussed and it was concluded that it was mainly associated with differences between legume samples grown in different ways, analytical error being only ± 0.5 percentage units or less and the estimation of digestibility in vivo ± 0.7 percentage units. It was concluded that the error in predicting digestibility in vivo from a laboratory analysis is best expressed as the RSD of regressions relating digestibility in vivo to the laboratory analysis, and that this error will not be materially altered by increased replication.  aDesmodium  aLablab purpureus  aRuminant nutrition  aDigestibilidade  aMacroptilium Atropurpureum  aMedicago Sativa  aNutrição  aRuminante  aVigna Sinensis  aFeed legumes1 aMINSON, D. J.  tAnimal Feed Science and Technologygv. 1, n. 1, p. 61-72, Apr. 1976.