01841naa a2200313 a 450000100080000000500110000800800410001910000170006024500710007726000090014852010230015765000210118065000090120165000100121065000230122065000230124365000120126665000100127865000220128865000140131065300200132465300190134465300310136365300090139465300240140365300230142770000170145077300600146715147642021-09-08       1995    bl uuuu     u00u1 u    #d1 aLEITE, E. R.  aFecal NIRS equations to assess diet quality of free-ranging goats.  c1995  aAbstract: Research was conducted to evaluate the predictability of the nutritional status of free-ranging goats through analysis of fecal materrial by near infrared reflectance spectroscopy (NIRS). Diet samples were collected from esophageally fistulated goats, whereas fecal samples were obtained from nonfistulated animals grazing the study areas. Percentage of crude protein (CP) and standard corrected in vitro digestible organic matter (DOM) were determined for diet samples. The resulting diet reference data and the fecal spectra were used to develop predictive equations. Standard errors of calibration (SEC) for CP and DOM were 1.12 and 2.02, being within acceptable limits for NIRS. Coeficients of determination (R2), were 0.94 and 0.93 for CP and DOM, respectively. Validation trials, performed in post oak woodlands and subtropical thornsrub regions of Texas, indicated that the selected CP and DOM equations can be useful in predicting the nutritional status of goats under different rangeland conditions.  aAnimal nutrition  aDiet  aGoats  aNutritional status  aRuminant nutrition  aCaprino  aDieta  aNutrição animal  aQualidade  aEquação fecal  aFecal equation  aInfrared spectrophotometry  aNIRS  aNutrition precision  aStatus nutricional1 aSTUTH, J. W.  tSmall Ruminant Researchgv. 15, n. 3, p. 223-230, 1995.