01646naa a2200229 a 450000100080000000500110000800800410001910000180006024500720007826000090015052010540015965000110121365000110122465000130123565000090124865300210125765300230127865300230130170000180132470000200134277300540136217863571995-09-27       1964    bl ---       0--  u    #d1 aHARKER, K. W.  aBotanical examination of forage from esophageal fistulas in cattle.  c1964  aThe microscopic point method of botanical analysis gave a satisfactory estimate of  spe- cies composition on a percent dry-weight bais in this two component mixed forage sample collected by the esophageal-fistula technique. The Y = X relationship was nearly as ac- curate as a linear, quadratic, or cubic regression equation through the origin for thiss par- ticular two-component mixture where Y = percent weight and X = percent points. Even though there were no significant differences among observes, thre was a significant wei- ght x man interaction. Two of the observers were more consistent and required one-half  as many points as the other two for the same degree of accuracy. Multiple comparison  test that estimates in one and possibly two weight groups were signifiantly different from the other groups. Four hundred points estimated percent dry matter at 90% confidence  limit to within 20% of the mean if the weight is 16 to 30%, to within 10% of the mean bet- ween 30 and 50% weight, and to within 5% of the mean from 50 to 95% weight.  acattle  aforage  aForragem  aGado  aAnalise botanica  aBotanical analysis  aEsophageal fistula1 aTORELL, D. T.1 aDYNE, G. M. van  tJournal of Animal Sciencegv.23, p.465-469, 1964.