Diurnal variation in fecal concentrations of acid-detergent insoluble ash and alkaline-peroxide lignin from cattle fed bermudagrass hays of varying nutrient content

Table 2 Comparison of in vivo dry matter digestibility (DMD, g/kg DM) and fecal output (FO, g/d) with estimates obtained by two internal markers using the mean of 4 fecal grab samples per day

^aADIA, acid-detergent insoluble ash; APL, alkaline-peroxide lignin. Each value represents the mean from four grab samples per day (06:00, 12:00, 18:00, and 24:00 h)
^bFO, fecal output; DMD, dry matter digestibility
^cTC, total fecal collection
^dSEM, standard error of the mean
^eD, diet effect; M, marker effect; D × M, diet by marker interaction
^fD, diet consisted of low (L) CP hay (CP = 79 g/kg DM); medium low (ML) CP hay (CP = 111 g/kg DM); medium high (MH) CP hay (CP = 131 g/kg DM); and high (H) CP hay (CP = 164 g/kg DM)

ISSN: 2049-1891