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BILL, TRUE. A true bill is an indictment approved of by a grand jury. Vide Billa Vera; True Bill.

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True Digestibility (%)###93.16+-5.26a###86.98+-2.88ab###83.78+-1.4b###0.0456
The true digestibility, net protein utilization, concentration of essential amino acids and dietary fiber were significantly improved due to inclusion of flaxseed in the diets.
In vitro true digestibility, which is defined as the theoretical maximum digestibility, was consistent among cultivars for the December through March harvest dates (Table 3).
Statistics for near infra-red reflectance spectroscopy (NIRS) calibration and prediction of neutral detergent fiber (NDF), acid-detergent fiber (ADF), in vitro true digestibility (IVTD), and protein of corn forage and stover.
Analysis of variance comparing 10 genotypes, under two N rates, for forage DM yield (FDM), forage N accumulation (FNA), forage N concentration (FNC), leaf weight ratio (LWR), root weight ratio (RWR), total biomass DM yield (TBDM), total biomass N accumulation (TBNA), total biomass N concentration (TBNC), neutral detergent fiber (NDF), in vitro true digestibility (IVTD) and in vitro cell wall digestibility (IVCWD).
Summary of effects from analysis of variance for bale characteristics and nutritive value of annual ryegrass (Lolium multiflorum Lam.) harvested at booting, heading, and anthesis stages Bale Bale DM WSC CP weight density Bale location (BL) (1) ns ns ns ns ns Storage (ST) <0.01 <0.01 ns <0.001 <0.001 BLxST <0.05 <0.05 ns <0.001 ns ADIN to ADF NDF IVTD total N Bale location (BL) (1) ns ns ns ns Storage (ST) <0.05 <0.001 <0.001 <0.001 BLxST ns ns ns ns DM, dry matter; WSC, water soluble carbohydrate; CP, crude protein; ADIN, acid detergent insoluble nitrogen; ADF, acid detergent fiber; NDF, neutral detergent fiber; IVTD, in vitro true digestibility; ns, not significant.
Means of cell solubles, digestible fiber, indigestible fiber, true digestibility, rate of fiber digestion, and digestion lag time for three amaranth accessions at different harvest dates.
Formation of complexes between polyvinily pyrorolidones or polyethylene glycols and their implication in gas production and true digestibility in vitro techniques.
Means for true digestibility, neutral detergent fiber, and 72-h extent of fiber digestion of leaf blades and leaf sheaths from vegetative swards of six switchgrass populations grown at Ames, IA, and Mead, NE, during 1993.
Digestibility of nutrients can be defined as apparent, standardized, or true digestibility (Stein et al., 2007).
Effects of selection (means of selected populations minus standards) measured on three variables (ADF = acid detergent fiber, IVTD = in vitro true digestibility, and CP = crude protein concentration) of alfalfa at two locations under three management systems (Vaughn et al., 1990).
Digestibility: At 24 and 48 h post inoculation a set of samples were tested for in vitro true digestibility (TD) according to Van Soest and Robertson (1985).