The objective of this study was to evaluate ruminal degradability and intestinal digestibility of crude protein (CP) and amino acids (AA) in hempseed cake (HC) that were moist heat treated at different temperatures. Samples of cold-pressed HC were autoclaved for 30 min at 110, 120 or 130°C, and a sample of untreated HC was used as the control. Ruminal degradability of CP was estimated, using th...

The objective of this work was to describe a novel in vitro system based on the subtraction of ammonia pools obtained with and without rumen fluid inoculum to determine the soluble protein fraction of feeds and their degradability, with adjustments for microbial contributions and bacterial contamination. Four corn-milling coproducts were used in this study as random factors. The feeds (Fd) were...

resistance of microencapsulated fish oil (mfo) in the rumen and its effects on fermentability of nutrients in the rumen was studied in 3 experiments. the key parameter in these studies was the amount of oil released from the microcapsules and their effects on gas production and rumen degradability in comparison with unprotected fish oil (fo). in the first experiment the effect of rumen and abom...

The study set out to examine the effects of supplementing grass silage with various levels of protein concentration and degradability on dietary nitrogen (N) excretion in lactating dairy cows consuming at least 60% forage. Six Holstein/Friesian cows in early to midlactation were offered six diets comprising two levels of crude protein (210 and 290 g/kg DM) and three levels of protein degradabil...

The objective of the study was to evaluate effect forages Gliricidia sepium (T1), Leucaena leucocephala (T2)), Moringa oleifera (T3), Morus alba (T4), Tithonia diversifolia (T5) on rumen function. For each treatment, nutritional quality, digestion, degradability, CH 4 gas production, CO2, holotric and entodinomorphic protozoa were analyzed. It found in T4 greater digestibility DM (P = 0.0002) M...

The degradability of ground hardwood by thermophilic anaerobic bacteria (Clostridium thermocellum with or without Thermoanaerobacter strain B6A) was greatly enhanced by pretreatment of the substrate with supercritical ammonia. Relative to C. thermocellum monocultures, cocultures of C. thermocellum and Thermoanaerobacter strain B6A degraded 1.5-fold more pretreated soft maple but produced 2- to ...

Four in vitro experiments (Exp.) were conducted to evaluate lavender essential oil (LEO) effects at 0 (control), 250 (low dose), 500 (medium dose), 750 and 1000 µL per L(high doses) of incubation medium on rumen gas production kinetics (Exp.1), ruminal digestibility and fermentation (Exp.2), methane production (Exp.3) and rumen acidosis (Exp.4). The asymptote of gas production (A) incr...

Seven cannulated (rumen and duodenal) Angus x Hereford steers (264 +/- 8 kg BW) consuming low-quality forage (5% CP; 61% NDF; 31% ADF) were used to determine the influence of CP degradability and supplementation frequency (SF) on DMI and nutrient digestion. Treatments included an unsupplemented control and degradable intake protein (DIP) or undegradable intake protein (UIP) provided daily, ever...

MAJER, V., VESELÝ, P.: An assessment of diff erences in the ruminal degradability and intestinal digestibility of crude protein in brewer’s grains and maize draff . Acta univ. agric. et silvic. Mendel. Brun., 2012, LX, No. 1, pp. 97–104 The submitted thesis aims to assess the diff erences between the ruminal degradability and intestinal digestibility of crude protein contained in brewer’s grain...