The objective was to study the effect of a commercially available xylanase (CAX), an experimental xylanase (EX), and EX in combination with protease (EXP) on the degradation of nondigestible carbohydrates (NDC) and apparent ileal digestibility (AID) of nutrients in wheat distillers dried grains with solubles (wDDGS). The control and 3 enzyme diets contained 96% wDDGS supplemented with vitamins,...

The influence of source and level of inclusion of raw glycerin (GLYC) in the diet on growth performance, digestive traits, total tract apparent retention (TTAR), and apparent ileal digestibility of nutrients was studied in broilers from 1 to 21 d of age. There was a control diet based on corn and soybean meal and 8 additional diets that formed a 2 × 4 factorial with 2 sources of GLYC and 4 leve...

Research has shown that newly hatched birds may be deficient in key digestive enzymes and that the immaturity of the digestive system may result in poor utilization of dietary nutrients. It has also been demonstrated that nutrient digestion rather than the ability to absorb nutrients seems to be the primary limiting factor. Therefore, dietary supplementation of enzymes not produced in sufficien...

In order to test the suitability of the horse as a nutritional model for elephants, digestibility studies were performed with six captive Asian elephants on six different dietary regimes, using the double marker method with acid detergent lignin as an internal and chromium oxide as an external digestibility marker. Elephants resembled horses in the way dietary supplements and dietary crude fibr...

The apparent ileal amino acid digestibility in 15 meat and bone samples was compared in growing broiler chickens and growing laboratory rat. The animals were given a diet containing meat and bone meal as the sole source of protein. All diets contained chromic oxide as the indigestible marker to calculate the digestibility estimates. Comparison of digestibility data shows that, for all dispensab...

The present study included two experiments; the first one investigated forage productivity and in vitro quality of a single cut taken at different plant ages (45, 60, 75 days after sowing—DAS) from four prominent cereal crops, namely, barley, oat, triticale, ryegrass, grown during successive winter seasons Northern Egypt. In addition, effect age removal on crop’s regrowth ability final grain yi...

Two experiments were performed to evaluate the effects of different levels of supplementation with a 50:50 (as-fed) mixture of molasses:crude glycerol on animal performance, total tract digestibility of nutrients, and ruminal in situ degradability of nutrients in beef heifers and steers consuming Tifton 85 Bermuda grass (Cynodon spp.) hay. For Exp. 1, 24 Angus crossbred heifers (380 ± 31 kg BW)...

Two experiments were conducted to determine the effects of dietary lysine and energy level on performance and apparent total tract digestibility (ATTD) of nutrients in weanling pigs. In Exp. 1, a total of 288 weaned pigs (initial BW 5.77±0.85 kg) were randomly allotted to 4 treatments (4 replicates per treatment with 18 pigs in each replicate). Experimental diets were fed in the 3 phases: phase...

Two experiments were conducted to determine the effect of EM on the consumption, nutritive value and digestibility of elephant grass (Pennisetum purpureum Schum cv. napier) silages processed from wilted and fresh grasses. The first experiment was a feeding trial with sheep involving three treatments: fresh grass silage + 9% ground corn fed alone or inoculated with EM, and wilted grass silage in...

Phosphorus of plant-based feedstuffs for monogastric animals is mainly in the form of phytic P, which has a very low bioavailability. The nondigested phytic P may contribute to P pollution. Furthermore, phytic acid may reduce digestibility of other minerals and protein. This study evaluated effects of the microbial 6-phytase RONOZYME HiPhos on apparent ileal digestibility of P, phytic acid, Ca,...