The objective was to assess the ability of the in situ mobile nylon bag method for predicting small intestinal and total tract starch digestibility. Starch disappearance was measured for 18 samples of different cereals and legumes subjected to different physical and chemical processing methods and compared with coherent in vivo digestibility. Starch disappearance was measured both with and with...

The effects of level of feed intake (0.8, 1.2 and 1.6 kg/d) and body-weight of the pig (49 and 92 kg) in Expt 1, and dietary neutral-detergent fibre (NDF; 30, 60, 90, 120 and 150 g/kg) in Expt 2 on the endogenous ileal flow of amino acids (AA) and nitrogen were studied with protein-free diets into which purified wood cellulose was incorporated at the expense of maize starch. In Expt 1, one of t...

Three methods were evaluated for the determination of apparent ileal digestibility values of amino acids in feedstuffs with a low protein (barley, 10.2% CP) and a high protein content (canola meal, 38.2% CP). Five barrows, average initial BW 40 kg, were fitted with a simple T-cannula at the distal ileum and fed five diets according to a 5 x 5 Latin square design. Diet 1 contained 42.7% canola m...

Early-weaned gilts fitted with simple ileal T-cannulas were used to determine the effect of protein source on N and amino acid (AA) digestibility. The digestibilities of N and AA in 25- to 53-d-old pigs fed either dried skim milk (DSM), isolated soybean protein (ISP), soybean protein concentrate (SPC), or soybean meal (SBM) as the only protein source were determined. The pigs were fed semipurif...

Two trials were conducted to evaluate the effects of protein source (48% CP soybean meal or casein) and carbohydrate source (25% dextrose or 25% lactose) on digestibility and digesta flow rate in early-weaned pigs. Diets contained 10% crude soybean oil and were formulated to contain 3.5 g lysine, 2.3 g Ca and 2.0 g P per 1,000 kcal DE of diet. In Trial 1, nutrient digestibility was greater for ...

the effects of selko-ph (s; 1 ml/l drinking water); termin-8 (t; 2 kg/ton feed) and neogermicin (n; 2 l/ton feed) on gastrointestinal tract (git) ph, microbial population, ileal digestibility and broiler performance were investigated. the lowest feed intake (fi) was attained by chickens fed diets supplemented with s group in all periods (p

There is only little information how the age of chicks and the microbial activity in the hind gut of young broilers can affect the digestibility coefficients of amino acids. Ross 308 broilers were kept in battery cages and fed an experimental diet containing N-free components, soybean meal as the only protein source and TiO2 as a marker. Digestibility trials were carried out weekly from the 2 t...

Two experiments were conducted to determine apparent ileal DM and crude-protein (CP) digestibilities in rations fed to pigs. An evaluation was made of Cr2O3 and HCl-insoluble ash as digestive markers. In addition, the effects of body weight (BW) on apparent ileal DM and CP (N x 6.25) digestibilities were studied. In Expt 1, thirteen barrows averaging 35 kg BW were fitted with post-valve T-caecu...

The effects of Selko-pH (S; 1 mL/L drinking water); Termin-8 (T; 2 kg/ton feed) and Neogermicin (N; 2 L/ton feed) on gastrointestinal tract (GIT) pH, microbial population, ileal digestibility and broiler performance were investigated. The lowest feed intake (FI) was attained by chickens fed diets supplemented with S group in all periods (P

The objectives of this study were to determine whether intestinal viscosity caused by mixed linked barley beta-glucan depresses ileal nutrient digestibility and digestive enzyme activities and to determine the interaction of intestinal viscosity, digestive enzyme activities and ileal nutrient digestibility in different ages of poultry. In Experiments 1 and 2, 1-d-old broiler chicks and 1-y-old ...