The objective of this study was to determine standardized AA digestibility of corn, corn gluten meal, and 3 distillers dried grains with solubles (DDGS) using the precision-fed cecectomized rooster assay (PFR), the standardized ileal AA broiler chicken assay (SIAAD), and a newly developed precision-fed ileal broiler chicken assay (PFC). For the PFR, cecectomized roosters were precision-fed appr...

Using ileal digestible amino acids in feed optimising will intensify feed protein utilizing and decrease nitrogen excretion to the environment. The study determined the apparent ileal digestibility (AID) coefficients of amino acids in barley, wheat, oats, triticale, maize, and dehulled oats in the diets of 180 Ross broiler chickens (aged 24–35 days). The birds were fed semi-purified diets that ...

Heat treatment of soybean meal (SBM) is necessary to reduce the concentration of trypsin inhibitors, but excessive heat treatment may reduce AA concentration and digestibility because AA can be destroyed by the Maillard reaction. The objective of this experiment was to determine the effects of heat treatment of SBM on apparent ileal digestibility and standardized ileal digestibility (SID) of AA...

The study was conducted to investigate the effects of graded dietary inclusion levels of betaine on ileal and total tract nutrient digestibilities and intestinal bacterial metabolites in piglets. A total of eight barrows with an average initial body weight of 7.9 kg were randomly allocated to one of the four assay diets with two pigs per treatment in four repeated measurement periods. The assay...

An experiment was conducted to evaluate the effects of cereal carbohydrate form (isolated v. cereal matrix) and level, especially mixed-linked β-glucan (hereafter referred to as β-glucan) and starch amylase/amylopectin ratio on nutrient digestibility and fermentation parameters in the intestines of weaned pigs. Four hulless barley cultivars containing varying β-glucan levels (41 to 84 g/kg) wer...

Sixteen meat and bone meal (MBM) samples were obtained and selected from various company plants to provide a wide range in pepsin nitrogen digestibility values. Pepsin digestibility was determined using either 0.02 or 0.002% pepsin. Amino acid (AA) digestibility of the 16 MBM samples was then determined using a precision-fed cecectomized rooster assay. The 0.02% pepsin digestibility values were...

in the first experiment, the nitrogen corrected apparent metabolizable energy (amen) and nutrients apparent digestibility of full fat soybean (ffsb) extruded at 145, 155 (common temperature) and 165 o c were evaluated. the corn-soy based diets were replaced with zero, 7.5, 15 and 22.5 % of each ffsb extruded at three temperatures during 15-21 d of age and amen and nutrients digestibility of eff...

With the intention of evaluating fecal and ileal digestibility crude palm oil (Elaeis guineensis), chicken oil, Sacha inchi (Plukenetia volubilis) at inclusion levels 3%, 6%, 9%, a total 480 female Ross 308 broiler chickens were used. Digestibility was assessed 21 days age for both diets fat sources. Total collection or indicator method with chromium oxide used digestibility, while digestibilit...

The present investigation was undertaken to study whether conventional male Wistar rats could be used as a model for pigs with regard to total tract digestibilities of NSP and macronutrients and whether nebacitin-treated rats could be used as a model for small intestinal digestibility in pigs. Nineteen experimental diets prepared from different fractions of wheat and oats, and which all had bee...

The aim of this study was to determine ileal AA and fiber digestibility in new-generation dried distillers grains with solubles (DDGS) derived from wheat (wDDGS), a wheat-corn blend [wcDDGS, wheat and corn were fermented in a 7:3 wt/wt ratio], or corn (cDDGS) and to determine the effects of diets containing DDGS on gut bacteria and bacterial and digestive enzyme activities. Experimental diets c...