Chiwing Kong

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An experiment was conducted to determine response in digestibility of DM and the AA composition of ileal endogenous flow of 26-d-old broilers to nitrogen-free diets (NFD) formulated with different ratios of corn starch to dextrose. A total of four hundred eighty 3-wk-old broiler chickens were used in a 4-d trial to estimate ileal endogenous flow (IEF) of(More)
The apparent ileal amino acid digestibility of 6 feedstuffs, namely corn, wheat, corn distillers dried grains with solubles, canola meal, soybean meal (SBM), and meat and bone meal (MBM) were determined for White Pekin ducks in a 5-d experiment. The feedstuffs served as the sole source of amino acids in semipurified diets composed of dextrose, soy oil,(More)
Two 21-d broiler experiments were conducted to assess the efficacy of a bacterial 6-phytase expressed in Aspergillus oryzae on growth performance, nutrient utilization, and intestinal molecular markers. Two hundred forty birds in 5 treatments (experiment 1) or 256 birds in 4 treatments (experiment 2) were used. The treatments included a negative control(More)
A total of 608 three-week-old male broiler chickens and White Pekin ducks were used in a 5-d trial to compare ileal amino acid (AA) digestibility of soybean meal (SBM) and canola meal (CM) using the regression method. A corn-casein-cornstarch-based diet was mixed to contain 15% CP. Cornstarch was replaced with test ingredient (SBM or CM) to contain 18 or(More)
A total of 256 broiler chickens and 208 White Pekin ducks were used in a 5-d trial to test additivity of the apparent (AID) and standardized ileal digestibility (SID) of amino acids (AA) in corn and soybean meal (SBM). A nitrogen-free diet was used for standardization of apparent digestibility. Two diets contained corn or SBM as the sole source of CP and(More)
The energy values of 3 distillers dried grains with solubles (DDGS) derived from corn, triticale, and sorghum and 3 oil seed meals including canola meal (CM), cottonseed meal (CSM), and sunflower meal (SFM) were determined in 2 experiments. For both of experiments, 24 crossbred barrows (initial BW: 28.0 ± 1.60 and 28.0 ± 2.0 kg for Exp. 1 and 2,(More)
The regression method was used in a 14-d broiler chicken study to determine the true ileal digestibility of amino acid (AA) and protein utilization in canola meal (CM, 388 g of CP/kg) without or with added phytase. Experimental treatments consisted of 2 factors, phytase at 2 levels (0 or 1,500 phytase units/kg) and CM at 3 levels (125, 250, or 375 g/kg).(More)
PURPOSE To study the characteristics of ion transport across the isolated porcine ciliary epithelium to offer the good model for human ciliary epithelium study. METHODS Fresh isolated pig ciliary epithelium was mounted in a modified Ussing-type chamber to measure the electrical parameters and the effect of 0.1mM ouabain was investigated. RESULTS The(More)
An experiment was conducted to determine the effect of graded levels of β-glucanase supplementation to barley (Hordeum vulgare)-based diets on the digestibility of DM, GE, N, and AA for growing-finishing pigs. Eight pigs (initial BW: 53.3 ± 3.2 kg) were each fitted with a simple T-cannula at the distal ileum and allotted to a replicated 4 × 4 Latin square(More)
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