scholarly journals Energy and Standardized Ileal Amino Acid Digestibilities of Chinese Distillers Dried Grains, Produced from Different Regions and Grains Fed to Growing Pigs

2011 ◽  
Vol 25 (1) ◽  
pp. 104-113 ◽  
Author(s):  
P. C. Xue ◽  
B. Dong ◽  
J. J. Zang ◽  
Z. P. Zhu ◽  
L. M. Gong
Keyword(s):  
Amino Acid ◽  
Growing Pigs ◽  
Distillers Dried Grains

scholarly journals Protein quality in experimental diets and amino acid digestibility

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 28-29
Author(s):  
Chan Sol Park ◽  
Olayiwola Adeola
Keyword(s):  
Amino Acid ◽  
Dietary Protein ◽  
Protein Quality ◽  
Sole Source ◽  
Growing Pigs ◽  
Ileal Digestibility ◽  
Distillers Dried Grains ◽  
Low Protein ◽  
Dietary Casein ◽  
Dietary Treatments

Abstract Digestibility of AA in feed ingredients for pigs has been generally determined by feeding semipurified diets containing test ingredients as a sole source of nitrogen. However, malnutrition caused by feeding semi-purified diets may affect the digestibility of AA. Therefore, the hypothesis of this study was that the standardized ileal digestibility (SID) of AA in distillers’ dried grains with solubles (DDGS) are not affected by the addition of casein in experimental diets. In Exp. 1, 20 growing pigs were allotted to dietary treatments including 2 diets containing either 480 g/kg DDGS or 308 g/kg DDGS and 60 g/kg casein. The SID of Lys and Phe for DDGS in the diet containing casein were greater (P < 0.05) than those without casein. Exp. 2 was conducted with 20 growing pigs assigned to dietary treatments containing 0, 55, 110, or 165 g/kg casein while the concentration of DDGS decreased at 466.8, 311.2, 155.6, or 0 g/kg. The SID of most indispensable AA in DDGS linearly (P < 0.05) decreased with increasing concentration of casein. Experiment 3 was conducted to verify that the results of Exp. 1 were affected by the addition of casein or by the concentration of DDGS or both. Twenty growing pigs were assigned to dietary treatments prepared as a 2 × 2 factorial arrangement with the concentration of DDGS at 466.8 or 155.6 g/kg and casein at 0 or 110 g/kg. The SID of most indispensable AA in DDGS at 466.8 g/kg were greater (P < 0.01) than in DDGS at 155.6 g/kg regardless of dietary casein. Overall, the addition of 60 g/kg casein to experimental diets may increase the SID of AA in low-protein quality ingredients but the addition of higher concentration of casein and low concentration of dietary protein from test ingredients may decrease the SID of AA.

scholarly journals Amino acid digestibility in low-fat distillers dried grains with solubles fed to growing pigs

2014 ◽  
Vol 5 (1) ◽  
pp. 27 ◽  
Author(s):  
Shelby Curry ◽  
Diego Mario David Labadan Navarro ◽  
Ferdinando Almeida ◽  
Juliana Abranches Almeida ◽  
Hans Stein
Keyword(s):  
Amino Acid ◽  
Growing Pigs ◽  
Low Fat ◽  
Distillers Dried Grains

scholarly journals Determination and Prediction of the Amino Acid Digestibility of Sunflower Seed Meals in Growing Pigs

2014 ◽  
Vol 28 (1) ◽  
pp. 86-94 ◽  
Author(s):  
J. D. Liu ◽  
Q. Y. Li ◽  
Z. K. Zeng ◽  
P. Li ◽  
X. Xu ◽  
...  
Keyword(s):  
Amino Acid ◽  
Sunflower Seed ◽  
Growing Pigs

Somatotropin increases protein balance independent of insulin's effects on protein metabolism in growing pigs

2000 ◽  
Vol 279 (1) ◽  
pp. E1-E10 ◽  
Author(s):  
Rhonda C. Vann ◽  
Hanh V. Nguyen ◽  
Peter J. Reeds ◽  
Norman C. Steele ◽  
Daniel R. Deaver ◽  
...  
Keyword(s):  
Amino Acid ◽  
Protein Metabolism ◽  
Growing Pigs ◽  
Whole Body ◽  
Metabolic Responses ◽  
Glucose Disposal ◽  
Blood Levels ◽  
Protein Balance ◽  
Protein Deposition ◽  
Leucine Oxidation

Somatotropin (ST) administration enhances protein deposition and elicits profound metabolic responses, including hyperinsulinemia. To determine whether the anabolic effect of ST is due to hyperinsulinemia, pair-fed weight-matched growing swine were treated with porcine ST (150 μg · kg body wt−1 · day−1) or diluent for 7 days ( n = 6/group, ∼20 kg). Then pancreatic glucose-amino acid clamps were performed after an overnight fast. The objective was to reproduce the insulin levels of 1) fasted control and ST pigs (basal insulin, 5 μU/ml), 2) fed control pigs (low insulin, 20 μU/ml), and 3) fed ST pigs (high insulin, 50 μU/ml). Amino acid and glucose disposal rates were determined from the infusion rates necessary to maintain preclamp blood levels of these substrates. Whole body nonoxidative leucine disposal (NOLD), leucine appearance (Ra), and leucine oxidation were determined with primed, continuous infusions of [13C]leucine and [14C]bicarbonate. ST treatment was associated with higher NOLD and protein balance and lower leucine oxidation and amino acid and glucose disposals. Insulin lowered Ra and increased leucine oxidation, protein balance, and amino acid and glucose disposals. These effects of insulin were suppressed by ST treatment; however, the protein balance remained higher in ST pigs. The results show that ST treatment inhibits insulin's effects on protein metabolism and indicate that the stimulation of protein deposition by ST treatment is not mediated by insulin. Comparison of the protein metabolic responses to ST treatment during the basal fasting period with those in the fully fed state from a previous study suggests that the mechanism by which ST treatment enhances protein deposition is influenced by feeding status.

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