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Sites, rates, and limits of starch digestion and glucose metabolism in growing cattle.
TLDR
The main limit to use of dietary starch to support live weight gain is digestion and absorption from the small intestine, and increased oxidation of glucose at greater starch intakes may alter energetic efficiency by sparing other oxidizable substrates, like amino acids.
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The effects of ruminal acidosis on volatile fatty acid absorption and plasma activities of pancreatic enzymes in lambs.
TLDR
The data suggest that a short-term, severe insult of acute acidosis does not result in pancreatic tissue damage but may result in reduced ruminal VFA absorption for an extended period of time.
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Effects of exogenous emulsifiers and fat sources on nutrient digestibility, serum lipids, and growth performance in weanling pigs.
TLDR
Considering all experiments, addition of emulsifiers increased digestibility of nutrients but had minimal effect on growth performance.
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Net portal absorption of lactate and volatile fatty acids in steers experiencing glucose-induced acidosis or fed a 70% concentrate diet ad libitum.
Five crossbred steers (347 kg) were surgically fitted with rumen fistulae, hepatic portal, abdominal aorta and mesenteric catheters to measure organic acid absorption from the gut during acute…
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Small intestinal starch digestion in steers: effect of various levels of abomasal glucose, corn starch and corn dextrin infusion on small intestinal disappearance and net glucose absorption.
TLDR
Eight Holstein steers fitted with an elevated carotid artery, hepatic portal and mesenteric venous catheters, and abomasal and ileal cannulas were used in several 4 x 4 Latin square experiments to evaluate small intestinal starch digestion, concluding that only about 35% of the raw corn starch disappearing in the steer's small intestine resulted in net portal glucose absorption.
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Effects of calcium soaps of fatty acids on postpartum reproductive function in beef cows.
Twelve multiparous Simmental cows (584 kg) were used to determine the influence of calcium soaps of fatty acids (CSFA) incorporated in a range supplement on postpartum reproductive characteristics.…
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Fat source and calcium level effects on finishing steer performance, digestion, and metabolism.
TLDR
A 111-d finishing study evaluated animal growth and carcass characteristics using 138 steers in a randomized complete block design with a 2 x 3 factorial arrangement of treatments to explore the effects of fat sources when fed with high Ca on digestion and metabolism.
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Evaluation of oligosaccharide addition to dog diets: influences on nutrient digestion and microbial populations
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The effects of an Aspergillus oryzae extract containing alpha-amylase activity on ruminal fermentation and milk production in lactating Holstein cows
The effects of an Aspergillus oryzae extract containing alpha-amylase activity (Amaize™, Alltech Inc., Nicholasville, KY) were examined in vivo and in vitro . A lactating cow study employed 20 intact…
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Supplementation of dormant tallgrass-prairie forage: I. Influence of varying supplemental protein and(or) energy levels on forage utilization characteristics of beef steers in confinement.
TLDR
Increased levels of supplemental protein increased intake and utilization of dormant tallgrass-prairie forage and increasing supplemental energy without adequate protein availability was associated with depressed intake and digestibility.
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