The Amino Acid Excretion Values in Intact and Cecectomized Negative Control Roosters Used for Determining Metabolic Plus Endogenous Urinary Losses
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چکیده
منابع مشابه
The 15N-leucine single-injection method allows for determining endogenous losses and true digestibility of amino acids in cecectomized roosters
This study was conducted to assess the influence of dietary protein content in poultry when using the 15N-leucine single-injection method to determine endogenous amino acid losses (EAALs) in poultry. Forty-eight cecectomized roosters (2.39 ± 0.23 kg) were randomly allocated to eight dietary treatments containing protein levels of 0, 3%, 6%, 9%, 12%, 15%, 18% and 21%. Each bird was precisely fed...
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This study was conducted to compare the concentration of standardized digestible (SDD) Lys and relative bioavailable Lys in 7 sources of corn distillers dried grains with solubles (DDGS). A second objective was to evaluate 2 in vitro methods, reactive Lys and color score, to predict the concentration of SDD Lys and bioavailable Lys in DDGS. Seven sources of DDGS were fed to cecectomized rooster...
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There is ample evidence that vitamin D deficiency rickets in man is associated with hyperaminoaciduria (1). Further studies (2) on renal clearance have de monstrated that elevated urinary amino acid excretion results from diminished reabsorption of it by the renal tubular cells. Many attempts (3, 4), however, failed to find aminoaciduria in experimental rachitic animals until GROSE and SCRIBER ...
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Five sources of corn distillers dried grains with solubles (DDGS), which varied in darkness of color, were collected from several processing plants in the Midwestern United States. Sources of DDGS were analyzed for their amino acid and energy contents, measured for color score, and evaluated for TMEn, apparent amino acid digestibility, and true amino acid digestibility. A precision-fed rooster ...
متن کاملComparison of amino acid digestibility determined prececally or based on total excretion of cecectomized laying hens.
This study investigated the possibility of using cecectomized laying hens for the determination of amino acid (AA) digestibility of protein sources as an alternative to measurements made at the terminal ileum. Toasted soybeans and corn gluten meal were used as test protein sources. A low-protein basal diet was based mainly on corn, wheat gluten, and cornstarch. In 4 other diets toasted soybeans...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1981
ISSN: 0032-5791
DOI: 10.3382/ps.0601576