Urinary creatinine as a nutritional and urinary volume marker in sheep fed with tropical or temperate forages

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[Urinary creatinine as a nutritional and urinary volume marker in sheep fed with tropical or temperate forages]

To test the accuracy of creatinine as a marker for estimating urinary volume and its use as a nutritional index, the possible interference of forage intake and forage quality over creatinine excretion was evaluated. For this, sheep were fed different levels of pearl millet (Pennisetum americanum (L) Leeke) or Italian ryegrass (Lolium multiflorum Lam). The experiment consisted of a compilation o...

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Methanogenesis from forages fed to sheep

Methane production has been measured from lambs fed contrasting forages. This work has been driven by the need to reduce greenhouse gas emissions from agriculture and to determine energy losses to methane from contrasting diets. Young ram lambs were fed either fresh ryegrass/white clover pasture, lucerne (also pelleted lucerne), sulla, chicory, red clover, Lotus pedunculatus (lotus) and mixture...

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Urinary excretion of creatinine of children under different nutritional conditions.

I N 190S, Shaffer’ demonstrated that the daily excretion of creatinine in adult man is remarkably constant over long periods of time, even under the most varied circumstances. Because the quantity excreted is little affected by diet, exercise or volume of urine, the daily creatinine excretion is used to determine the completeness of twenty-four hour urine collections. Since creatinine excretion...

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Urinary Nitrogen Excretion of Sheep Fed Nitrogen-free Diets

The urinary nitrogen excretion of sheep offered a low nitrogen diet was lower than when the sheep were fed a nitrogen-free mixture post-ruminally. This result is discussed in terms of Folin’s (1905) definition of endogenous nitrogen, and the nitrogen recycling and utilization which can occur in the rumen/reticulum of sheep. Reasons are given why post-ruminal feeding should give an endogenous ni...

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Urinary C-Peptide Measurement as a Marker of Nutritional Status in Macaques

Studies of the nutritional status of wild animals are important in a wide range of research areas such as ecology, behavioural ecology and reproductive biology. However, they have so far been strongly limited by the indirect nature of the available non-invasive tools for the measurement of individual energetic status. The measurement of urinary C-peptide (UCP), which in humans and great apes sh...

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ژورنال

عنوان ژورنال: Arquivo Brasileiro de Medicina Veterinária e Zootecnia

سال: 2015

ISSN: 0102-0935

DOI: 10.1590/1678-4162-7759