scholarly journals Effects of Different Short-term Dietary Phosphorus Levels on Egg Specific Gravity and Blood Phosphorus of Hens

1979 ◽  
Vol 58 (1) ◽  
pp. 99-103 ◽  
Author(s):  
J.H. CHOI ◽  
R.D. MILES ◽  
R.H. HARMS
Keyword(s):  
Specific Gravity ◽  
Short Term ◽  
Dietary Phosphorus ◽  
Phosphorus Levels

scholarly journals Assessing Dietary Phosphorus Intake and Serum Phosphorus in Adults with Liver Conditions: NHANES 2015–2016

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 341-341
Author(s):  
Sowmiya Muthuraju ◽  
Derek Miketinas
Keyword(s):  
Liver Cancer ◽  
Cross Sectional Study ◽  
Serum Phosphorus ◽  
Cross Sectional ◽  
Funding Sources ◽  
Dietary Phosphorus ◽  
Usual Intake ◽  
Low Phosphorus ◽  
Phosphorus Intake ◽  
Phosphorus Levels

Abstract Objectives Patients with liver conditions may have increased phosphorus turnover which can increase the risk of severe hypophosphatemia and other complications. The objective of this cross-sectional study was to quantify the usual intake of phosphorus, assess serum phosphorus (SP) levels across levels of liver conditions, and to estimate and assess the odds for having critically low phosphorus levels across adults with and without liver conditions. Methods Data were obtained from the NHANES 2015–2016 cycle. Adults were divided into four groups based on self-reported responses from the NHANES medical history questionnaire: liver cancer (LC), unspecified current liver condition (CLC), unspecified resolved liver condition (RLC), and no liver condition. Usual intake was estimated using the NCI method and all analyses were adjusted to account for the complex, multistage, probability sampling design. Results Usual phosphorus intake was highest in participants with RLC (1399 ± 26.5 mg) and lowest in participants with LC (1267 ± 140.7 mg). Although the percentage of those meeting the EAR for phosphorus was high (>95%), SP levels are lowest in participants with LC. SP levels differed slightly across liver conditions: participants with LC had a SP level of 1.0 ± 0.07 mmol/L, while participants with CLC, RLC, or no liver conditions had SP levels of 1.2 ± 0.01 mmol/L, 1.2 ± 0.01 mmol/L, and 1.2 ± 0.02 mmol/L, respectively. Participants with CLC had a usual phosphorus intake of 1350 ± 49.6 mg, and those who had no liver conditions had a usual phosphorus intake of 1387 ± 18.5 mg. The odds for normal phosphorus levels in participants with LC was low (Odds = 0.06; 95% CI: 0.01–0.45); the odds for CLC participants having normal SP levels was 1.6 (95% CI: 1.2–2.15); the odds for normal SP levels in participants with RLC were 2.2 (95% CI: 1.3–3.75), and the odds for normal SP in participants with no liver conditions odds for low were 1.9, (95% CI: 1.71–2.14). Conclusions These results indicate that patients with liver cancer are at higher risk of hypophosphatemia, and that phosphorus recommendations for patients with liver cancer may need to be adjusted. However, the variability in this subpopulation with liver cancer is high and warrants further investigation. Funding Sources None.

Natural Sources and Requirements of Phosphorus for Fishes

1980 ◽  
Vol 37 (4) ◽  
pp. 679-686 ◽  
Author(s):  
Brian S. Nakashima ◽  
William C. Leggett
Keyword(s):  
Yellow Perch ◽  
Perca Flavescens ◽  
Absorption Efficiency ◽  
Available Phosphorus ◽  
Temperature Dependent ◽  
Daily Consumption ◽  
Natural Prey ◽  
Dietary Phosphorus ◽  
Daily Food ◽  
Phosphorus Levels

The hypothesis that daily consumption of natural prey provides a source of phosphorus sufficient to meet growth and metabolic requirements of fishes is examined. Fish may be capable of utilizing available phosphorus directly from the water; however, this source is negligible in comparison to dietary intake. Experiments were designed to test the effect of different dietary phosphorus levels, chosen to approximate those of natural prey items, on growth of juvenile perch at temperatures encountered during the growing season. Rations were based upon estimates of daily food consumption for perch in Lake Memphremagog. Growth was significantly temperature-dependent and independent of dietary phosphorus levels. Phosphorus:ash ratios of whole fish were not significantly different among diet treatments or between the initiation and termination of the growth experiment. Excretion of phosphorus was positively related to phosphorus intake.Key words: absorption efficiency, daily ration, growth, Lake Memphremagog, nutrition, Perca flavescens, phosphorus budget, yellow perch

scholarly journals Hy-Line W-36 and Hy-Line W-98 laying hens respond similarly to dietary phosphorus levels

2005 ◽  
Vol 84 (5) ◽  
pp. 757-763 ◽  
Author(s):  
J.L. Snow ◽  
K.A. Rafacz ◽  
P.L. Utterback ◽  
C.W. Utterback ◽  
R.W. Leeper ◽  
...  
Keyword(s):  
Laying Hens ◽  
Dietary Phosphorus ◽  
Phosphorus Levels

Phosphorus turnover in sheep

1967 ◽  
Vol 18 (4) ◽  
pp. 635 ◽  
Author(s):  
FM Tomas ◽  
RJ Moir ◽  
M Somers
Keyword(s):  
Rumen Fluid ◽  
Inorganic Phosphorus ◽  
Dietary Phosphorus ◽  
The Mean ◽  
Four Levels ◽  
Dietary Phosphorus Intake ◽  
Phosphorus Turnover ◽  
Very High ◽  
Phosphorus Intake ◽  
Phosphorus Levels

Rumen fluid, serum, and parotid salivary inorganic phosphorus concentrations in sheep given four levels of dietary phosphorus (0.42–4.02 g/day) were directly related to phosphorus intake. There was a very high correlation (r = +0.91; P < 0.001) between inorganic phosphorus concentrations in centrifuged rumen fluid and in parotid saliva. Serum inorganic phosphorus concentrations were positively correlated with those of saliva (r = +0.64; P< 0.05) and also with those in centrifuged rumen fluid (r = +0.75; P<0.01). The range in the mean daily saliva volumes collected from one parotid gland in each sheep was 3.2 to 4.2 l/day. The calculated minimum total salivary phosphorus secretion ranged from 3.0 g/day on the lowest dietary phosphorus intake to 5.3 g/day on the highest, the corresponding ratios of salivary to dietary phosphorus being from 7.24 to 1 .32 g/g. It appeared that salivary phosphorus was the major source of phosphorus to the rumen, and was also the principal determinant of rumen fluid inorganic phosphorus levels.

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