geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Effect of dietary calcium and vitamin D3 on calcium and phosphorus retention in white pekin ducklings


, : Effect of dietary calcium and vitamin D3 on calcium and phosphorus retention in white pekin ducklings. Poultry Science 84(4): 561-570

Higher concentrations of Ca in the diet may decrease phytate-phosphorus hydrolysis because of chelation of Ca with the phytin molecule. In experiment 1, drakes were fed 0.74, 0.85, 0.95, or 1.11% Ca (analyzed) from 7 to 18 d of age (6 birds/cage, 8 cages/diet). Intestinal mucosa was collected at 18 d of age from birds fed 0.74 and 1.11% Ca for determination of intestinal phytase activity. In experiment 1, 17 d BW gain and feed consumption exhibited a quadratic response to increasing concentrations of Ca and were found to be maximal for ducks fed the 0.95% Ca diet. Toe ash percentage (18 d) had a quadratic response to increasing concentrations of Ca with a maximal response for birds fed the 0.85% Ca diet. Increasing dietary Ca did not affect P retention from 15 to 17 d of age or intestinal phytase activity and brush border vesicle Ca concentration. A positive correlation was found between the Vmax and the Ca concentration within the vesicles (r = 0.59, P < 0.02), suggesting that the vesicle Ca concentration did not negatively affect the kinetics of the phytase assay. In experiment 2, drakes were fed 0.6, 0.8, 1.0, or 1.2% Ca (formulated) with 826 or 8,260 ICU/kg of vitamin D3 from 0 to 13 d of age. There was no response to increasing concentrations of Ca for performance characteristics or bone ash measurements.

US$19.90

PMID: 15844812

DOI: 10.1093/ps/84.4.561


Other references

Chiles, J.; Chiles, J., 1990: The benefits of a starter fertilizer high in phosphate that can be sprayed on the leaves of seedling cotton. Proceedings Beltwide Cotton Production Research Conferences: 11

Balmforth, D.J.; Blanksby, J.R.; Brown, C.; Rogerson, C., 1999: Development and testing of a new design procedure for the control of aesthetic pollutants at combined sewer overflows. Two research projects identified the need for a new design guide and software to facilitate the design of combined sewer overflows. The purpose of the design guide and software is to enable the selection of the most cost effective arrangement of o...

Trahair, T.N.; Alexander, I.E.; Rowe, P.B.; Smythe, J.A., 2000: The adenovirus E4 ORF6 and E1b 55 kDa proteins cooperate in a p53-independent manner to enhance transduction by recombinant adeno-associated virus vectors. The observation that exposure of target cells to genotoxic stress or adenovirus infection enhances recombinant adeno-associated virus (rAAV) transduction is an important lead towards defining the rAAV transduction mechanism, and has significant im...

Maak B.; Meyer M., 1989: Fibrinogen jena a heredity fibrinogen variation with disturbed fibrinopeptide a release. Zeitschrift fuer Klinische Medizin (Berlin) 44(14): 1243-1246

Hu, J.H.; Zhu, Y.; Xue, P.H., 1997: Determination of permeation of ketoprofen across the skin in vitro by second order derivative spectrophotometry. A second order derivative spectrophotometric method was developed for the permeative determination of ketoprofen in vitro. The method can avoid the disturbance of skin tissue. The procedure is simple and rapid. The results are accurate. The mean r...

Ulloa, J.; Rodriguez, M.; Cubillos, A.; Ernst, S., 1987: Influence of different procedures for handling blood absorbed on paper on Newcastle disease haemagglutination inhibition titres. Blood samples from 100 chickens vaccinated against Newcastle disease were absorbed on chromatographic paper. In samples kept at room temperature, the mean titre (MT), was initially 8.0, was stable between days 10 and 40 (5.7-6.0), and on day 60 ha...

Franz, David, R., 2001: Recruitment, survivorship, and age structure of a New York ribbed mussel population (Geukensia demissa) in relation to shore level: A nine year study. Age structure, recruitment, and survivorship of a Jamaica Bay, New York ribbed mussel (Geukensia demissa) population were studied over nine years at two shore elevations. Mussels were collected in November (following seasonal growth and recruitmen...

Mendez-Samperio, P.; Lamb, J.; Bothamley, G.; Stanley, P.; Ellis, C.; Ivanyi, J., 1989: Molecular study of the T cell repertoire in family contacts and patients with leprosy. The specificity of lymphocyte proliferative responses of 22 family contacts and 7 patients with leprosy were analyzed using Ag fractions from soluble extracts of Mycobacterium leprae and Mycobacterium tuberculosis. Fractions 10-100 kDa m.w. from e...

Andrica, D.C., 1999: Entrepreneurship: is it for you?. Nursing Economic$ 16(6): 330-330

Marrari, A.; Iero, M.; Pilla, L.; Villa, S.; Salvioni, R.; Valdagni, R.; Parmiani, G.; Rivoltini, L., 2006: Vaccination therapy in prostate cancer. Radical prostatectomy and radiation therapy provide excellent localized prostate cancer (PC) control. Although the majority of prostate carcinoma is nowadays diagnosed at early stages with favourable risk features, in patients up to 30-40% it rec...