Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Muriel I. Davies"'
Publikováno v:
The Journal of Nutrition. 106:265-274
Fourteen experiments were concluded on the effect of protein and carbohydrate sources in the assay diets on the relative biological values (RBV) of food grade sodium iron pyrophosphate (NaFePP) and ferric orthophosphate (FePO4) vs. ferrous sulfate (F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b07f14080b3d0eff22de360f18a3b58
https://doi.org/10.1093/jn/106.2.265
https://doi.org/10.1093/jn/106.2.265
Publikováno v:
Journal of AOAC INTERNATIONAL. 58:99-103
A sample of reduced iron was separated by air elutriation into several fractions based on particle size; and the relative biological values (RBVs) of 3 fractions containing fine, medium, and coarse particles were determined with rats and chicks, usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad7a1a8679bb73e0752a25cfa7208645
https://doi.org/10.1093/jaoac/58.1.99
https://doi.org/10.1093/jaoac/58.1.99
Publikováno v:
Poultry Science. 51:526-530
Broiler chicks (White Plymouth Rock and Vantress × W.P.R.) were raised to three weeks of age on a practical corn-soy ration. The experimental diets contained 0.2, 0.4 or 0.6% magnesium, 0.6, 1.0 or 1.5% calcium and 0.16, 0.48 or 0.80% inorganic phos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96ae5ab38a1dece868dd2094c75b0b5f
https://doi.org/10.3382/ps.0510526
https://doi.org/10.3382/ps.0510526
Autor:
Muriel I. Davies, I. Motzok
Publikováno v:
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry. 40:129-137
1. 1. Severe zinc deficiency in the chick was produced by feeding 1·3 ppm dietary zinc. 2. 2. Tissue zinc content was depleted in the tibia more than in the liver and intestine. 3. 3. Alkaline phosphatase activities compared to zinc-supplemented con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eebac2cdc492e3a78db82861da0240f7
https://doi.org/10.1016/0305-0491(71)90069-1
https://doi.org/10.1016/0305-0491(71)90069-1
Publikováno v:
Poultry Science. 49:1280-1286
AS indicated in reviews by Taylor (1965) and Nelson (1967) data are incomplete and often conflicting in regard to the influence of dietary factors on the extent to which chicks are able to utilize phytin phosphorus. Maddaiah et al. (1964) were unable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16b4da912666a90ab10c2c7dd03cabbd
https://doi.org/10.3382/ps.0491280
https://doi.org/10.3382/ps.0491280
Autor:
Muriel I. Davies, I. Motzok
Publikováno v:
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry. 42:345-356
1. 1. Extracts from fresh and autolysed mucosa were fractionated with Sephadex G-200. 2. 2. Alkaline phosphatase and phytase were eluted in the same fractions. Components were close together on the elution curve and separation of isoenzymes on the ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb40ba6c3dce8c80f3a0cc6afab74b3d
https://doi.org/10.1016/0305-0491(72)90251-9
https://doi.org/10.1016/0305-0491(72)90251-9
Publikováno v:
Journal of AOAC INTERNATIONAL. 55:1206-1210
Colorimetric (sulfonated bathophenanthroline) and atomic absorption methods for the analysis of iron in low-iron diets (7–30 ppm used in the biological assay of iron) gave mean values which were not significantly different; however, the values obta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e2b85c64301be9bf45e05bf715374f4
https://doi.org/10.1093/jaoac/55.6.1206
https://doi.org/10.1093/jaoac/55.6.1206
Publikováno v:
Canadian journal of physiology and pharmacology. 49(4)
Diets with varying levels of Ca, inorganic phosphorus (P1), and vitamin D3 were fed to chicks from 1 day of age. Alkaline phosphatase of intestinal mucosa was twofold higher at 3 weeks in female chicks fed 0.16% of P1 than in chicks fed 0.48% of P1 w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7dd55eed10ba8c42be8d179b5c93e0c
https://pubmed.ncbi.nlm.nih.gov/4330985
https://pubmed.ncbi.nlm.nih.gov/4330985
Publikováno v:
Poultry science. 48(4)
THE rapid hydrolysis of p-nitrophenyl phosphate (King and Delory, 1939) and the high extinction coefficients of the p-nitrophenol ion, one of the products of hydrolysis, were utilized by Bessey et al. (1946) in the development of a simple procedure f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82da375bf244008718bf93aa6644c02d
https://pubmed.ncbi.nlm.nih.gov/5824191
https://pubmed.ncbi.nlm.nih.gov/5824191
Autor:
I. Motzok, Muriel I. Davies
Publikováno v:
Poultry science. 51(2)
Optimum conditions for the assay of chick intestinal phytase were studied on native and commercial “technical” and “purified” preparations. Activity was near maximum when the substrate concentration was about 0.25 mM sodium phytate (1.5 mM ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebda4eac8834ec66a3f6b80401a9a510
https://pubmed.ncbi.nlm.nih.gov/4345248
https://pubmed.ncbi.nlm.nih.gov/4345248