Comparison of soy-protein and egg albumin on endogenously secreted zinc
Male albino rats (Charles River) were maintained on a basal soy-protein diet, unsupplemented with Zn and with 1.6% Ca for 4 weeks (Ca)(Phy)/(Zn) = 9.4(molar). Animals were subdivided in 2 expts. between soy-protein 0.8% Ca, 11.24 mg Zn/Kg diet (4.2(molar)) or 1.6% Ca, 11.21 mg Zn/Kg (9.4(molar)) and egg albumin 0.8% Ca, 0.46 mg Zn/Kg diet and 1.6% Ca, 0.37 mg Zn/Kg diet at which time each animal was injected with 10 ..mu..Ci /sup 65/Zn. Daily fecal collections were made for 14 days and ratios of /sup 65/Zn Soy:Egg alb. calculated. The very low concentration of Zn in the egg albumin diet restricted the pancreatic secretion of Zn and the differential effect of phytate on these diets was not apparent as shown earlier with soy and casein diets. This was also reflected in the growth rates of the exptl. groups in that the egg albumin fed rats gained -4.4 and -9.0 g/wk; soy fed rats gained 28.0 and 17.3 g/wk.
- Research Organization:
- Texas Tech Univ., Lubbock
- OSTI ID:
- 6754089
- Report Number(s):
- CONF-8604222-
- Journal Information:
- Fed. Proc., Fed. Am. Soc. Exp. Biol.; (United States), Vol. 45:4; Conference: 70. annual meeting of the Federation of American Society for Experimental Biology, St. Louis, MO, USA, 13 Apr 1986
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
ZINC
METABOLISM
ALBUMINS
CALCIUM
COMPARATIVE EVALUATIONS
DIET
FECES
PROTEINS
RATS
TRACER TECHNIQUES
ZINC 65
ALKALINE EARTH METALS
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EVEN-ODD NUCLEI
INTERMEDIATE MASS NUCLEI
ISOTOPE APPLICATIONS
ISOTOPES
MAMMALS
MATERIALS
METALS
NUCLEI
ORGANIC COMPOUNDS
RADIOISOTOPES
RODENTS
VERTEBRATES
WASTES
ZINC ISOTOPES
560300* - Chemicals Metabolism & Toxicology
550501 - Metabolism- Tracer Techniques