Interactions among arsenic, zinc, and taurine in chicks
A 2 x 2 x 2 factorially arranged experiment was done using day-old cockerel chicks to ascertain whether Zn and taurine (Tau), through changing methionine (Met) or sulfate metabolism, affect signs of As deprivation. The dietary variables were supplements of As, 0 or 2 ..mu..g/g; Zn, 10 or 40 ..mu..g/g; and Tau, 0 or 0.84%. The basal diet contained (per g): 15 ng As, 7 ..mu..g Zn, and 5.65 mg Met. For comparison purposes two additional groups of chicks were fed diets supplemented with 0 or 2 ..mu..g As, 40 ..mu..G Zn, 0 Tau, and 0.5 Met. After 26 days, Tau supplementation alleviated many perturbations caused by an apparent methionine deficiency. For example, final body wt was increased from 596 g to 741 g. However, Tau was much less effective than Met in inhibiting the elevation in plasma Mo caused by Met lack. An interaction between Tau and Zn affected several indices including liver Zn concentration. Tau decreased the liver Zn concentration when dietary Zn was 40 ..mu..g/g. An interaction between Tau and As affected plasma urea. Supplemental As elevated urea in chicks fed 0 Tau, but depressed urea in chicks fed 0.84% Tau. Kidney arginase tended to follow a similar trend. The findings show that Tau can fulfill some of the Met requirements of chicks and that Tau interacts with Zn and As. Some findings also support the hypothesis that As has a physiological role that affects arginine and Met metabolism.
- Research Organization:
- Dept. of Agriculture, Grand Forks, ND
- OSTI ID:
- 5497995
- Report Number(s):
- CONF-8604222-
- Journal Information:
- Fed. Proc., Fed. Am. Soc. Exp. Biol.; (United States), Journal Name: Fed. Proc., Fed. Am. Soc. Exp. Biol.; (United States) Vol. 45:3; ISSN FEPRA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AMINES
AMINO ACIDS
ANIMALS
ARSENIC
BIOLOGICAL EFFECTS
BIRDS
CARBOXYLIC ACIDS
CHICKENS
DIET
DRUGS
ELEMENTS
FOWL
LIPOTROPIC FACTORS
METABOLISM
METALS
METHIONINE
NUTRITIONAL DEFICIENCY
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
SEMIMETALS
SULFATES
SULFONIC ACIDS
SULFUR COMPOUNDS
SYNERGISM
TAURINE
VERTEBRATES
ZINC