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Life Sciences

1998

Articles 1 - 2 of 2

Full-Text Articles in Education

Taurine Status In Cats Is Not Maintained By Dietary Cysteinesulfinic Acid, S Edgar, Claudia Kirk, Q Rogers, J Morris Mar 1998

Taurine Status In Cats Is Not Maintained By Dietary Cysteinesulfinic Acid, S Edgar, Claudia Kirk, Q Rogers, J Morris

Claudia A Kirk

Endogenous synthesis of taurine by cats is limited. Putative precursors of taurine, cysteinesulfinic acid and cysteic acid, were fed to cats to determine whether they were utilized. Groups of five cats were depleted of taurine by a resin (Colestipol(R)) diet, then given 6 dietary treatments containing (g/kg diet): 0.0, 0.4, or 0.8 taurine; or 0.98 or 1.96 cysteinesulfinic acid, or 0.4 taurine + 1.0 cysteic acid for 12 wk. Plasma and whole blood taurine concentrations and body weights were measured weekly. Concentration of taurine in semitendinosus muscle was measured initially, after 2 ...


Dietary Taurine Needs Of Cats Vary With Dietary Protein Quality And Concentration, R Backus, J Morris, S Kim, J O'Donnell, M Hickman, Claudia Kirk, J Cooke, Q Rogers Dec 1997

Dietary Taurine Needs Of Cats Vary With Dietary Protein Quality And Concentration, R Backus, J Morris, S Kim, J O'Donnell, M Hickman, Claudia Kirk, J Cooke, Q Rogers

Claudia A Kirk

The influence of dietary protein on the taurine requirement of cats was evaluated by analysing the results from several experiments in which taurine status of cats was assessed after several weeks of feeding purified and commercial diets. The diets varied in taurine content, protein source and protein concentration, with some diets cooked or containing cooked ingredients.The quality and concentration of dietary protein affected taurine requirement. As indicated by digestibility estimates, taurine requirement increased when protein quality decreased. When diets containing protein in excess of that required were fed, the need for taurine was increased by increasing dietary protein level ...