Liver and muscle proteolytic activity in field bean (Vicia faba L.) fed birds. Effect of vitamin E.
Liver and muscle proteolytic activities (cathepsin A and D) were measured in growing male chickens fed ad libitum over periods of 30 and 60 days on 20% protein diets containing either heated soybean (HSB, control) or raw field bean (RFB, Vicia faba L.) as the main sources of protein. Vitamin E (250 mg/100 g diet) was added or not to the RFB diet. It has been found that in comparison to control HSB-fed animals, RFB-fed birds showed a significant reduction in the rate of growth, together with a significant increase in the activities of both cathepsins A and D in liver and muscle. The addition of vitamin E to the RFB diet had no significant effect on either weight gain or liver and muscle proteolytic activities. The possible nature of these effects is discussed.
Departamento de Fisiología (División de Nutrición), Facultad de Farmacia, Universidad de Navarra, Pamplona (Spain).
S
S
Santidrián
M L
ML
Rodríguez
J
J
Larralde
D000818:Animals; D002268:Carboxypeptidases / Q000378:metabolism; D043402:Cathepsin A; D002402:Cathepsin D / Q000378:metabolism; D002403:Cathepsins / Q000378:metabolism*; D002645:Chickens; D007887:Fabaceae; D008099:Liver / Q000187:drug effects / Q000201:enzymology* / Q000254:growth & development; D008297:Male; D009132:Muscles / Q000187:drug effects / Q000201:enzymology*; D009929:Organ Size / Q000187:drug effects; D014674:Plant Proteins, Dietary / Q000494:pharmacology*; D010946:Plants, Medicinal; D014810:Vitamin E / Q000494:pharmacology
D014674:Plant Proteins, Dietary; D014810:Vitamin E; D002268:Carboxypeptidases; D002403:Cathepsins; D043402:Cathepsin A; D002402:Cathepsin D