Refinar búsqueda
Resultados 1-10 de 750
Zinc absorption in the rat determined by radioisotope dilution Texto completo
1979
Evans, Gary W. | Johnson, Elaine C. | Johnson, Phyllis E.
Abstract: Young and mature rats received various levels of dietary zinc for two weeks, and they were then injected intramuscularly with radioactive zinc. After nine days, urine and feces were collected and analyzed for five days, and then the rats were killed for intestine and kidney analysis. The specific radioactivity of these two organs decreased as dietary zinc increased. In both mature rats and young rats fed the highest concentration of dietary zinc, endogenous zinc excretion was greatest. Comparing the same dietary zinc level, mature rats absorbed as much or more zinc than young rats. Zinc homeostasis in rats is maintained by zinc secretion from the intestine rather than by regulating zinc absorption.
Mostrar más [+] Menos [-]Zinc absorption in the rat determined by radioisotope dilution [Dietary zinc metabolism].
1979
Evans G.W. | Johnson E.C. | Johnson P.E.
Blood flow in proximal femur of the dog determined by the local 133Xe injection method.
1979
Lahtinen T. | Alhava E.M. | Hakumaeki M. | Jaeaeskelaeinen J. | Vaeaenaenen A. | Karjalainen P.
The nutritional value of roughages determined in vivo [sheep] and by laboratory methods
1979
Lindgren, E.
The availability of nutrients in the soil as determined by electro-ultrafiltration (EUF) [Soil analysis].
1979
Nemeth K.
The dormancy status of apple buds as determined by an in vitro culture system.
1979
Borkowska B. | Powell L.E.
Geneticheski determinirovannaya spetsifichnost' ehlektroforeticheskogo spektra zeina kukuruzy, soderzhashchej gen Opejk-2.
1979
Pyl'neva P.N.
The migrations of tope, Galeorhinus galeus (L), in the eastern North Atlantic as determined by tagging
1979
Holden, M.J. (Fisheries Lab., Lowestoft (UK)) | Horrod, R.G.
Mise en evidence par capture recaptures et radiotracking du domaine vital chez le sanglier (Sus Scrofa L.) en foret de Chize [France].
1979
Mauget R.
Incidence of ovine progressive pneumonia in the North Dakota State University sheep flocks, determined by agar-gel immunodiffusion.
1979
Molitor T.W. | Light M.R. | Schipper I.A.
