1997, Number 3
Interrelation between selenium, iron and zinc contents in blood and hair of horses to heart recuperation time after physical excercise
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ABSTRACTThe task of this research was to correlate blood selenium, iron and zinc content of horses to the recuperation time after physical excercise measured by cardiac frequency. Mean blood Se (73 ng/ml), Fe (52.3 µg/ml), Zn (3.5 µg/ml) and hair Se (440 ng/g), Fe (3.8 µg/g) and Zn (9.3 µg/g) contents were measured by atomic absorption spectrophotometry in 10 to 11 year old crossbreed horses. Mean cardiac basal frequency was 37/minute. Besides, the overall mean cardiac frequency after one hour of physical excersise was recovered to basal frequency in 37 minutes. Mean selenium content (115 ng/ml) and iron (62 µg/ml were found in those horses with the fastest recuperation rate 20 minutes afterwards. Nevertheless, those horses with 60 ng Se/ml and 49 µg Fe/ml recovered 40 minutes afterwards. Blood selenium content was different among horses (it varied from 115 to 60 ng/ml) receiving the same feed. Blood Zn content did not correlate with the recuperation time.
Aluja, A.S. de y Adame, P.: Miopatía degenerativa en becerros. Vet. Méx., 8: 2-12 (1977).
Biel, M., Lawrence, L., Novakofski, J., Kline, K., McLaren, D., Moser, L. and Powell, D.: The effect of yeast culture supplementation on exercising horses. University of Illinois, Urbana, Illinois, 1985.
Blackmore, D.J., Wilett, K. and Agness, D.: Selenium and gammaglutamyl transferase activity in the serum of thoroughbreds. Res. vet. Sci., 26: 76-80 (1979).
Coe, H.P., Maas, J., Reynolds, J. and Garner, I.: Randomized field trial to determine the effects of oral selenium supplementation on milk production and reproductive performance of Holstein heifers. J Am. vet. med. Ass., 202: 875-881 (1993).
Combs J., G.F., Noguchi, T. and Scott, M.L.: Mechanism of action of selenium and vitamin E in protection of biological membranes. Fed. Proc., 34: 2090-2095 (1975).
Edmondson, J.A., Norman, B.B. and Suther, D.: Survey of srate veterinarians and state veterinary. diagnostic laboratories for selenium deficiency and toxicosis in animals. J. Am. vet. med. Ass., 202: 865-872 (1993).
Hafeman, D.G., Sunde, R.A. and Hoekstra, W.G.: Effect of dietary selenium on erythrocyte and glutathioneperoxidase in the rat. J. Nutr., 104: 580-587 (1974).
Higuchi, T., Ichijo, S., Osame, S. and Ohishi, H.: Studies on serum selenium and tocopherol in white muscle disease of foal. J. Jpn. vet. Sci., 51: 52-59 (1989).
Johnson, R.: Estadística Elemental. Trillas, México, D.F., 1991.
Knight, D.A. and Tyznik, W.J.: The effect of dietary selenium on humoral immunocompetence of ponies. J. Anim. Sci., 68: 1311-1317 (1990).
Maylin, G.A., Rubin, D.S. and Lein, D.H.: Selenium and vitamin E in horses. J. Cornell Vet., 70: 272-289 (1980).
Moore, M.R. and Kohn, W.C.: Nutritional muscular dystrophy in foals. Comp. Equine., 13: 476-484 (1991).
Morales, Q.L.M.: Análisis comparativo de elementos minerales esenciales en pelo y sangre de caballos que residen en el Distrito Federal. Tesis de licenciatura. Fac. de Med. Vet. y Zoot. Universidad Nacional Autónoma de México. México, D.F., 1989.
Rotruck, J.T., Pope, A.L., Ganther, H.E., Hafeman, D.G. and Hoekstra, W.G.: Selenium: Biochemical role as a component of glutathione peroxidase. Scicnce, 179: 588-590 (1973).