Zobrazeno 1 - 10
of 213
pro vyhledávání: '"G, Pethes"'
Publikováno v:
Zentralblatt für Veterinärmedizin Reihe A. 32:289-296
Summary Seven cows deficiently supplied with β-carotene were used in an experiment in which 3 animals were given 500 mg synthetic β-carotene daily for two months, while the other 4 cows served as unsupplemented controls. The cows were synchronized
Publikováno v:
Zentralblatt für Veterinärmedizin Reihe A. 32:512-517
Summary The thyroid hormone economy of lactating cows supplied with beta-carotene or vitamin-A was investigated by means of in vitro 5′-monodeiodinase assay. Liver biopsy samples were taken together with blood samples within ten days after parturit
Publikováno v:
Acta Medica Scandinavica. 163:21-29
Publikováno v:
DTW. Deutsche tierarztliche Wochenschrift. 98(2)
The levels of the two primary bile acids, cholic acid (CA) and chenodeoxycholic acid (CDCA), were determined by radioimmunoassay in cattle, horse, pig and dog serum. The mean serum cholic acid (SCA) and deoxycholic acid (SCDCA) levels of cows varied
Publikováno v:
Acta veterinaria Hungarica. 38(1-2)
Autor:
Peter Rudas, G. Pethes
Publikováno v:
Comparative Biochemistry and Physiology Part A: Physiology. 77:567-571
1. 1. Evidence is obtained for a major role of thyroxine to triiodothyronine (and/or reverse-triiodothyronine) conversion in the early phase of cold and warm acclimation. 2. 2. The short term change in deiodination seems to be the first response to c
Publikováno v:
Journal of Dairy Science. 68:1148-1154
Eighty-six cows were assigned to two equal groups with group A fed according to National Research Council recommendations for total digestible nutrients for the 8 wk before parturition and group B was fed 21% higher energy in the first 6 wk and 15% h
Autor:
G. Pethes, Peter Rudas
Publikováno v:
General and Comparative Endocrinology. 63:408-413
The effect of acute cold (10°) exposure on the tissue level of triiodothyronine (T 3 ) and on the conversion of thyroxine (T 4 ) to triiodothyronine, both in vitro and in vivo , has been investigated in young chickens previously thyroidectomized or
Publikováno v:
Journal of Endocrinology. 87:55-63
The concentrations of progesterone, testosterone, oestrone, oestradiol, thyroxine (T4) and tri-iodothyronine (T3) in the plasma of 8-week-old female Japanese quail exposed to short (6 h light: 18 h darkness; 6L: 18D) and long (18L: 6D) photoperiods w
Autor:
G. Pethes, Peter Rudas
Publikováno v:
General and Comparative Endocrinology. 54:154-161
The possibility of conversion of L-thyroxine (T4) to L-3,5,3'-triiodothyronine (T3) and to 3,3',5'-triiodothyronine (reverse-T3, r-T3) has been investigated in chickens. Reverse-T3 could not be detected in normal animals. Both thyroidectomized and no