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THE LEVELS OF THE CONCENTRATION OF THIROXINE IN THE SERUM OF LACTATING COWS DURING THE SEXUAL CYCLE

Boris Angelov ; Viša zemjodelska škola, Bitola, Makedonija

Puni tekst: hrvatski, pdf (2 MB) str. 225-235 preuzimanja: 63* citiraj
APA 6th Edition
Angelov, B. (1991). RAZINE KONCENTRACIJE TIROKSINA U SERUMU LAKTIRAJUĆIH KRAVA TIJEKOM SPOLNOG CIKLUSA. Stočarstvo, 45 (7-8), 225-235. Preuzeto s https://hrcak.srce.hr/162250
MLA 8th Edition
Angelov, Boris. "RAZINE KONCENTRACIJE TIROKSINA U SERUMU LAKTIRAJUĆIH KRAVA TIJEKOM SPOLNOG CIKLUSA." Stočarstvo, vol. 45, br. 7-8, 1991, str. 225-235. https://hrcak.srce.hr/162250. Citirano 04.03.2021.
Chicago 17th Edition
Angelov, Boris. "RAZINE KONCENTRACIJE TIROKSINA U SERUMU LAKTIRAJUĆIH KRAVA TIJEKOM SPOLNOG CIKLUSA." Stočarstvo 45, br. 7-8 (1991): 225-235. https://hrcak.srce.hr/162250
Harvard
Angelov, B. (1991). 'RAZINE KONCENTRACIJE TIROKSINA U SERUMU LAKTIRAJUĆIH KRAVA TIJEKOM SPOLNOG CIKLUSA', Stočarstvo, 45(7-8), str. 225-235. Preuzeto s: https://hrcak.srce.hr/162250 (Datum pristupa: 04.03.2021.)
Vancouver
Angelov B. RAZINE KONCENTRACIJE TIROKSINA U SERUMU LAKTIRAJUĆIH KRAVA TIJEKOM SPOLNOG CIKLUSA. Stočarstvo [Internet]. 1991 [pristupljeno 04.03.2021.];45(7-8):225-235. Dostupno na: https://hrcak.srce.hr/162250
IEEE
B. Angelov, "RAZINE KONCENTRACIJE TIROKSINA U SERUMU LAKTIRAJUĆIH KRAVA TIJEKOM SPOLNOG CIKLUSA", Stočarstvo, vol.45, br. 7-8, str. 225-235, 1991. [Online]. Dostupno na: https://hrcak.srce.hr/162250. [Citirano: 04.03.2021.]

Sažetak
By using the RIA method the total quantity of thiroxine (T4) i the blood serum of lactating cows of east-Friesian breed, in various seasons, during a three year period was investigated. During all staqes of estral cycle (0 day of estrus, 4-7 day of metestrus, 12-14
day of diestrus and 18-20 day of proestrus) the blood samples were taken. Test-kits of Yugoslavian production, for use in human medicine were applied, without previous valorization and adaption to use in veterinary practice. The basic statistical elaboration of the data (F test) showed that the total T4 in younger cows wak at a higher level as compared to elder ones, (from the first to the, fourth lactation, the TT4 concentration decreased). The established average level of X =52,580 ± 1,798 nmol/l coincides with the physiology values revealed by various authors for this kind, category, and breed os animals. By laboratory research of 238 samples of blood serum, significant differences were established between foliculin and luteal phases (higher level in estrus and protestrus) in warmer seasons. These differences are not significant in cooler seasons. These data are in contradiction with the data of other groups and are not in agreement with the tendencies established by average values for all the groups tested. (x=54,683 nmol/L; X=52,344 nmol/L; x=50,754 nmol/L; X = 52,586 nmol/l for estrus, metestrus, diestrus and proestrus respectively.

Hrčak ID: 162250

URI
https://hrcak.srce.hr/162250

[hrvatski]

Posjeta: 168 *