Changes in periestrous hormonal profile in blood of gilts with different thyroid function and ovarian cysts

• Autorzy: Fitko R. , Jana B. , Kucharski J. , Sobczak J.
• Języki publikacji: EN

Abstrakty

EN

The subject of this wprk was the investigation of luteinizing hormone, progesterone, testosterone and total estrogens concentration in the peripheral plasma of 56 gilts with experimentally-induced hypo- and hyperthyroidism and with ovarian cystic degeneration. The blood samples were collected from the cannulated jugular vein at 19-23 days after last natural estrus, 5-10 times daily. The experiments resulted in significant deviations in plasma hormone profile during the periestrous period. The hypothyroid gilts showed a significant increase but hyperthyroid animals a decrease in level of LH accompanied by a significant peak of estrogens on the 22nd day of cycle. The cyst-bearing gilts exhibited a decreased level of LH, an increased concentration of progesterone and a changeable content of estrogens. It may be suggested that abnormalities in hormonal pattern in experimental gilts were caused by derangement of functional interrelationships in the pituitary-thyroid-ovarian axis which influence sex hormone synthesis and release.

Słowa kluczowe

EN

progesterone; blood; animal; gilt blood; cystic ovarian disease; thyroid function; hormone equilibrium; estrogen; ovarian cyst; euthyroid gilt; hormone analysis; hypothyroid gilt; hyperthyroid gilt

• Wydawca: -
• Czasopismo: Polish Journal of Veterinary Sciences
• Rocznik: 1998
• Tom: 01
• Numer: 1
• Opis fizyczny: p.3-9,fig.

Twórcy

autor

Fitko R.

• Polish Academy of Sciences, 10-718 Olsztyn, Prawochenskiego 5, Poland

autor

Jana B.

autor

Kucharski J.

autor

Sobczak J.