The effect of multiple administration of PGF2alpha to miniature-pig on the kinetics of sex steroid hormone and physiological property

In this study we investigated the effect of PGF2a administration on the kinetics of sex steroid hormone and physiological properties of vagina. PGF2a administrations divided into 5 groups, (1) 1.0 mg PGF2a, (2) 0.5 mg x 2 times given of 12hs. interval, (3) 1.5 x 2, (4) 1.0 mg x 3, (5) no treatment (...

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Published inTokyo Nōgyō Daigaku nōgaku shūhō Vol. 50; no. 2
Main Authors Kuge, T.(Tokyo Univ. of Agriculture (Japan)), Iwata, H, Kuwayama, T, Monji, Y
Format Journal Article
LanguageJapanese
Published 01.09.2005
Subjects
CERDO
CICLO ESTRAL
CYCLE OESTRAL
ESTROGENOS
FONCTION PHYSIOLOGIQUE
FUNCION FISIOLOGICA
OESTROGENE
OESTROGENS
OESTROUS CYCLE
OESTRUS SYNCHRONIZATION
PHYSIOLOGICAL FUNCTIONS
PORCIN
PROGESTERONA
PROGESTERONE
PROSTAGLANDINAS
PROSTAGLANDINE
PROSTAGLANDINS
SINCRONIZACION DEL CELO
SWINE
SYNCHRONISATION DE L'OESTRUS
VAGIN
VAGINA
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Summary:In this study we investigated the effect of PGF2a administration on the kinetics of sex steroid hormone and physiological properties of vagina. PGF2a administrations divided into 5 groups, (1) 1.0 mg PGF2a, (2) 0.5 mg x 2 times given of 12hs. interval, (3) 1.5 x 2, (4) 1.0 mg x 3, (5) no treatment (physiological salt solution=Control) were examined in a total of 10 pigs. In all experimental groups, the concentration of Progesterone (P4) tended to decrease just after PGF2a treatment. But more than 3.0 mg PGF2a decreased and kept the concentration of progesterone at less than 1.0 ng/ml. Estrous cycle of groups (3, 4) were significantly shorter than that of group (1), (12.3+-0.3 days vs. 18.7+-0.9 days, P0.05). In addition, vagina physiological properties of group (3, 4) were normal. In conclusion, multiple administration of PGF2a is useful for the synchronization of pig estrous cycle.
Bibliography:2006003728
L53
ISSN:0375-9202