DYNAMIC OF SEXUAL HORMONS IN COWS, ANTE AND POST PARTUM

PAULA POSAN, ANGELA MARIA STOICA

Abstract


The purpose of this paper was to study the hormones, estrogens (estradiol - E) and progesterone (P) levels modification during gestation and puerperal period, in Romanian Black and White dairy cows, with normal gestations and parturitions and to determine the postpartum start of cyclic ovarian activity and heat manifestation. The hormonal profile, dosing the estrogens and progesterone from sanguine serum was determined using the Estrogen and Progesterone Test Kit. The analyses were done weekly, in the last 2 month of gestation and 1 month after parturition.


Keywords


cows; estrogens; progesterone; gestation; puerperal period

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Scientific Papers Animal Science and Biotechnologies publish open access articles under the terms of the Creative Commons Attribution 4.0 Licence (read full legal code).


LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Faculty of Animal Science and Biotechnologies
300645, Timişoara, Calea Aradului 119, Romania

E-mail: spasb [at] animalsci-tm.ro
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