Induction and synchronization of estrus in dairy cows using a single injection of PGF2α and GnRH | Zendy

E. Mujić | Zendy; Stoja Jotanović | Zendy; Drago Nedić | Zendy; Milorad Tešić | Zendy; Refik Šahinović | Zendy; Marinko Vekić | Zendy; Husein Vilić | Zendy

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Induction and synchronization of estrus in dairy cows using a single injection of PGF2α and GnRH

Author(s) -

E. Mujić,

Stoja Jotanović,

Drago Nedić,

Milorad Tešić,

Refik Šahinović,

Marinko Vekić,

Husein Vilić

Publication year - 2012

Publication title -

acta veterinaria

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.308

H-Index - 17

eISSN - 1820-7448

pISSN - 0567-8315

DOI - 10.2298/avb1206591m

Subject(s) - estrous cycle , estrus synchronization , zoology , post partum , prostaglandin f , significant difference , fertility , prostaglandin , medicine , endocrinology , andrology , biology , hormone , pregnancy , population , ovulation , genetics , environmental health

The aim of this study was to examine the effects of treatment with a single injection of GnRH and PGF2α on estrous response, fertility and service period. A total of 120 lactating Simmental cows were divided into four groups of 30 cows each: group PGF2α 40 was treated on the 40th day post partum with a single injection of 2 mL prostaglandin analogue (Estrumate), group PGF2α 50 was treated in the same way on the 50th day, group GnRH was treated on the 40th day post partum with a single injection of 2 mL GnRH analogue (Receptal), and the fourth group (control) was not hormonally treated. Fertility of cows was not significantly different (p>0.05). The difference in the estrous response and service-period between the control group and experimental groups was statistically significant (p<0.01)

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