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Searches on the application of a method of induction and syncronization of estrus in cows postpartum based on two doses of GnRH and prostaglandin F2 α, with programmed insemination

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dc.contributor.author Ruginosu, Elena
dc.contributor.author Borș, S.I
dc.contributor.author Creangă, Ș.
dc.contributor.author Dascălu, D.L.
dc.contributor.author Davidescu, Mădălina Alexandra
dc.date.accessioned 2021-05-11T05:55:38Z
dc.date.available 2021-05-11T05:55:38Z
dc.date.issued 2017
dc.identifier.citation Ruginosu, Elena, S.I Borș, Ș. Creangă, D.L. Dascălu, Mădălina Alexandra Davidescu. 2017. "Searches on the application of a method of induction and syncronization of estrus in cows postpartum based on two doses of GnRH and prostaglandin F2 α, with programmed insemination". Lucrări Științifice USAMV - Iași Seria Medicină Veterinară 60 (3): 338-345. en_US
dc.identifier.uri https://repository.uaiasi.ro/xmlui/handle/20.500.12811/1198
dc.description.abstract The researches were realized in the dairy cattle farm from S.C.D.C.B. Dancu, Iasi, on an experimental lot, composed of 41 cows of Romanian Black Spotted breed (BNR), (Lot E), compared to a control group composed of 45 cows (Lot M). The purpose of this study was to determine the effectiveness of using a new protocol for the induction and synchronization of estrus at dairy cows, using the hormonal products, such as GnRH and PGF2α. The treatments applied to the cows from the experimental group were performed between 31.01.2017 and 23.06.2017, within an average value of 52 days after calving. The therapeutic protocol consisted in the following: administration of the first dose of GnRH (2.5 ml, Receptal=10 μg Buserelin, intramuscularly) on day 0, (regardless of the stage of the estrous cycle); administration of one dose PGF2α (2ml Estrumate=500 mcg Cloprostenol) on the seventh day; administration of the second dose of GnRH on the ninth day and artificial insemination at 18-24 hours after the second dose of GnRH, (without estrus detection). The application of this therapeutic protocol for estrus induction and synchronization at dairy cows with two doses of GnRH and PGF2α in the 45-80 days postpartum period has reduction effects of the intervals: calving to the first insemination and conception, with a positive impact on the reproductive management of dairy farms and the economic implications by the reduction of unproductive costs and of the workforce for the detection of cows estrus. en_US
dc.language.iso en en_US
dc.publisher ”Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iași en_US
dc.subject dairy cows en_US
dc.subject estrus induction and synchronization en_US
dc.subject GnRH en_US
dc.subject prostaglandin F2α en_US
dc.subject fertility en_US
dc.title Searches on the application of a method of induction and syncronization of estrus in cows postpartum based on two doses of GnRH and prostaglandin F2 α, with programmed insemination en_US
dc.type Article en_US
dc.author.affiliation Elena Ruginosu, S.I Borș, Ș. Creangă, D.L. Dascălu, Mădălina Alexandra Davidescu, Stațiunea de Cercetare Dezvoltare pentru Creșterea Bovinelor Dancu, Loc. Dancu, jd. Iași
dc.publicationName Lucrări Științifice USAMV - Iași, Seria Medicină Veterinară
dc.volume 60
dc.issue 3
dc.publicationDate 2017
dc.startingPage 338
dc.endingPage 345
dc.identifier.eissn 2393-4603


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