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Pregled bibliografske jedinice broj: 495130

The efficacy of milk ejection induced by luteal oxytocin as a method of early pregnancy diagnostics in cows


Grizelj, Juraj; Katana, Blažan; Dobranić, Tomislav; Prvanović, Nikica; Lipar, Marija; Vince, Silvijo; Stanin, Damir; Đuričić, Dražen; Gregurić Gračner Gordana; Samardžija, Marko
The efficacy of milk ejection induced by luteal oxytocin as a method of early pregnancy diagnostics in cows // Acta veterinaria (Beograd), 60 (2010), 5-6; 551-561 doi:10.2298/AVB1006551G (međunarodna recenzija, članak, znanstveni)


Naslov
The efficacy of milk ejection induced by luteal oxytocin as a method of early pregnancy diagnostics in cows

Autori
Grizelj, Juraj ; Katana, Blažan ; Dobranić, Tomislav ; Prvanović, Nikica ; Lipar, Marija ; Vince, Silvijo ; Stanin, Damir ; Đuričić, Dražen ; Gregurić Gračner Gordana ; Samardžija, Marko

Izvornik
Acta veterinaria (Beograd) (0567-8315) 60 (2010), 5-6; 551-561

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Cow; luteal oxytocin; milk progesterone; pregnancy diagnosis

Sažetak
The aim of research was to determine the accuracy and reliability of the early diagnosis of pregnancy in cows using PGF2α analogue. Namely in case of corpus luteum (CL) presence, the release of luteal oxytocin is induced by intravenous administration of a non luteolytic dose of PGF2α. The research was performed in 30 lactating cows, 18-22 days after insemination, and three hours prior to the evening milking. A teat cannula is placed in the left fore-teat. When the cisternal milk flow ceased, a Dinoprost (256μg Dinolytic) was injected in v. jugularis. If CL was present, the alveolar milk flow (559.4±83.7 ml) started 189±18 s later and early pregnancy could be presumed. If CL was no longer functional, the milk flow did not start again and the cow was considered not pregnant. Seventeen out of 30 cows was confirmed pregnant 35 days after insemination by ultrasound and 13 were not found pregnant. The accuracy of positive results is 100% and is identical to that obtained by ELISA of milk progesterone used as a reference method. The accuracy of negative results was lower (46.1% vs. 84.6%) (P<0.05), because seven non pregnant cows out of 13 which has responded to milk ejection test. In spite of this disadvantage, the test approved as being inexpensive, rapid, and easy to interpret and is therefore very applicable, especially under field conditions. It can be applied i.e. 20 days after insemination. Progesterone rapid test from milk or by milk ejection test can be used with similar accuracy.

Izvorni jezik
Engleski

Znanstvena područja
Veterinarska medicina



POVEZANOST RADA


Projekt / tema
053-0000000-3645 - Optimizacija superovulacije i krioprezervacija kozjih zametaka (Juraj Grizelj, )
053-0010501-1977 - Urođene i stečene deformacije skeletno-mišićnog sustava u riba (Damir Stanin, )
053-0531863-1861 - Klamidioza ptica i sisavaca (Ksenija Vlahović, )
053-0532052-2040 - Značaj kontrole puerperija u poboljšanju reproduktivne učinkovitosti krava (Tomislav Dobranić, )
053-0532052-2044 - Program suzbijanja mastitisa (Goran Bačić, )

Ustanove
Veterinarski fakultet, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Uključenost u ostale bibliografske baze podataka:


  • CAB Abstracts
  • Journal Citation Reports


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