Reference : Comparison of ultrasonography, bovine pregnancy specific B, and bovine pregnancy-associa...
Scientific journals : Article
Life sciences : Veterinary medicine & animal health
http://hdl.handle.net/2268/6841
Comparison of ultrasonography, bovine pregnancy specific B, and bovine pregnancy-associated glycoprotein 1 test for pregnancy detection in dairy cows
English
Szenci, Otto mailto [University of Veterinary Science, Budapest, Hungary > Dept. of Obstetrics and Reproduction > > >]
Beckers, Jean-François mailto [Université de Liège - ULg > Département de sciences fonctionnelles > Physiologie de la reproduction >]
Humblot, Patrice [UNCEIA, Maisons-Alfort, France > Services Techniques > > >]
Sulon, Joseph [Université de Liège - ULg > Département de sciences fonctionnelles > Physiologie de la reproduction >]
Sasser, G. [University of Idaho Moscow ID83843, USA > Dept. of Animal and Veterinary Science > > >]
Taverne, Marcel mailto [University of Utrecht - Utrecht - The Netherlands > Dept. of Herd Health and Reproduction > > >]
Varga, J. [University of Animal Science - Budapest - Hungary > Dept of Obstetrics and Reproduction > > >]
Baltusen, R. [University of Utrecht - Utrecht - The Netherlands > Dept of Herd Health and Reproduction > > >]
Schekk, Gy [University of Veterinary Science - Budapest - Hungary > Dept of Obstetrics and Reproduction > > >]
Jul-1998
Theriogenology
Elsevier
50
1
77-88
Yes (verified by ORBi)
International
0093-691X
New York
NY
[en] Pregnancy diagnosis ; Cattle ; Ultrasonography ; bPSPB ; bPAG1
[fr] Diagnostic de gestation ; Bovins ; Echographie ; bPSPB ; bPAG1
[en] At Days 26 to 58 after AI, 138 Holstein-Friesian dairy cows were repeatedly examined by ultrasonography, using a 7.5 MHz linear-array rectal transducer. The total calving rate was 37.6% (52/138), and late embryonic mortality occurred 8.6% of the cows (12/138). On the days of ultrasound scanning, blood samples were drawn from the jugular vein for measuring the concentration of bovine pregnancy-specific protein B (bPSPB) and bovine pregnancy-associated glycoprotein 1 (bPAG 1). When compared with calving results, there were no significant differences in accurate diagnosis of pregnant cows were found between the 3 methods. However, when recognition of an embryo proper with a beating heart was used as the criterion for positive ultrasonographic diagnosis significantly fewer (P<0.001) pregnant cows were correctly identified than by the other 2 tests. When compared with the noncalving cows, significantly fewer (P<0.001) false positive diagnoses were made by the 2 ultrasonographic tests than by the PSPB and bPAG 1 tests, while significantly fewer (P<0.001) false positive diagnoses were made by the bPSPB test than by the bPAG 1 test. The accuracy of detecting nonpregnant animals by both protein tests was limited by the relatively long half-life of these proteins after calving and by early embryonic mortality.
Hungarian Research Fund, Grant number OTKAT016901, IRSIA and FNRS
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/6841

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