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Abstract

The hypothesis of this study tested whether application of designed treatments to synchronize estrus in nonpregnant previously inseminated lactating dairy cows increased the proportion of nonpregnant cows in estrus before early pregnancy diagnosis on Day 32 after the previous insemination (Day 0)...

Author(s)
Stevenson, J. S.; Sauls-Hiesterman, J. A.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2021, 170, pp 54-66
Abstract

To optimize bovine pregnancy diagnosis (PD) training, factors influencing student performance were investigated. The objective was to determine whether training method, gender, background (farm, urban, or mixed), previous experience in bovine PD, and current career interest influenced the accuracy...

Author(s)
Annandale, A.; Annandale, C. H.; Fosgate, G. T.; Holm, D. E.
Publisher
Association of American Veterinary Medical Colleges, Washington, USA
Citation
Journal of Veterinary Medical Education, 2018, 45, 2, pp 224-231
Abstract

The objective of this study was to evaluate the effect of two prostaglandin F (PGF) treatments 24 h apart (500 μg of cloprostenol) and treatment with a double PGF dose on d 7 (1000 μg of cloprostenol) during a 7-d Ovsynch protocol on progesterone (P4) concentration and pregnancy per artificial...

Author(s)
Tippenhauer, C. M.; Steinmetz, I.; Heuwieser, W.; Fricke, P. M.; Lauber, M. R.; Cabrera, E. M.; Borchardt, S.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2021, 162, pp 49-58
Abstract

Bovine pregnancy diagnosis (PD) by transrectal palpation (TRP) is an important skill for veterinary graduates. Factors influencing students' PD accuracy were investigated to optimize bovine PD by TRP training without increasing live animal exposure. The objective was to determine whether arm length ...

Author(s)
Annandale, A.; Fosgate, G. T.; Eksteen, C. A.; Kremer, W. D. J.; Bok, H. G. J.; Holm, D. E.
Publisher
Association of American Veterinary Medical Colleges, Washington, USA
Citation
Journal of Veterinary Medical Education, 2021, 48, 2, pp 196-210
Abstract

The objective of this study was to explore the cost-effectiveness of using a progesterone-based synchrony program to manage phantom cows on seasonal-calving dairy farms. Phantom cows were defined as cows that had been artificially inseminated ≤14 d after mating start date (MSD), were not...

Author(s)
Chambers, G. P.; O'Sullivan, M. L.; Gates, M. C.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2020, 103, 9, pp 8174-8188
AbstractFull Text

In this study, it was aimed to compare the efficiency of two commercial pregnancy test kits (Bovine Pregnancy Test Kit and Visual Pregnancy Test Kit) based on detection of pregnancy associated glycoproteins, which are pregnancy biomarkers in cattle for early pregnancy diagnosis in the blood plasma...

Author(s)
Kaya, M. S.; Bademkıran, S.; Köse, M.; Uçar, E. H.; Mutlu, H.; Atlı, M. O.
Publisher
Atatürk Üniversitesi Veteriner Fakültesi Yayinidir, Erzurum, Turkey
Citation
Atatürk Üniversitesi Veteriner Bilimleri Dergisi, 2017, 12, 1, pp 45-53
Abstract

The objectives of the present prospective cohort study were to identify risk factors for inflammatory diseases in Holstein-Gyr crossbred dairy cows and characterize the associations of those diseases with pregnancy per embryo transfer (ET). Diseases were diagnosed in the first 60 d postpartum in...

Author(s)
Edelhoff, I. N. F.; Pereira, M. H. C.; Bromfield, J. J.; Vasconcelos, J. L. M.; Santos, J. E. P.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2020, 103, 12, pp 11970-11987
Abstract

Multiple ovulations and so multiple pregnancies have increased recently in dairy cattle. The incidence of the double ovulation impact in high producers at insemination may be over 20%. Twin pregnancies are undesirable as they seriously compromise the welfare and productive lifespan of the cow and...

Author(s)
López-Gatius, F.
Publisher
MDPI AG, Basel, Switzerland
Citation
Animals, 2020, 10, 11,
Abstract

Beef cattle farming is a highly representative activity for the GDP of Brazil, rendering the country an important producer of beef. For Brazil to maintain this prominent position, sanitary management actions must be carried out, such as th e control of reproductive diseases. This study examines the ...

Author(s)
Souza Sartori, G. de; Perucchi, G. R. H.; Pereira, D. R.; Frias, D. F. R.
Publisher
Universidade Federal Rural do Semi-Árido (UFERSA), Mossoro, Brazil
Citation
Acta Veterinaria Brasilica, 2020, 14, 2, pp 92-98
AbstractFull Text

The aim of this study was to apply the pregnancy-associated glycoprotein detection method in order to reduce the time of pregnancy diagnosis. For this purpose, a sandwich ELISA immunosensor was designed for the detection of PAGs and named Nano-kit. Magnetic nanoparticles were used to enhance the...

Author(s)
Ayyoubi, A.; Shakeri, M.; Zhandi, M.; Ghourchian, H.
Publisher
Ferdowsi University of Mashhad, Mashhad, Iran
Citation
Iranian Journal of Animal Science Research, 2019, 11, 1, pp Pe121-Pe132

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