The objectives of this study were: 1- to evaluate the association of Bovine Viral Diarrhea Virus (BVDV), Bovine Herpes Virus 1 (BoHV-1), and Neospora caninum (N. caninum) with the risk for Late Embryonic Loss (LEL) in grazing dairy cows, 2- to evaluate blood progesterone concentration at the time...
Author(s)
Quintero Rodríguez, L. E.; Domínguez, G.; Alvarado Pinedo, M. F.; Travería, G. E.; Moré, G.; Campero, L. M.; Sota, R. L. de la; Madoz, L. V.; Giuliodori, M. J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2022, 194, pp 126-132
High reproductive rate is an important guarantee for enhancing the economic benefits of dairy farms, and early pregnancy diagnosis is one of the important means in improving the reproductive rate of dairy cows. It is difficult for traditional pregnancy diagnosis methods to determine the pregnancy...
Author(s)
Wei ShihAo; Dai TianShu; Wang Feng; Shi YuanGang; Ma Yun; Dan XingAng
Publisher
Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
Citation
Acta Veterinaria et Zootechnica Sinica, 2022, 53, 7, pp 2047-2056
The objective of this study was to evaluate the use of luteal color doppler (CD) ultrasonography and plasma concentrations of pregnancy-associated glycoproteins (PAG) for early pregnancy diagnosis in Bos taurus beef cows. Additionally, CD and PAG were evaluated as potential predictors of late...
Author(s)
Holton, M. P.; Oosthuizen, N.; Melo, G. D. de; Davis, D. B.; Stewart, R. L., Jr.; Pohler, K. G.; Lamb, G. C.; Fontes, P. L. P.
Publisher
Oxford University Press, Cary, USA
Citation
Journal of Animal Science, 2022, 100, 2,
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
Circulating microRNAs (miRNAs) have been used as biomarkers for various diseases and physiological conditions in humans and mice; studies in domestic animals, particularly cattle, are limited. The importance of early pregnancy diagnosis (especially within the 21-d cow estrous cycle) in the...
Author(s)
Ono, K.; Okamoto, S.; Ninomiya, C.; Toji, N.; Kanazawa, T.; Ishiguro-Oonuma, T.; Takahashi, T.; Iga, K.; Kizaki, K.
Publisher
Elsevier Inc, New York, USA
Citation
Domestic Animal Endocrinology, 2022, 79,
We tested in dairy lactating cows the hypotheses: (1) that starting the resynchronization (Resynch) of ovulation for timed-artificial insemination (TAI) 17 days after TAI (Super-Early Resynch) improves the reproductive efficiency compared to the traditional resynch starting at day 31 after TAI; and ...
Publisher
Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, São Paulo, Brazil
Citation
Impactos da antecipação da ressincronização da ovulação pela detecção precoce de vacas leiteiras não gestantes com a ultrassonografia Doppler, 2022, pp 59 pp.
This study evaluates whether the foot-and-mouth disease (FMD) vaccination increases pregnancy failures in Bos taurus beef cows. A total of 3,379 cows were assigned to two experimental groups to receive (n = 1,722) or not receive (n = 1,657) a FMD vaccine (commercial preparation containing FMD...
Author(s)
Garcia-Pintos, C.; Riet-Correa, F.; Menchaca, A.
Publisher
Frontiers Media S.A., Lausanne, Switzerland
Citation
Frontiers in Veterinary Science, 2021, 7, November,
This experiment evaluated pregnancy rates to fixed-time artificial insemination (FTAI) in Bos indicus beef cows according to their body condition score (BCS) at calving and subsequent change until 30 days after FTAI. Non-pregnant, suckling Nelore cows (n = 593 primiparous, 461 secundiparous, and...
Author(s)
Carvalho, R. S.; Cooke, R. F.; Cappellozza, B. I.; Peres, R. F. G.; Pohler, K. G.; Vasconcelos, J. L. M.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2022, 243,
Many studies have been conducted to estimate pregnancy losses between 19 and 34 d after artificial insemination (AI) in dairy cows managed under confinement-based systems, but few studies have examined embryo mortality during this interval in dairy cows managed under gazing systems. The objectives...
Author(s)
Madoz, L. V.; Lorenti, S. N.; Rearte, R.; Quintero-Rodriguez, L.; Migliorisi, A. L.; Jaureguiberry, M.; Gabler, C.; Drillich, M.; Sota, R. L. de la
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2022, 105, 8, pp 6973-6984
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