Superovulatory response, anti-Müllerian hormone concentration and antral follicle count in Holstein cattle with short or long anogenital distance
Author(s): I. Rajesh, M.G. Colazo, M. Gobikrushanth, J.E. Carrelli, M. Oba, D.J. Ambrose
Publication Date:
11/3/2022
Publication: Theriogenology
Volume: 195
Page Numbers: 249-256
Effects of dietary butyrate supplementation and oral non-steroidal anti-inflammatory drug administration on uterine inflammation and interval to first ovulation in postpartum dairy cows
Author(s): L.A. Engelking, M. Gobikrushanth, M. Oba, D. J. Ambrose
Publication Date:
6/17/2022
Publication: JDS Communications
Evaluating automated infrared thermography and vulva exposure tracking as components of an estrus detection platform in a commercial dairy herd
Author(s): Perez-Marquez H.J., A. Schaefer, H. Von Gaza, D.J. Ambrose; C.J. Bench; N. Cook
Publication Date:
6/9/2022
Publication: Animal
Page Numbers: Accepted
Anogenital distance is associated with resumption of cyclicity, intensity of estrous expression, ovulation, and progesterone concentrations in lactating Holstein cows.
Author(s): A.M.L.Augusto, T.A.Burnett, J.E.Carrelli, M.Gobikrushanth, R.L.A.Cerri, D.J.Ambrose
Publication Date:
6/1/2022
Publication: Journal of Dairy Science
Page Numbers: Accepted
Associations between anogenital distance and measures of fertility in lactating North American Holstein cows: A validation study
Author(s): J. E. Carrelli, M. Gobikrushanth, M. Corpron, W. Sandberg, I. Rajesh, A. Ahmadzadeh, M. Oba, and D. J. Ambrose
Publication Date:
5/19/2022
Publication: Journal of Dairy Science
Volume: 105
Page Numbers: 6339-6352
Effects of dietary butyrate supplementation and oral non-steroidal anti-inflammatory drug administration on serum inflammatory markers and productivity of dairy cows during the calving transition
Author(s): L.A. Engelking, D. J. Ambrose, M. Oba
Publication Date:
3/17/2022
Publication: Journal of Dairy Science
Volume: 105
Page Numbers: 4144-4155
Repeatability of anogenital distance measurements from birth to maturity and at different physiological states in female Holstein cattle
Author(s): Rajesh, I., M. Gobikrushanth, J. E. Carrelli, M. Oba, D. J. Ambrose
Publication Date:
1/12/2022
Publication: Journal of Dairy Science
Volume: 105
Evaluation of infrared thermography combined with behavior biometrics for estrus detection in naturally cycling dairy cows
Author(s): H.J. Perez Marquez, D.J. Ambrose, A. L. Schaefer, N. J. Cook, C. J. Bench
Publication Date:
6/23/2021
Publication: Animal
Volume: 15
Issue: 7
Page Numbers: 100205
Relationship of anogenital distance with fertility in nulliparous Holstein heifers
Author(s): J.E. Carrelli, M. Gobikrushanth, M. Corpron, I. Rajesh, W. Sandberg, M.G. Colazo, A. Ahmadzadeh, M. Oba, and D.J. Ambrose
Publication Date:
4/14/2021
Publication: Journal of Dairy Science
Volume: 104
Page Numbers: 8256-8264
Differing planes of pre- and postweaning phase nutrition in Holstein heifers: II. Effects on circulating leptin, luteinizing hormone, and age at puberty
Author(s): T.C. Bruinjé, J.P. Rosadiuk, F. Moslemipur, H. Sauerwein, M.A. Steele, D.J. Ambrose
Publication Date:
10/29/2020
Publication: Journal of Dairy Science
Volume: 104
Page Numbers: 1153-1163
Differing planes of pre- and postweaning phase nutrition in Holstein heifers: I. Effects on feed intake, growth efficiency, and metabolic and development indicators
Author(s): J.P. Rosadiuk, T.C. Bruinjé, F. Moslemipur, A.J. Fischer-Tlustos, D.L. Renaud, D.J Ambrose, M.A. Steele
Publication Date:
10/14/2020
Publication: Journal of Dairy Science
Volume: 104
Page Numbers: P1136-1152
Prostaglandin F2ɑ induced luteolysis is delayed but not prevented by acute administration of luteotropic drugs in lactating non-pregnant Holstein cows
Author(s): D.J. Ambrose*, M.G. Colazo, M. Gobikrushanth
Publication Date:
12/1/2019
Publication: Clinical Theriogenology
Volume: 11
Issue: 4
Page Numbers: 599-606
Anti-Müllerian hormone (AMH) in grazing dairy cows: Identification of factors affecting plasma concentration, relationship with phenotypic fertility, and genome-wide associations
Author(s): M. Gobikrushanth, D. C. Purfield, E. R. Canadas, M. M. Herlihy, J. Kenneally, M. Murray, F. J. Kearney, M. Colazo, D.J. Ambrose, S.T. Butler
Publication Date:
9/11/2019
Publication: Journal of Dairy Science
Volume: 102
Page Numbers: 11622-11635
Carryover effects of pre- and post-weaning planes of nutrition on reproductive tract development and estrous cycle characteristics in Holstein heifers
Author(s): T.C. Bruinjé, J.P. Rosadiuk, F. Moslemipur, J.E. Carrelli, M.A. Steele, D.J. Ambrose
Publication Date:
9/11/2019
Publication: Journal of Dairy Science
Volume: 102
Page Numbers: 10514-29
Infrared thermography and behavioral biometrics associated with estrus indicators and ovulation in estrus synchronized dairy cows housed in tie-stalls
Author(s): H. J. Perez Marquez, D. J. Ambrose, A. L. Schaefer, N. J. Cook, C. J. Bench
Publication Date:
3/15/2019
Publication: Journal of Dairy Science
Volume: 102
Page Numbers: 4427-40
Effects of supplementing a Saccharomyces cerevisiae fermentation product during periparturient period on performance of dairy cows fed fresh diets differing in starch content
Author(s): W. Shi, C. E. Knoblock, K. V. Murphy, T. C. Bruinjé, I. Yoon, D. J. Ambrose, M. Oba
Publication Date:
2/7/2019
Publication: Journal of Dairy Science
Volume: 102
Page Numbers: 3082-96
Validation of an automated in-line milk progesterone analysis system to diagnose pregnancy in dairy cattle
Author(s): T. C. Bruinjé, D. J. Ambrose
Publication Date:
2/1/2019
Publication: Journal of Dairy Science
Volume: 102
Page Numbers: 3625-3631
The effects of amount of milk fed, and starter intake, on performance of group-housed dairy heifers during the weaning transition
Author(s): J. Haisan, M. A. Steele, D. J. Ambrose, M. Oba
Publication Date:
1/30/2019
Publication: Professional Animal Scientist
Volume: 35
Page Numbers: 88-93
The relationship between anogenital distance and fertility, and genome-wide associations for anogenital distance in Irish Holstein-Friesian cows
Author(s): Gobikrushanth M, Bruinjé T. C., Colazo M. G., Ambrose D. J., and Butler S. T
Publication Date:
12/26/2018
Publication: Journal of Dairy Science
Volume: 102
Page Numbers: 1702-11
Morphology, membrane integrity, and mitochondrial function in sperm of crossbred beef bulls selected for residual feed intake.
Author(s): T.C. Bruinjé, , P. Ponce-Barajas, A. Dourey, M. G. Colazo, T. Caldwell, Z. Wang, S. P. Miller, D. J. Ambrose
Publication Date:
12/18/2018
Publication: Canadian Journal of Animal Science
Using in-line milk progesterone data to characterize parameters of luteal activity and their association with fertility in Holstein cows
Author(s): T.C. Bruinjé, M.G. Colazo, E.S. Ribeiro, M. Gobikrushanth, D.J. Ambrose
Publication Date:
10/18/2018
Publication: Journal of Dairy Science
Volume: 102
Page Numbers: 780-98
Characterization of anogenital distance and its relationship to fertility in lactating Holstein cows
Author(s): M. Gobikrushanth, T. C. Bruinjé, M. G. Colazo, S. T. Butler, and D. J. Ambrose
Publication Date:
12/1/2017
Publication: Journal of Dairy Science
Volume: 100
Page Numbers: 9815-9823
Dynamics of pre- and post-insemination progesterone profiles and insemination outcomes determined by an in-line milk analysis system in primiparous and multiparous Canadian Holstein cows.
Author(s): T.C. Bruinje, M. Gobikrushanth, M.G. Colazo, D.J. Ambrose
Publication Date:
10/15/2017
Publication: Theriogenology
Volume: 102
Page Numbers: 147-153
Relationships among early postpartum luteal activity, parity, and insemination outcomes based on in-line milk progesterone profiles in Canadian Holstein cows.
Author(s): T. C. Bruinjé, M. G. Colazo, M. Gobikrushanth, D. J. Ambrose
Publication Date:
9/15/2017
Publication: Theriogenology
Volume: 100
Page Numbers: 32-41
Dairy cows continuously-housed in tie-stalls failed to manifest activity changes during estrus
Author(s): C.A. Felton, M.G. Colazo, P. Ponce-Barajas, C.J. Bench, D.J. Ambrose
Publication Date:
2012
Publication: Canadian Journal of Animal Science
Volume: 92
Page Numbers: 186-196
Neither duration of progesterone insert nor initial GnRH treatment affected pregnancy per timed-insemination in dairy heifers subjected to a Co-synch protocol
Author(s): M.G. Colazo, D.J. Ambrose
Publication Date:
2011
Publication: Theriogenology
Volume: 76
Page Numbers: 578-588
Relationships between endometrial cytology and interval to first ovulation, and pregnancy in postpartum dairy cows in a single herd
Author(s): A. Dourey, M.G. Colazo, P. Ponce-Barajas, D.J. Ambrose
Publication Date:
2011
Publication: Research in Veterinary Science
Volume: 91
Page Numbers: 149-153
The applications of timed artificial insemination and timed embryo transfer in reproductive management of dairy cattle
Author(s): D.J. Ambrose, M.G. Colazo, J.P. Kastelic
Publication Date:
2010
Publication: Revista Brasileira de Zootecnia
Volume: 39
Page Numbers: 383-392
Plasma luteinizing hormone concentrations in cows given repeated treatments or three different doses of gonadotropin releasing hormone
Author(s): M.G. Colazo, T. O. Ree, D.G.V. Emmanuel, D.J. Ambrose
Publication Date:
2009
Publication: Theriogenology
Volume: 71
Page Numbers: 984-992
The effect of porcine luteinizing hormone on synchronization of ovulation and corpus luteum development in beef and dairy cattle
Author(s): T.O. Ree, M.G. Colazo, A.G.A. Lamont, J.P. Kastelic, M.K. Dyck, R.J. Mapletoft, B.N. Ametaj, D.J. Ambrose
Publication Date:
2009
Publication: Theriogenology
Volume: 72
Page Numbers: 120-128
Reproductive performance of dairy cows is influenced by prepartum feed restriction and dietary fatty acid source
Author(s): M.G. Colazo, A. Hayirli, L. Doepel, D.J. Ambrose
Publication Date:
2009
Publication: Journal of Dairy Science
Volume: 92
Page Numbers: 2562–2571
Effects of dietary energy and protein density on plasma concentrations of leptin and metabolic hormones in dairy heifers
Author(s): P.K. Chelikani, D.J. Ambrose, D.H. Keisler, J.J. Kennelly
Publication Date:
2009
Publication: Journal of Dairy Science
Volume: 92
Page Numbers: 1430-1441
Pregnancy rates to timed-AI in dairy cows treated with gonadotropin releasing hormone or porcine luteinizing hormone
Author(s): M.G. Colazo, M.B. Gordon, R. Rajamahendran, R.J. Mapletoft, D.J. Ambrose
Publication Date:
2009
Publication: Theriogenology
Volume: 72
Page Numbers: 262-270
Postpartum anestrus in dairy cattle
Author(s): A.T. Peter, P.L.A.M. Vos, D.J. Ambrose
Publication Date:
2009
Publication: Theriogenology
Volume: 71
Page Numbers: 1333-1342
Pregnancy rates to timed AI in Holstein heifers given prostaglandin F2a concurrent with, or 24 h prior to, removal of an intravaginal progesterone-releasing insert
Author(s): D.J. Ambrose, D.G.V. Emmanuel, M.G. Colazo, J.P. Kastelic
Publication Date:
2008
Publication: Journal of Dairy Science
Volume: 91
Page Numbers: 2678-2683
Mixed-breed twin production by contralateral direct transfer of male embryos to beef cow recipients bred to GnRH-based, fixed-time AI
Author(s): J.A. Small, D.J. Ambrose, R. Rajamahendran, J.P. Kastelic
Publication Date:
2008
Publication: Livestock Science
Volume: 118
Page Numbers: 272-281
Diets enriched in unsaturated fatty acids enhance early embryonic development in lactating Holstein cows
Author(s): G. Thangavelu, M.G. Colazo, D.J. Ambrose, M. Oba, E.K. Okine and M.K. Dyck
Publication Date:
2007
Publication: Theriogenology
Volume: 68
Page Numbers: 949-957
Lower pregnancy losses in lactating dairy cows fed a diet enriched in a-linolenic acid
Author(s): D.J. Ambrose, J.P. Kastelic, R. Corbett, P.A. Day, J.A. Small, H.V. Petit, P. Zalkovic
Publication Date:
2006
Publication: Journal of Dairy Science
Volume: 89
Page Numbers: 3066-3079
Progesterone (CIDR)- based timed AI protocols using GnRH, porcine LH or estradiol cypionate for dairy heifers: Ovarian and endocrine responses and pregnancy rates
Author(s): D.J. Ambrose, J.P. Kastelic, R. Rajamahendran, M. Aali, N. Dinn
Publication Date:
2005
Publication: Theriogenology
Volume: 64
Page Numbers: 1457-1474
Ovarian and endocrine responses associated with the treatment of cystic ovarian follicles in dairy cows with gonadotropin releasing hormone and prostaglandin F2a, with or without exogenous progesterone
Author(s): D.J. Ambrose, E.J-P. Schmitt, F. L. Lopes, R.C. Mattos, W.W. Thatcher
Publication Date:
2004
Publication: Canadian Veterinary Journal
Volume: 45
Page Numbers: 931-937