D. J. Ambrose

发表

Dairy cows continuously-housed in tie-stalls failed to manifest activity changes during estrus

C. Felton, M. Colazo, P. Ponce-Barajas, 2012 .

Large variations exist in prepartum activity among dairy cows continuously housed in a tie-stall barn

C. Felton, M. Colazo, C. Bench, 2013 .

Characterisation of the bacterial microbiota of the vagina of dairy cows and isolation of pediocin-producing Pediococcus acidilactici

D. J. Ambrose, M. Gänzle, B. Ametaj, 2013, BMC Microbiology.

Infrared thermography and behavioral biometrics associated with estrus indicators and ovulation in estrus-synchronized dairy cows housed in tiestalls.

C. Bench, D. J. Ambrose, A. Schaefer, 2019, Journal of dairy science.

Running head: Residual feed intake and bull sperm quality Morphology, membrane integrity, and mitochondrial function in sperm of crossbred beef bulls selected for residual feed intake Bruinjé, T.C.1, P. Ponce-Barajas1, A. Dourey1,4,

Z. Wang, M. Colazo, P. Ponce-Barajas, 2018 .

Morphology, membrane integrity, and mitochondrial function in sperm of crossbred beef bulls selected for residual feed intake

M. Colazo, P. Ponce-Barajas, D. J. Ambrose, 2019, Canadian Journal of Animal Science.

Synchronization of ovulation in cyclic gilts with porcine luteinizing hormone (pLH) and its effects on reproductive function.

E. Beltranena, D. J. Ambrose, M. Dyck, 2008, Theriogenology.

Effects of supplementing a Saccharomyces cerevisiae fermentation product during the periparturient period on performance of dairy cows fed fresh diets differing in starch content.

I. Yoon, D. J. Ambrose, M. Oba, 2019, Journal of dairy science.

Evaluation of anti-sperm monoclonal antibodies as biomarkers to assess bull sperm capacitation, acrosome reaction and fertility in vitro

D. J. Ambrose, D. Ambrose, 1996 .

Effects of prepartum oilseed supplements on subclinical endometritis, pro- and anti-inflammatory cytokine transcripts in endometrial cells and postpartum ovarian function in dairy cows.

M. Colazo, D. J. Ambrose, U. Basu, 2017, Reproduction, fertility, and development.

Fecal and urinary lignans, intrafollicular estradiol, and endometrial receptors in lactating dairy cows fed diets supplemented with hydrogenated animal fat, flaxseed or sunflower seed.

E. Okine, M. Colazo, D. J. Ambrose, 2008, The Journal of reproduction and development.

Stability of bovine milk progesterone under different storage and thawing conditions

M. Colazo, D. J. Ambrose, A. Lamont, 2007 .

Alterations in bone morphogenetic protein 15, growth differentiation factor 9, and gene expression in granulosa cells in preovulatory follicles of dairy cows given porcine LH.

M. Colazo, D. J. Ambrose, A. Behrouzi, 2016, Theriogenology.

Morphologic and transcriptomic assessment of bovine embryos exposed to dietary long-chain fatty acids.

B. Tsang, M. Colazo, D. J. Ambrose, 2016, Reproduction.

Plasma luteinizing hormone concentrations in cows given repeated treatments or three different doses of gonadotropin releasing hormone.

M. Colazo, D. J. Ambrose, D. Emmanuel, 2009, Theriogenology.

Evaluation of early conception factor lateral flow test to determine nonpregnancy in dairy cattle.

D. J. Ambrose, L. Goonewardene, B. Radke, 2007, The Canadian veterinary journal = La revue veterinaire canadienne.

A prepartum diet supplemented with oilseeds high in oleic or linoleic acid reduced GnRH-induced LH release in dairy cows during second week postpartum

M. Colazo, D. J. Ambrose, M. Oba, 2015, Reproductive Biology and Endocrinology.

Superovulatory response, anti-Müllerian hormone concentration and antral follicle count in Holstein cattle with short or long anogenital distance.

M. Colazo, D. J. Ambrose, M. Gobikrushanth, 2022, Theriogenology.

Interrelationships among plasma metabolites, production, and ovarian follicular function in dairy cows

M. Colazo, D. J. Ambrose, A. Hayirli, 2018, Canadian Journal of Animal Science.

Effects of prepartum diets supplemented with rolled oilseeds on calf birth weight, postpartum health, feed intake, milk yield, and reproductive performance of dairy cows.

M. Colazo, D. J. Ambrose, M. Oba, 2016, Journal of dairy science.

Effects of prepartum fat supplementation on plasma concentrations of glucagon-like peptide-1, peptide YY, adropin, insulin, and leptin in periparturient dairy cows.

D. J. Ambrose, P. Chelikani, R. Zapata, 2015, Journal of dairy science.

Diameter of the ovulatory follicle at timed artificial insemination as a predictor of pregnancy status in lactating dairy cows subjected to GnRH-based protocols.

M. Colazo, D. J. Ambrose, R. Mapletoft, 2015, Theriogenology.

Pregnancy per artificial insemination and pregnancy loss in lactating dairy cows of a single herd following timed artificial insemination or insemination at detected estrus

M. Colazo, D. J. Ambrose, M. Gobikrushanth, 2015, Canadian Journal of Animal Science.

Low-dose natural prostaglandin F2α (dinoprost) at timed insemination improves conception rate in dairy cattle.

J. Kastelic, D. J. Ambrose, M. Gobikrushanth, 2015, Theriogenology.

Pregnancy per artificial insemination in lactating dairy cows subjected to 2 different intervals from presynchronization to initiation of Ovsynch protocol.

M. Colazo, P. Ponce-Barajas, D. J. Ambrose, 2013, Journal of dairy science.

Progesterone supplementation before timed AI increased ovulation synchrony and pregnancy per AI, and supplementation after timed AI reduced pregnancy losses in lactating dairy cows.

M. Colazo, D. J. Ambrose, R. Rajamahendran, 2013, Theriogenology.

Starch source and content in postpartum dairy cow diets: effects on plasma metabolites and reproductive processes.

M. Colazo, D. J. Ambrose, M. Dyck, 2011, Journal of dairy science.

Pregnancy rates to timed artificial insemination in dairy cows treated with gonadotropin-releasing hormone or porcine luteinizing hormone.

M. Colazo, D. J. Ambrose, R. Rajamahendran, 2009, Theriogenology.

Reproductive performance of dairy cows is influenced by prepartum feed restriction and dietary fatty acid source.

M. Colazo, D. J. Ambrose, A. Hayirli, 2009, Journal of dairy science.

Effects of dietary energy and protein density on plasma concentrations of leptin and metabolic hormones in dairy heifers.

D. Keisler, D. J. Ambrose, P. Chelikani, 2009, Journal of dairy science.

Diets enriched in unsaturated fatty acids enhance early embryonic development in lactating Holstein cows.

E. Okine, M. Colazo, D. J. Ambrose, 2007, Theriogenology.

Comparison of 2 enzyme immunoassays and a radioimmunoassay for measurement of progesterone concentrations in bovine plasma, skim milk, and whole milk.

J. Kastelic, J. Small, M. Colazo, 2008, Canadian journal of veterinary research = Revue canadienne de recherche veterinaire.

Effects of reducing dietary starch content by replacing barley grain with wheat dried distillers grains plus solubles in dairy cow rations on ovarian function.

Y. Sun, M. Colazo, P. Ponce-Barajas, 2016, Journal of dairy science.

Lower Pregnancy Losses in Lactating Dairy Cows Fed a Diet Enriched in α-Linolenic Acid

J. Kastelic, J. Small, D. J. Ambrose, 2006 .

Ovarian and endocrine responses associated with the treatment of cystic ovarian follicles in dairy cows with gonadotropin releasing hormone and prostaglandin F2alpha, with or without exogenous progesterone.

D. J. Ambrose, W. Thatcher, R. Mattos, 2004, The Canadian veterinary journal = La revue veterinaire canadienne.

An Overview of Strategies to Improve Reproductive Efficiency

D. J. Ambrose, 1999 .

Evaluation of infrared thermography combined with behavioral biometrics for estrus detection in naturally cycling dairy cows.

C. Bench, D. J. Ambrose, A. Schaefer, 2021, Animal : an international journal of animal bioscience.

Neither duration of progesterone insert nor initial GnRH treatment affected pregnancy per timed-insemination in dairy heifers subjected to a Co-synch protocol.

M. Colazo, D. J. Ambrose, M G Colazo, 2011, Theriogenology.

The applications of timed artificial insemination and timed embryo transfer in reproductive management of dairy cattle

J. Kastelic, M. Colazo, D. J. Ambrose, 2010 .

Synchronization of estrus and Ovulation in cattle

J. Small, D. J. Ambrose, R. Rajamahendran, 2001 .

Pregnancy rates to timed artificial insemination in Holstein heifers given prostaglandin F2alpha twenty-four hours before or concurrent with removal of an intravaginal progesterone-releasing insert.

J. Kastelic, M. Colazo, D. J. Ambrose, 2008, Journal of dairy science.

Anogenital distance is associated with postpartum estrous activity, intensity of estrous expression, ovulation, and progesterone concentrations in lactating Holstein cows.

D. J. Ambrose, A. Madureira, R. Cerri, 2022, Journal of dairy science.

Relationship between circulating progesterone at timed-AI and fertility in dairy cows subjected to GnRH-based protocols.

M. Colazo, D. J. Ambrose, R. Mapletoft, 2017, Theriogenology.

The effect of porcine luteinizing hormone in the synchronization of ovulation and corpus luteum development in nonlactating cows.

J. Kastelic, M. Colazo, D. J. Ambrose, 2009, Theriogenology.

Precocious mammary development in an 8-month-old Holstein heifer.

D. J. Ambrose, D. Emmanuel, D. Ambrose, 2008, The Canadian veterinary journal = La revue veterinaire canadienne.

Effects of dietary butyrate supplementation and oral nonsteroidal anti-inflammatory drug administration on serum inflammatory markers and productivity of dairy cows during the calving transition.

D. J. Ambrose, M. Oba, L. Engelking, 2022, Journal of dairy science.

Impact of selection for residual feed intake on breeding soundness and reproductive performance of bulls on pasture-based multisire mating.

S. Moore, G. Plastow, M. Colazo, 2012, Journal of animal science.

Postpartum anestrus in dairy cattle.

D. J. Ambrose, P. Vos, A. T. Peter, 2009, Theriogenology.

Mixed-breed twin production by contralateral direct-transfer of male embryos to beef cow recipients bred to GnRH-based, fixed-time AI

J. Kastelic, J. Small, D. J. Ambrose, 2008 .

Effects of dietary butyrate supplementation and oral nonsteroidal antiinflammatory drug administration on uterine inflammation and interval to first ovulation in postpartum dairy cows

D. J. Ambrose, M. Oba, M. Gobikrushanth, 2022, JDS communications.

Repeatability of anogenital distance measurements from birth to maturity and at different physiological states in female Holstein cattle

D. J. Ambrose, M. Oba, M. Gobikrushanth, 2022, Journal of Dairy Science.

Clinical and research applications of real-time ultrasonography in bovine reproduction: a review.

D. J. Ambrose, R. Rajamahendran, R Rajamahendran, 1994, The Canadian veterinary journal = La revue veterinaire canadienne.

Repeatability of antral follicle counts and anti-Müllerian hormone and their associations determined at an unknown stage of follicular growth and an expected day of follicular wave emergence in dairy cows.

M. Colazo, D. J. Ambrose, S. Butler, 2017, Theriogenology.

Residual feed intake adjusted for backfat thickness and feeding frequency is independent of fertility in beef heifers

V. Baron, M. Colazo, D. J. Ambrose, 2011, Canadian Journal of Animal Science.

Can Feeding Fats Improve Reproductive Performance in Dairy Cows?

M. Colazo, D. J. Ambrose, R. Salehi, 2016 .

Dietary Fatty Acids and Dairy Cow Fertility

J. Kastelic, D. J. Ambrose, Agri-food Canada, 2003 .

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.

M. Colazo, D. J. Ambrose, T. C. Bruinjé, 2017, Theriogenology.

Using in-line milk progesterone data to characterize parameters of luteal activity and their association with fertility in Holstein cows.

M. Colazo, D. J. Ambrose, E. Ribeiro, 2019, Journal of dairy science.

Carryover effects of pre- and postweaning planes of nutrition on reproductive tract development and estrous cycle characteristics in Holstein heifers.

M. Steele, D. J. Ambrose, T. C. Bruinjé, 2019, Journal of dairy science.

The relationship between serum anti-Müllerian hormone concentrations and fertility, and genome-wide associations for anti-Müllerian hormone in Holstein cows.

M. Colazo, D. J. Ambrose, S. Butler, 2018, Journal of dairy science.

Characterization of the variability and repeatability of gonadotropin-releasing hormone-induced luteinizing hormone responses in dairy cows within a synchronized ovulation protocol.

M. Colazo, D. J. Ambrose, S. Butler, 2017, Journal of dairy science.

Categorization of endometritis and its association with ovarian follicular growth and ovulation, reproductive performance, dry matter intake, and milk yield in dairy cattle.

M. Colazo, D. J. Ambrose, R. Salehi, 2016, Theriogenology.

Relationships between endometrial cytology and interval to first ovulation, and pregnancy in postpartum dairy cows in a single herd.

M. Colazo, D. J. Ambrose, A. Dourey, 2011, Research in veterinary science.

The relationship between serum insulin-like growth factor-1 (IGF-1) concentration and reproductive performance, and genome-wide associations for serum IGF-1 in Holstein cows.

M. Colazo, D. J. Ambrose, S. Butler, 2018, Journal of dairy science.

Evaluating automated infrared thermography and vulva exposure tracking as components of an estrus detection platform in a commercial dairy herd.

C. Bench, D. J. Ambrose, N. Cook, 2022, Animal : an international journal of animal bioscience.

Characterization of anogenital distance and its relationship to fertility in lactating Holstein cows.

M. Colazo, D. J. Ambrose, S. Butler, 2017, Journal of dairy science.

Evidence of residual feed intake reranking in crossbred replacement heifers.

V. Baron, M. Colazo, D. J. Ambrose, 2012, Journal of animal science.