M.G. Colazo
University of Saskatchewan
61 Papers
297 Citations
M.G. Colazo is an academic researcher from University of Saskatchewan. The author has contributed to research in topics: Reproductive technology & Pregnancy. The author has an hindex of 15, co-authored 59 publications.
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Papers
Effects of progesterone presynchronization and eCG on pregnancy rates to GnRH-based, timed-AI in beef cattle
TL;DR: The effects of eCG and presynchronization were not additive, and treatment with eCG had no effect on the diameter of the preovulatory follicle, or the response to PGF(2alpha) (Experiments 1 and 2), but tended to improve pregnancy rates.
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Pregnancy rates to timed artificial insemination in dairy cows treated with gonadotropin-releasing hormone or porcine luteinizing hormone
TL;DR: PLH treatment on Day 0 increased ovulatory response but not pregnancy rate, and cows treated with GnRH/PGF/pLH had the highest pregnancy rate to TAI, but progesterone concentrations after TAI were not increased.
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Progesterone concentration, estradiol pretreatment, and dose of gonadotropin-releasing hormone affect gonadotropin-releasing hormone-mediated luteinizing hormone release in beef heifers
TL;DR: The hypotheses that higher doses of GnRH will be more efficacious in inducing LH release and that exogenous E2 will increase LH release following treatment with GnRH were supported, but neither significantly increased ovulation rate.
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Neither duration of progesterone insert nor initial GnRH treatment affected pregnancy per timed-insemination in dairy heifers subjected to a Co-synch protocol
M.G. Colazo,Divakar J. Ambrose +1 more
TL;DR: Length of proestrus but not ovulatory follicle diameter was identified as a significant predictor of probability of pregnancy 28 d after TAI, with a maximum predicted probability of 80.1% when the length of prostrus was 3 d.
54
Accuracy of a cow-side test for the diagnosis of hyperketonemia and hypoglycemia in lactating dairy cows.
TL;DR: The results indicate that the cow-side device is accurate for rapid measurement of blood BHBA and diagnosis of ketosis on farms but is not accurate for measurement of Blood β-hydroxybutyrate and glucose concentrations and diagnoses of hypoglycemia.
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