AIMC Topic: Progesterone

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Investigation of mechanisms involved in regulation of progesterone catabolism using an overfed versus underfed ewe-lamb model.

Journal of animal science Dec 1, 2017
Alterations in progesterone (P4) catabolism due to high feed intake underlie some effects of nutrition on reproduction. Based on previous research, we hypothesized that high feed intake could potentially increase P4 catabolism, likely due to increase...
Female Animals Diet Energy Intake Insulin Progesterone Liver Biopsy Animal Feed Reproduction Sheep Random Allocation Lipolysis Overnutrition
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Two split-time artificial insemination programs in suckled beef cows.

Journal of animal science Nov 1, 2017
Our objective was to determine which of 2 split-time AI programs applied to suckled beef cows would result in greater pregnancy risk. Suckled beef cows (n = 1,062) at 12 locations in 4 states (CO, KS, MY, and WA) were enrolled. Cows were treated on d...
Pregnancy Female Parity Animals Time Factors Cattle Progesterone Pregnancy Outcome Gonadotropin-Releasing Hormone Insemination, Artificial Risk Estrus Estrus Detection
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