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Animal Sciences Commons

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Full-Text Articles in Animal Sciences

Effects Of Threonine Supplementation On Whole-Body Protein Synthesis And Plasma Metabolites In Growing And Mature Horses, Sara Mastellar, A. Moffet, P.A. Harris, K.L. Urschel Dec 2015

Effects Of Threonine Supplementation On Whole-Body Protein Synthesis And Plasma Metabolites In Growing And Mature Horses, Sara Mastellar, A. Moffet, P.A. Harris, K.L. Urschel

Sara Mastellar

Current equine threonine requirement estimates do not account for probable use of threonine to maintain gut health and mucin synthesis. The objective of this study was to determine if threonine supplementation (+Thr) would increase whole-body protein synthesis (WBPS) in weanling colts (Study 1) and adult mares (Study 2). Both studies used a crossover design, where each of six animals was studied twice while receiving the isonitrogenous diets. The basal diets contained lower threonine levels (Basal) than the threonine (+Thr) supplemented diets. Threonine intakes in mg/kg BW/day were as follows: 79 (Basal) and 162 (+Thr) for Study 1 and 58 (Basal) …


Use Of Protracted “Think-Pair-Share” Activity On American Horse Council Welfare Code Of Practice Title, Sara Mastellar, H.K. Carroll, R.C. Bott Apr 2015

Use Of Protracted “Think-Pair-Share” Activity On American Horse Council Welfare Code Of Practice Title, Sara Mastellar, H.K. Carroll, R.C. Bott

Sara Mastellar

College students represent the next generation of
leaders in the horse industry. Therefore, the adoption
rates of best management practices and codes of
ethics by these individuals are particularly important
for the future of the horse industry. The American
Horse Council Welfare Code of Practice has been
adopted by 26 equine groups as of December 2014.
Codes of practice adherence will depend on the
commitment of those entering the horse industry.
Think-pair-share” exercisesare prevalent in
college teaching and have been positively associated
with improved critical thinking skills (Kaddoura, 2013)
and student learning when used with other active
learning …


Dietary Crude Protein Intake Influences Rates Of Whole-Body Proteinsynthesis In Weanling Horses, Sara Mastellar, A.L. Wagner, R.N. Digianantonio, P.A. Harris Sep 2014

Dietary Crude Protein Intake Influences Rates Of Whole-Body Proteinsynthesis In Weanling Horses, Sara Mastellar, A.L. Wagner, R.N. Digianantonio, P.A. Harris

Sara Mastellar

The objective of this study was to measure whole-body protein kinetics in weanling horses receiving forage and one of two different concentrates: (1) commercial crude protein (CCP) concentrate, which with the forage provided 4.1 g CP/kg bodyweight (BW)/day (189 mg Lysine (Lys)/kg BW/day), and (2) recommended crude protein (RCP) concentrate which, with the same forage, provided 3.1 g CP/kg BW/day (194 mg Lys/kg BW/day). Blood samples were taken to determine response of plasma amino acid concentrations to half the daily concentrate allocation. The next day, a 2 h-primed, constant infusion of [13C]sodium bicarbonate and a 4 h-primed, constant infusion of …