An economic analysis of resting versus nonresting perennial pastures during the critical acclimation period

作者：Fryza Stefanie; Carlberg Jared G; Khakbazan Mohammad^*; Robins Clayton D; Block Hushton C; Scott Shannon L; Huang John; Durunna Obioha N

来源：Canadian Journal of Animal Science, 2016, 96(3): 364-375.

DOI：10.1139/cjas-2015-0118

• alfalfa
• bromegrass
• cow-calf production
• net present value of return
• rested vs. nonrested grazing
• risk

Economic evaluations were carried out on stochastically simulated production systems using data from a grazing systems' trial, which evaluated the impact of resting (i.e., grazing cessation) alfalfa (Medicago sativa L.) - bromegrass (Bromus riparius Rehm. 'Fleet') and grass-only (G) pastures during the critical prefrost period on beef cattle (Bos taurus) productivity. Grazing systems were compared on the basis of calculated net present value of returns analysis. Lower production costs through reduced fertilization requirements resulted in alfalfa - grass (AG) preference over G pastures, while returns from increased calf sale weights resulted in nonrested systems being preferred over rested systems. However, low presence of alfalfa in the AG pastures likely limited the potential for resting pastures to improve production through increased alfalfa persistence. This evaluation found nonrested grazing of AG pastures to be preferred over other treatments on the basis of increased returns and reduced risk.

• 出版日期2016-9
• 单位Saskatchewan