Publication Date
1985
Location
Kyoto Japan
Description
The key to more efficient production of beef from forages is in matching animal intake and plant growth. One method of evaluating the interaction of grating animals and growing forages is through dynamic computer simulation models. A model called GRAZE has been developed to evaluate this interaction. GRAZE incorporates previously developed plant and animal models with selective grazing logic based on the premise that beef animals maximize their digestible dry matter intake rate. The model subdivides the pasture int_o subareas. The subareas are grazed according to a priority system where the animal shifts from one subarea to another so as to maximize their digestible dry matter intake rate. Additional subareas are created based on dry matter intake. Each subarea's plant growth is simulated separately on a daily bases. The incremental time step for animal growth is 15 minutes.
Citation
Loewer, O J.; Taul, K L.; Turner, L W.; Gay, N; and Muntifering, R, "Modeling of Beef-Forage Grazing Interactions" (1985). IGC Proceedings (1985-2023). 31.
(URL: https://uknowledge.uky.edu/igc/1985/ses11/31)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Modeling of Beef-Forage Grazing Interactions
Kyoto Japan
The key to more efficient production of beef from forages is in matching animal intake and plant growth. One method of evaluating the interaction of grating animals and growing forages is through dynamic computer simulation models. A model called GRAZE has been developed to evaluate this interaction. GRAZE incorporates previously developed plant and animal models with selective grazing logic based on the premise that beef animals maximize their digestible dry matter intake rate. The model subdivides the pasture int_o subareas. The subareas are grazed according to a priority system where the animal shifts from one subarea to another so as to maximize their digestible dry matter intake rate. Additional subareas are created based on dry matter intake. Each subarea's plant growth is simulated separately on a daily bases. The incremental time step for animal growth is 15 minutes.
