Introducing viewpoints of mechanics into basic growth analysis - (IX) hypothetic quasi-four-dimensional growth mechanics -

This study was conducted to suggest quasi-four-dimensional basic growth mechanics for the ruminant animal and the forage plant by introducing three-dimensional (3-D) space. Suggested quasi-four-dimensions were composed of width, length from front to back and height of the body frame for 3-D space, and one-dimensional time with which the body frame was formed. The results obtained were as follows. (1) A group of expressions were suggested for weight increase and 3-D body frame formation with the passage of time. (2) A group of expressions were suggested for weight increase with time and 3-D body frame formation with weight increase. (3) A group of expressions were suggested for weight increase based on time and 3-D space, where time and space were treated equally to form weight-space-time relationships. (4) Quasifour-dimensional growth mechanics with feed intake suggested the ruminant animal growth analysis and that with leaf area suggested the forage plant growth analysis. It was suggested that introducing 3-D space with an equal treatment of space and time gave hypothetic quasi-four-dimensional growth mechanics for the ruminant animal and the forage plant.