Enter stocking area, density and average body weight to quickly estimate total stock, total biomass and yield per unit area.
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Standing stock | Stock = area × density | NY/T 5281 |
| Grazing density | SU/ha = forage / (intake × 365) | NY/T 635-2002 |
| Housing density | Species floor area | NY/T 156-2005 |
根据养殖面积、存栏密度单位、平均体重与成活率,估算总存栏数量、总生物量,并折算为常用的只/㎡、只/亩等单位密度,适用于禽畜、水产及特种养殖规划。
存栏 = 圈舍面积 × 设计密度(头/㎡)。