Study on the effect of still water environment on the growth of Australian freshwater lobster

Regression analysis of Australian freshwater crayfish (Cherax quadricarinatus) revealed power function relationships between body length (L) and weight (W) across age groups: W = 1.2995L^0.986 (R² = 0.9538) for 1-month-old, W = 0.3468L^1.3747 (R² = 0.9242) for 2-month-old, W = 2.852L^0.4004 (R² = 0.9704) for 3-month-old, and W = 2.5846L^0.4238 (R² = 0.9404) for 4-month-old individuals, while daily feed intake (F) correlated with weight as F = 0.013W^1.014 (1-month), F = 0.047W^0.7274 (2-month), F = 0.0012W^2.4975 (3-month), and F = 0.0018W^2.3598 (4-month), demonstrating peak growth at 2 months with significant deceleration by 4 months, suggesting optimized farming practices—increased feeding, water exchange, or aeration during the second month and harvest after 4 months.