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4.4.10. Energy budjet for a hypothetical fish
The relation of non-protein respiration quotient to the percentages of carbohydrate and for metabolized. Illustration
The maximum derobic RQ is unity and nitrogen quotient is 0.148 and any value above that indicates the anaerobic fraction. Anaerobic fraction can be calculated by substracting the aerobic fraction from the total value. The RQ value for carbohydrate is 1 Fat is 0.71 Protein is 0.81 The metabolisable energy values are 8.66 kcal/gm of distant carbohydrate and 5.66Kcal/gm and digestible protein. Considering other excretory metabolic pathyways of various food source the amount of energy physiologically available to fish from carbohydrate, fat and protein appears to be approximately 4.1, 9.45 and 4.8 kcal/gm respectively. i. Glucose RQ C6H12O6+6o2 → 6CO2 + 6H2O 6CO2 / 6O2 → RQ:1 ii. Fat: Tripalmitin 6C3H5 (C15H31COO)3 + 145O2 → 102CO2+98H2O N 102CO2 / 145O2 = 0.703 → 0.71 iii. Protein Respiratory Quotients: 0.81, 0.70, 0.75, 0.80, 0.85, 0.9, 0.95, 1.0 Vs Calorific value of oxygen: 4.686, 4.739, 4.801, 4.862, 4.924, 4.985, 5.047 |