【摘要】 放养量０．３～１．０ｋｇ／ｍ^２，单产１．５～３．０ｋｇ／ｍ^２，年生产投入６．００～８．００元／ｍ^２，年利税 ２． １０～５．５０ 元／ｍ^２，产投比１．６１～１．７０；成鱼养殖（入箱鱼种＞５０ｇ／尾）可达 ５００ｇ／尾以上，放养量 １．５～３．０ｋｇ／ｍ^２，单产 ５．０～１３．０ｋｇ／ｍ^２，年生产投入１１．００～２６．００元／ｍ^２，年利税１６．００～６３．００元／ｍ^２，产投比 ２．５～４．３。放养规格（Ｘ_１，ｇ／尾）、放养量（Ｘ_２，ｋｇ／ｍ^２）、产出规格（Ｙ_１，ｋｇ／尾）、个体增重倍数（Ｙ_２）、产量（Ｙ_３， ｋｇ／ｍ^２）、年利税（Ｙ_４，元／ｍ^２）关系： Ｙ_１＝０．００６６Ｘ_１＋０．１６６６（Ｆ＝ ４１５． ９５＞Ｆ_０．０１＝ ７． １５），Ｙ_２＝ ８７．８３７Ｘ_１－０．６４２６（Ｆ＝ ４３２．９１＞Ｆ０．０１＝ ７． １５）， Ｙ_３＝ １／(０．０８９＋ ０．５２９ｅ^－ｘ_２)（ｒ＝ ０．７８＞ ｒ_０．０１＝ ０．３４）；鱼种培育Ｙ_４＝－ ６． ３３Ｘ_１－３． ３９Ｘ_２＋ ６． ２９Ｙ_３－ ９． ６３（ Ｆ＝ ３５． ８４＞ Ｆ_０．０１＝ ４． ７６， ｔ_ｉ＞ｔ０．０５＝２． ０７）；成鱼养殖 Ｙ４＝４７．０１Ｘ_?更多还原

【Abstract】 Stocked with silver care fries in net cages in rivers in Chongqing at rates of 0. 3-1. 0kg/m², the production of fingerlings in one growing season was 1. 5-3. 0 kg/m² and the mean harvest weight is alers 0. 15 kg/fingerling, with 6.00 - 8.00 Yuan/m²annual expenditures, 2. 10-5 .50 Yuan/m² annual profit and tax and 1 .61-1 .70 of income/expenditure; while stocked with fingerlings （above 50g） at rates of 1. 5-3 .0 kg/m², the production in one growing season was 5. 0-13. 0 kg/m² and the mean harvest weight is above 0. 5kg/fish, with 11. 00-26. 00 Yuan/m² annual expenditures, 16.00-63 .00 Yuan/m² annual profit and tax and 2.50-4. 30 of income/expenditure; the equation of the stocking size （X₁, g/fish）, stocking rate （X₂, kg/m₂ ）, harvest size （Y₁, kg/fish）, rate of weight increase of individual （Y₂）, yield （Y₃, kg/m² ）, profit and tax （Y₄, Yuan/m² ） is: Y₁ = 0.0067X₁ + 0. 1670 (F = 415.95 > F_0.01 = 7. 15); Y₂ = 74.844X₁^-0.432 (F = 432.91 > F_0.01 = 7. 15); Y₃ = 1/ (0.089 + 0. 529e^x₂ （r = 0 .780 > r0.01 = 0. 336 ）, and the equation of fingerling culture is Y₄ = - 6 .33X₁ -3. 39X₂ + 6.29Y₃- 9.63 (F = 35.83 > F_O.01 = 4.76, t_i > t_0.05 = 2.07); the equation of adults culture is Y₄ = 47.01X₁- 4.54X₂ + 10.37Y₁ + 6. 10Y₃ - 15. 13 (F= 399 .82 >F_0.01, = 4.76, t_i >t_0.05 = 2 .07).更多还原