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静水缸中稀有鲫 2 40天养殖试验显示 ,A型人工饲料的每对亲鱼产卵次数汉源种群和彭州种群分别为15 2 5和 13 75次 ,相近于水蚯蚓为饲料的 12次和 14 5次 ;A型人工饲料产卵间隔天数分别为 15 98天和 17 46天 ,相近于水蚯蚓为饲料的 2 0 86天和 16 5 6天。循环水缸中稀有鲫 10 5天养殖试验显示 ,A型人工饲料的每对亲鱼产卵次数为 12次 ,低于水蚯蚓为饲料的 2 1 5次 ;产卵间隔天数为 8 75天 ,长于水蚯蚓为饲料的 4 88天。因此 ,用人工饲料可以实现静水缸和循环水缸中稀有鲫的繁殖。静水缸 5种饲料个体每次产卵量有显著差异 (P <0 0 5 ) ,而鱼卵孵化率没有显著差异 (P >0 0 5 )。A和B型饲料产卵量与水蚯蚓接近。循环水缸 4种饲料个体每次产卵量和鱼卵孵化率均有显著差异 (P <0 0 5 )。
In the static water tank, the rare crucian carp (Carassius auratus gibelio) 2 40 days breeding test showed that the number of spawning eggs per pair of broodstock in type A artificial diet was 15 2 5 and 13 75 times, respectively, which was similar to that of water earthworm 12 times and 14 5 times; type A artificial feeding spawning interval days were 15 98 days and 17 46 days, respectively, similar to water earthworm feed for 2086 days and 165 days. In the circulating water tank, the crucian carp tended to breed for 10 5 days. The number of spawning of each pair of broodstock in type A artificial diet was 12 times, which was 21 5 times less than that of water earthworm. The number of spawning intervals was 8 75 days, Longer than water earthworms for feed 488 days. Therefore, with artificial feed can be achieved in the static water tank and circulating water tank breeding rare Rana carpio. There was a significant difference (P <0.05) in the number of eggs laid among the five kinds of feed in static water tank, while there was no significant difference in the hatching rate of fish eggs (P> 0.05). The fecundity of A and B feed was close to that of water earthworm. There was a significant difference (P <0.05) in the number of eggs laid per hatching and the hatching rate of fish eggs among the four feed recirculation tanks.