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金魚卵的孵化與天氣

一般每年第一次產卵時,往往氣溫、水溫偏低,再遇上有忽冷忽熱和陰雨天氣,有的卵就要延緩到10天左右才能孵出小魚,出色率和正品率也低(除人工加溫例外)。而6—7月間,水溫高達28℃左右,2天左右就可孵出小魚。

    實踐證明:水溫多變和水溫過低或過高,即使能孵出小魚,其正品率均要受到影響,而水溫在18℃左右經5—7天孵出的小魚體質較好,正品率高。

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