1)孵化期:是指從蝸牛產出的卵到孵化出殼時這一段時間。
2)幼螺期:幼螺是指蝸牛出殼後到30d以內的小螺階段。
3)成螺期:幼螺滿1月至6月齡之間,這5個月齡的螺叫成螺階段。它是介於幼螺和種螺中間的時期,蝸牛在這個階段是生長發育(個體膨大),又是生殖生長(性器官的生長和發育)的時期。
4)種螺期:生長滿6個月以上的蝸牛。
生活環境
蝸牛喜歡在陰暗潮濕、疏松多腐殖質的環境中生活,晝伏夜出,最怕陽光直射,對環境反應敏感,最適環境:溫度16~30℃(23~30℃時,生長發育最快);空氣濕度60%~90%;飼養土濕度40%左右;pH為5~7。當溫度低於15℃, 高於33℃時休眠,低於5℃或高於40℃,則可能被凍死或熱死。
喜歡在腐殖土中棲息、產卵、調節體內濕度和吸取部分養料,時間可長達12小時之久。雜食性和偏食性並存。喜潮濕怕水淹。在潮濕的夜間,並投入濕漉的食料,蝸牛的食欲活躍。但水淹可使蝸牛窒息。自食生存性。小蝸牛一孵出,就會爬動和取食,不要母體照顧。當受到敵害侵擾時,它的頭和足便縮回殼內,並分泌出粘液將殼口封住;當外殼損害致殘時,它能分泌出某些物質修復肉體和外殼。具有很強的忍耐性。蝸牛具有驚人的生存能力,對冷、熱、饑餓、幹旱有很強的忍耐性。喜恒溫養殖。溫度恒定在25~28℃之間,生長發育和繁殖旺盛。
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