贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2010年
1期
108-110
,共3页
陈雯%俞宝根%郑荣泉%俞丹娜
陳雯%俞寶根%鄭榮泉%俞丹娜
진문%유보근%정영천%유단나
棘胸蛙%胚胎发育%温度%表型特征
棘胸蛙%胚胎髮育%溫度%錶型特徵
극흉와%배태발육%온도%표형특정
Paa spinosa%embryonic development%temperature%phenotypic characteristics
为了解温度对棘胸蛙(Paa spinosa)胚胎发育及蝌蚪表型特征的影响,将受精卵分别在20℃、23℃、26℃和29℃ 4个不同温度下孵化及驯养.测定各温度下受精卵的发育时间及蝌蚪体长、全长等表型特征变化.结果表明:20~23℃是棘胸蛙适合的孵化温度,孵化率均在80%以上,随着温度升高,孵化速度增加,但孵化率明显下降;温度对棘胸蛙全长与体长等表型特征具有显著影响,在23~29℃温度范围内,随着温度增加,其增加量降低,增速减小.
為瞭解溫度對棘胸蛙(Paa spinosa)胚胎髮育及蝌蚪錶型特徵的影響,將受精卵分彆在20℃、23℃、26℃和29℃ 4箇不同溫度下孵化及馴養.測定各溫度下受精卵的髮育時間及蝌蚪體長、全長等錶型特徵變化.結果錶明:20~23℃是棘胸蛙適閤的孵化溫度,孵化率均在80%以上,隨著溫度升高,孵化速度增加,但孵化率明顯下降;溫度對棘胸蛙全長與體長等錶型特徵具有顯著影響,在23~29℃溫度範圍內,隨著溫度增加,其增加量降低,增速減小.
위료해온도대극흉와(Paa spinosa)배태발육급과두표형특정적영향,장수정란분별재20℃、23℃、26℃화29℃ 4개불동온도하부화급순양.측정각온도하수정란적발육시간급과두체장、전장등표형특정변화.결과표명:20~23℃시극흉와괄합적부화온도,부화솔균재80%이상,수착온도승고,부화속도증가,단부화솔명현하강;온도대극흉와전장여체장등표형특정구유현저영향,재23~29℃온도범위내,수착온도증가,기증가량강저,증속감소.
The fertilized Paa spinosa eggs were incubated at 20℃, 23℃, 26℃, and 29℃, respectively, to study the impact of the temperature on embryo development and phenotypic characteristics of tadpole. The growing stages of fertilized eggs, body length and total length of tadpoles were measured. Results showed that the most suitable water temperature for hatching was 20~23℃, with hatching rate of 80%, the hatch getting faster but hatching rate decreased when temperature increased. Temperature had significant effect on total length and body length of tadpoles of P. spinosa, length increment decreased and growth rate reduced along with the increase of temperature in range of 23~29℃.