CAJ | 학술논문

本文在5个不同孵育温度下对中华鳖胚胎发育、孵化周期、初生幼体形态特征及活动能力进行了研究。孵化温度设置为(23±0.5)℃、(26±0.5)℃、(29±0.5)℃、(32±0.5)℃、(35±0.5)℃，每一温度指标下设置3个平行组，每组30枚卵。孵化介质为蛭石，湿度为6%。结果显示，胚胎的发育速度随着孵化温度的升高而加快，所用的孵化时间也越来越短。孵化累积温度CTUs在23℃时最高，随着温度的升高，累积温度±次降低；孵化率在29℃时最高，达到83.3%，26℃为80%，32℃为43.3%，23℃为11.1%，35℃为0。温度对稚鳖形态特征的影响比较显著，29℃孵出幼体的体质量最重、背甲最长，与26℃孵出差异不显著，与32℃差异显著，和23℃差异极显著；26℃孵出幼体背甲最宽，与其它三组差异极显著，但其它三组之间差异不显著；23℃孵出幼体体重、背甲长和宽都是最小的。温度对新生幼体运动表现的影响差异显著，23℃孵出的初生幼体活动能力最差，与其它3组差异显著，其它3组之间差异不显著。26~29℃是生产实践中比较适合的孵化温度。
본문재5개불동부육온도하대중화별배태발육、부화주기、초생유체형태특정급활동능력진행료연구。부화온도설치위(23±0.5)℃、(26±0.5)℃、(29±0.5)℃、(32±0.5)℃、(35±0.5)℃，매일온도지표하설치3개평행조，매조30매란。부화개질위질석，습도위6%。결과현시，배태적발육속도수착부화온도적승고이가쾌，소용적부화시간야월래월단。부화루적온도CTUs재23℃시최고，수착온도적승고，루적온도±차강저；부화솔재29℃시최고，체도83.3%，26℃위80%，32℃위43.3%，23℃위11.1%，35℃위0。온도대치별형태특정적영향비교현저，29℃부출유체적체질량최중、배갑최장，여26℃부출차이불현저，여32℃차이현저，화23℃차이겁현저；26℃부출유체배갑최관，여기타삼조차이겁현저，단기타삼조지간차이불현저；23℃부출유체체중、배갑장화관도시최소적。온도대신생유체운동표현적영향차이현저，23℃부출적초생유체활동능력최차，여기타3조차이현저，기타3조지간차이불현저。26~29℃시생산실천중비교괄합적부화온도。
The research aimed to study the effects of different temperature on embryonic development, hatchling period, hatchling traits and hatchling moving of Trionyxsinensis. Eggs were divided into five groups (30 eggs per group) and incubated under five different temperatures, such as (23±0.5)℃, (26±0.5)℃, (29±0.5)℃, (32±0.5)℃, (35±0.5)℃. The hatchling medium was vermiculite and humidity was 6%. The embryonic development rates increase and incubation time decreases as the temperature rise at the five different temperatures. Cumulative temperature units (CTUs) (degree·hours) decrease as the temperature rise at the five different temperatures. At (9±0.5)℃and (26±0.5)℃, embryonic survival rate was 83.3%and 80%, but only 43.3%at (32±0.5)℃and with 11.1%at (23±0.5)℃as well as 0 at (35±0.5)℃. The result indicted that the effect of different temperatures on hatchling traits was significant. At (29±0.5)℃, body mass and carapace length of hatchling were the largest, and in comparasion with (32±0.5)℃and (23±0.5)℃, the difference was significant, but not include (26±0.5)℃. At (23±0.5)℃, the body weight, carapace length and width were the least. The effect of different temperatures on swimming performance of hatchling was significant, at (23±0.5)℃, the swimming performance of hatchling was the worst, while there was no difference between other groups. In conclusion, the optimal temperature of Trionyxsinensis incubation is likely to be 26℃and 29℃.