Summary: | 碩士 === 國立彰化師範大學 === 科學教育研究所 === 88 === In the first experiment, I studied effects of intermittent feeding on the growth and development of oophagous tadpoles (Chirixalus eiffingeri) and herbivore tadpoles(C. idiootocus). I fed the yolk of chicken egg as food of C. eiffingeri tadpoles. And, I fed boiled spinach as food of C. idiootocus tadpoles. Tadpoles fed interval of 1, 2, 4, 8, 14 or 20 days. Each treatment consisted of 12 replicates. I monitored weight and total length of tadpoles until all tadpole metamorphosis or died. I recorded the number of tadpoles that reached metamorphosis, the time to reach metamorphosis, and the weight of tadpoles that reached metamorphosis. In C. eiffingeri tadpoles, there was four treatments reached metamorphosis. But, in C. idiootocus tadpoles, just only the treatment that tadpoles ate every day reached metamorphosis. The result suggests that intermittent feeding influenced the growth and development of C. idiootocus tadpoles more than C. eiffingeri tadpoles.
In the second experiment, I studied the lipid compositions of tadpoles (C. eiffingeri ) that ate different diet. I analyzed the lipid components and fatty acid composition of egg yolk, female frog’s ova, and tadpoles that ate different diet. Our result suggests that the fatty acid composition of tadpoles reflected its diet. N-3PUFA is rich in female frog’s ova, but rare in egg yolk. This characteristic also reflected on tadpoles that ate different diet.
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