Fortifikasi Daun Ketela Pohon Menggunakan Lisin terhadap Pertumbuhan dan Perkembangan Ulat Sutra Eri (Samia cynthia ricini D.) (Lepidoptera: Saturniidae) serta Pemanfaatannya sebagai Book Chapter

Abstract

The eri silkworm (Samia cynthia ricini D.) is a polyphagous insect that can consume castor bean leaves as primary food leaves and cassava leaves as secondary food leaves. The nutrients contained in cassava leaves are lower than castor bean leaves, so it is necessary to add nutrients to cassava leaves by fortification. Fortification was conducted by adding lysine as an additional nutrient added to cassava leaves. The aim of this research was to determined the effect of fortification using lysine on growth and development parameters. The research was conducted using RCBD (randomized completely block design) with four treatments, each of which used 10 larvae with 3 repetitions. The concentrations used in this study were 1%, 2%, 3%. The data was analyzed using ANOVA Univariate, and followed by LSD 5%. The result showed that the highest result on cocoon weight was 2.558 g. The highest average in cocoon shell weight was 0.285 g. The highest average on shell ratio was 12.18%. The highest mean wingspan was 12.17 cm. The highest mean developmental time was 42.87 days. The highest mean fecundity was 280.60 eggs. The highest mean hatchability was 71.06%. Based on the results, the concentration of lysine that has the most effect on the growth and development of eri silkworms is 3% lysine concentration. The results of this research were written in the form of a book chapter which this book chapter received an average book chapter eligibility score of 85.49%.