Pengaruh jenis murbei terhadap nafsu makan, mutu kokon, mutu sera, keperidian dan mutu telur ulat sutera.
1984
Samsijah
To provide feed for silkworms, there are five species of mulberry planted in Indonesia including Morus alba L., M. nigra L., M. cathayana Hemsl, M. australis Poir, and M. multicaulis Poir. Knowing that there was no information available yet regarding the effects of these mulberries on silkworm, Bombyx mori L., an experiment dealing with such questions was conducted from August 1982 until February 1983 at the Forest Research and Development Centre, Bogor. The experiment was aimed at the revealing the effects of those mulberries on larval appetite, cocoon and filament quality, fecundity and hatchability of the eggs. The chemical content of the mulberry leaves was analysed by the Animal Husbandry Research Institute, Bogor. The experiment proved that silkworm feeding with five mulberry species showed no significant effects on survival ability of all instars, on the amount of leaves consumed by young larvae (1-III instars), cocoon and filament quality, and on the hatchability of the eggs. The effects were significant on the amount of leaves consumed by mature larvae (IV-V instars), on the growth rate of both young and mature larvae, and on the fecundity. Mature larvae preferred leaves of M. australis and M. multicaulis than other species. The growth rate of larvae was significantly affected by M. multicaulis and M. cathayana. For egg production it is suggested to feed the silkworm on M. australis or M. alba. Except for water and rough fiber contents, older leaves contained more proteins, fats, ash, carbohydrates, calcium, and phosphorus. The amount of the chemical constituents varied slightly.
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