Abstract
In order to assess how efficient is the use of mulberry leaf by the Bombyx mori Baneasa Super larvae hybrid, some determinations were made regarding the nutritional value and digestibility of the worm leaf administered as food, during a series of summer growth. The results showed that ongoing vegetation and growth process of this hybrid, the Mulberry leaves suffer an aging phenomenon, revealed by diminishing its chemical composition quality. According to this, most of the nutritional substances from mulberry leaves, except cellulose, manifest a continuous decline during the growth period. The digestibility of these nutritional components registered a value of 56.41%, the crude energy value was 4209 kcal/kg dry substance, and digestive energy was 2173 kcal/kg (DS), while the metabolic energy was 2044-2007 kcal/kg (DS). The efficiency of converting ingestion into silk had a value of 9.30% and the digestion was 15.76%.
Highlights
In order to assess how efficient is the use of mulberry leaf by the Bombyx mori Baneasa Super larvae hybrid, some determinations were made regarding the nutritional value and digestibility of the worm leaf administered as food, during a series of summer growth
The results showed that ongoing vegetation and growth process of this hybrid, the Mulberry leaves suffer an aging phenomenon, revealed by diminishing its chemical composition quality
Most of the nutritional substances from mulberry leaves, except cellulose, manifest a continuous decline during the growth period. The digestibility of these nutritional components registered a value of 56.41%, the crude energy value was 4209 kcal/kg dry substance, and digestive energy was 2173 kcal/kg (DS), while the metabolic energy was 2044-2007 kcal/kg (DS)
Summary
In order to assess how efficient is the use of mulberry leaf by the Bombyx mori Baneasa Super larvae hybrid, some determinations were made regarding the nutritional value and digestibility of the worm leaf administered as food, during a series of summer growth. The crude protein from the mulberry leaf, compared to the dry substance, had values between 21.86% at first age, 18.99% at fifth age and during the whole studied period an average of 20.78±0.627%.
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