Effect of increased content of defatted soybean meal at the expense of corn starch in the composition of artificial diet on the growth and productivity of the silkworm Bombyx mori L.
Panomir Tzenov
, Velislav Iliev, Krasimira Avramova
, Dimitar Grekov
Резюме: The study was conducted at the Scientific Center on Sericulture - Vratsa at the Agricultural Academy, during the period 2022-2025, with the aim of establishing the impact of increased amounts of defatted soybean meal at the expense of reducing the amount of corn starch in artificial diet on the development and productivity of the silkworms. It was found that in the variant with increased from 360 g to 400 g of defatted soybean meal per 1 kg of dry artificial food, no significant differences were found with the control in terms of the duration of the larval period, the vitality of the silkworms, the weight of the fresh cocoon and silk shell weight and the silk shell percentage. The variants with increased content of 440 g and 480 g of defatted soybean meal per 1 kg of dry artificial diet, respectively, show insignificant differences with the control in terms of the values of the trait larval survivability until the beginning of the fourth instar and significantly lower values of the traits vitality of the larvae from the beginning of the fourth instar to the cocoons harvesting, weight of the cocoon and silk shell, with the differences with the control being particularly high in the variant with 480 g. It is possible to increase from 360 g to 400 g the content of defatted soybean meal per 1 kg of dry artificial diet at the expense of reducing the content of corn starch without this leading to significant differences with the control. It is not recommended to increase the content of defatted soybean meal above 400 g per 1 kg of dry artificial diet.
Ключови думи: artificial diet; Bombyx mori L.; corn starch; silkworm; soybean meal
Цитиране: Tzenov, P., Iliev, V., Avramova, K. & Grekov, D. (2025). Effect of increased content of defatted soybean meal at the expense of corn starch in the composition of artificial diet on the growth and productivity of the silkworm Bombyx mori L. Bulgarian Journal of Animal Husbandry, 62(3), 24-29 (Bg).
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| Дата на публикуване: 2025-06-25
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