Effects of Dioxide Titanium nanoparticles (TiO2) on growth and production characteristics of silkworms


Masoud Alipanah & Hassan Feizi
University of Torbat Heydarieh, Department of Plant Production, Torbat Heydarieh, Iran.

Abdolazim Nasiri & Farid Sarjamei
Sericulture Center of Khorasan Razavi, Torbat Heydarieh, Iran.


Several studies have reported applying nanoparticles improved the digestive efficiency, immunity and performance in farm animals. The present investigation was carried out to evaluate effects of dioxide titanium particles on growth and performance character. Based on previous works, it is expected that TiO2 nanoparticles (NPs) with improve feed efficiency and promote silk protein synthesis in the silkworm, can be improve important traits such as cocoon shell weight and cocoon weight. The experiment was design in completely random design with three replications. Five groups of silkworms fed diets with dioxide titanium nanoparticles at 0, 5, 10, 50, and 100 mg/l in duration 4 and 5 instars. Data were analyzed by SAS software and Duncan test was used to compare mean. It was observed that the addition of dioxide titanium nanoparticles at different levels significantly improved percent viability, cocoon and cocoon shell performance compared control group. Cocoon weights were increased 3.3 and 3.85 percent respectively in 5 and 10 mg/l dioxide titanium against control treatment. Cocoon shell weight and cocoon shell ratio were higher in 5 mg/l nanoparticles in compare with control treatment 10.40 and 6.27 percent respectively. Results showed that using dioxide titanium nanoparticle in 5 and 10 mg/l can increase cocoon and cocoon shell performance but it has not effect on these traits with higher concentration.