EFFECT OF PREBIOTIC SUPPLEMENT CHIA SEEDS ON FOOD UTILIZATION IN BOMBYX MORI L. BIVOLTINE DOUBLE HYBRID (FC1 x FC2) RACE.

Silk farming is an agro based industry which involves production of silk from silkworm. The different varieties of leaf of Morus alba L. are the solo source of the food for silkworm, Bombyx mori L. (Lepidoptera: Bombycidae). The nutritional enrichment of mulberry leaves plays a very important role in yielding good quality cocoons. In recent years, chia seeds (Salvia hispanica L.) have become one of the world's most recognizable foods to have good protein content and its higher proportion of á-linolenic acid and omega-3 fatty acids making it a good nutritional supplement. In the present investigation the effect of different chia seeds concentrations (1, 1.50 and 2.0% w/v) were used along with the mulberry leaves fed ad libitum to know its effect on food utilization and growth in the silkworm double hybrid FC₁ x FC₂ race from I to V instar larvae at 25±2°C with relative humidity of 75±5% and control were taken for comparing the experimental work. The food utilization parameters like food intake, faeces defecation, assimilation, food converted, oxidation, feeding rate, assimilation rate, conversion rate, metabolic rate, assimilation efficiency and conversion efficiency (K1 and K2) were studied. Results showed that the mulberry leaves supplemented with chia seeds as a feed to B. mori has direct effect on enhancing the growth of the larva, reduced larval period and food intake compared to control group. It has been observed that the 2.0% chia seeds treated group plays a significant role with an increase in growth and better food intake which averaged 6171.519 mg/mg/day compared to control group i.e., 3831.965 mg/mg/day and followed by other two chia seeds treated groups i.e., 1.50 and 2.0% concentrations. [ABSTRACT FROM AUTHOR]