1Department of Tropical Agriculture and International Cooperation, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan
2Department of Food Science, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan
International Master’s Degree Program in Food Science, International College, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan
*Corresponding authors’ E-mail: kafle@mail.npust.edu.tw
Online published on 13 September, 2023.
Royal jelly production depends on several factors, including honey bee species, nutritional status of the colony, colony health, and age of larval grafting. In this study, the effects of Italian honey bee (Apis mellifera ligustica) larvae age on the royal jelly yield and 10-hydroxy-2-decenoic acid (10-HDA) content were investigated under field conditions. It was found that the production of royal jelly was significantly higher when 1st to 3rd instar larvae were grafted than the 4th instar. However, 10-HDA content of the 4th instar larvae grafted was the highest among all larval stages. The age of larvae has remarkable effects on the yield and 10-HDA content of royal jelly.
10-HDA, Apis mellifera, Larval grafting, Royal jelly production