A 60-day feeding trial published in Veterinary Sciences found that replacing fishmeal in red tilapia diets with a blend of Azolla microphylla meal and soybean meal progressively reduced growth performance and worsened feed conversion as replacement rose from 25% to 75%, while fillet essential amino acid content held up through moderate levels but fell significantly at the highest inclusion rate.
A project led by the University of the Philippines Visayas and funded by DOST-PCAARRD has found that lemongrass and citronella essential oils show promise as natural, antibiotic-free feed additives for saline-tolerant tilapia, though researchers say further validation is needed before commercial application.
Animal nutrition company Orffa has named Professor Nadia Everaert of KU Leuven to its Scientific Advisory Board, expanding the company's scientific depth in gut health and immunity research for poultry and pigs.