February 15-18, 2009 Washington State Convention Center Seattle ...

THE SYNERGISTIC USE OF DIETARY BIOTIC SUPPLEMENTS FOR ENHANCING THE
GROWTH AND SURVIVAL IN THE LARVAL STAGES OF EUROPEAN LOBSTER Homarus
gammarus
Carly L. Daniels*, Simon J. Davies and Dom. Boothroyd
The University of Plymouth
Devon, PL8 8BL, UK
carly.daniels@nationallobsterhatchery.co.uk
With a growing realisation that prevention is better than cure the use of prebiotics and probiotics, as dietary supplements, is developing
as an essential in aquaculture, world and species wide. We tested the effects of commercial prebiotics and probiotics
on survival, growth performance, post larval quality and feed/cost benefit in Zoeal European Lobster, Homarus gammarus.
Four replicate 30 day feeding trials were conducted at the National Lobster Hatchery, Cornwall, UK. In a single trial four larval
cones (80l) were each stocked with 440-1080 zoeal I lobsters (dependent on replicate) and offered enriched Artemia feed at
5 per ml. Cones were offered with one of four diets containing prebiotic (MOS - Bio-Mos ® ) and/or probiotic (Bacillus spp.
- Sanolife ® ) (Control, Diet 1 (165ppt Bacillus spp.), Diet 2 (20ppt MOS), Diet 3 (165ppt Bacillus spp. and 20ppt MOS)) for 30
days. Five lobsters from each cone were measured (weight and carapace length) on day 1, 3, 9, 13, 18 of development. Moulting
success was also recorded from day 14 to 30 with survival calculated at day 30. After 18 days larval H. gammarus lobsters fed
a diet simultaneously supplemented with prebiotics and probiotics (Diet 3) had significantly (P