This laboratory provides core analytical support
for animal, feed, nutrition, and seafood research and also
conducts studies on the effects of marine bioactive components
and micronutrients on aquatic animal growth. In the past year,
the laboratory analyzed hundreds of aquatic samples, including
feeds, feed ingredients, shrimp, fish, moi eggs and larvae,
live feeds for larval fish, and shrimp pond microbial community
biomass for their content of 23 fatty acids and 20 amino acids,
which are building blocks of lipid and protein, respectively.
The laboratory recently developed methods for analyzing fat-soluble
and water-soluble vitamins, carotenoid pigments, phytosterols,
peptides, and polyphenol antioxidants. It now anticipates the
development of additional analytical methods in coming years,
including measurements of tannin and isoflavones in feeds, digestive
enzyme activity in aquatic animals, as well as assessment of
digestion, absorption, and utilization of macronutrients and
The OI laboratory is currently conducting research on the isolation
and identification of bioactive compounds from shrimp pond microbial
floc communities that have the potential to enhance shrimp productivity.
The floc develops naturally in outdoor pond or tank water and
comprises many different types of small, living organisms such
as microalgae, bacteria, rotifers, ciliates, nematodes, and detritus.
The lab is currently extracting different fractions from floc
bioactive components, and will incorporate them into shrimp feeds
which will be tested for their growth-enhancing potential in
future feeding trials.
The aquaculture industry is expanding, and needs detailed nutritional
biochemical information for efficient production. The Nutritional
Biochemistry Laboratory is working on incorporating new biochemical
analytical tests from the food and feed industries to meet these
needs. Its welcomes HPU staff and students interested in cooperative