| dc.description.abstract | The study was conducted to evaluate the effect of probiotic products on growth
stimulation, immune response, and prevention of acute hepatopancreatic
necrosis disease (AHPND) in white leg shrimp after 28 days of use. Shrimp
length and weight were measured periodically every 7 days, and immunological
parameters were collected on the same day. The test results showed that
probiotic and postbiotic applications improved the overall water quality via TAN
(total ammonia nitrogen) and nitrite contents. In this testing conditions, these
applications did not negatively impact growth in length and weight compared
with the control treatment, and the additions also gave some indications on
potential benefits in longer duration and at large scale. Total hemocyte counts,
granular, hyaline cell count, and cortisol levels did not show clear differences or
evidences between treatments to conclude solid beneficial supplements on
these aspects. While the Pro Mac product showed good protection for shrimp
with AHPND after 28 days of feeding with a mortality rate after 14 days of
immersion was 20%, statistically significant (p<0.05) lower than the control
group, which was 44%. | en_US |
