Open AccessAssessment of the efficacy of prophylactic health products on water quality and shrimp ( Penaeus monodon ) performance at the nursery phase
Author(s) -
Ali Hazrat,
Rahman Muhammad Meezanur,
Jaman Ahmed,
Eltholth Mahmoud,
Murray Francis J.
Publication year - 2021
Publication title -
aquaculture nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.941
H-Index - 79
eISSN - 1365-2095
pISSN - 1353-5773
DOI - 10.1111/anu.13257
Subject(s) - penaeus monodon , shrimp , probiotic , biology , nitrite , salinity , weight gain , zoology , feed conversion ratio , water quality , alkalinity , food science , protein efficiency ratio , litopenaeus , fishery , microbiology and biotechnology , body weight , bacteria , ecology , chemistry , nitrate , genetics , endocrinology , organic chemistry
The aim was to assess the efficacy of prophylactic health products (PHPs) on shrimp ( Penaeus monodon ) post larvae (PL) during the nursery phase. This included five treatments: infeed probiotic (F_PRO), water probiotic (W_PRO), a combination of water and infeed probiotic (FW_SYN), biofloc, a combination of biofloc and infeed probiotic (F_PRO&biofloc), and a no‐treatment control, five replicates each. Each tank was filled with 450 L water and stocked with 700 PL15, weight 0.008 ± 0.00 g at a density of 1.56 PL/L, reared for 27 days. There were no significant differences in water temperature, dissolved oxygen, alkalinity, and total ammonia nitrogen among treatments and control. pH and nitrite were lower in biofloc and F_PRO&biofloc compared to other treatments. The final body weight, weight gain, specific growth rate and food conversion ratio were significantly higher ( p ≤ .05) in F_PRO&biofloc compared to other treatments and control. A salinity stress test showed a significantly higher survival rate in F_PRO&biofloc followed by biofloc than other treatments and control. Our study indicated that rearing shrimp in biofloc alone or combined with infeed probiotic might increase growth and resistance to environmental stressors. Further on‐farm trials are required to confirm the efficacy of the PHPs.