TY - JOUR
T1 - Effects of Inorganic and Organic Fertilization on Physicochemical Parameters, Bacterial Concentrations, and Shrimp Growth in Litopenaeus vannamei Cultures with Zero Water Exchange
AU - Lara-Anguiano, Guillermo F.
AU - Esparza-Leal, Héctor M.
AU - Sainz-Hernández, Juan C.
AU - Ponce-Palafox, Jesús T.
AU - Valenzuela-Quiñónez, Wenceslao
AU - Apun-Molina, Juan P.
AU - Klanian, Mariel Gullian
PY - 2013/8
Y1 - 2013/8
N2 - To identify ways to improve water quality and shrimp production in closed systems, two parallel experiments (one in tanks and one in ponds) were conducted using Pacific white shrimp, Litopenaeus vannamei, cultures. In both experiments, the effects of inorganic (Nutrilake®) and organic (molasses) fertilization on physicochemical parameters, bacterial concentrations, and shrimp performance under zero water exchange were evaluated. Fertilization with both molasses and Nutrilake enhanced the feed conversion rate, as well as shrimp survival and production. In tanks, the shrimp survival and production rates were highest in the molasses treatment, but this effect was not observed in ponds. In ponds, fertilization with Nutrilake increased nitrogen and phosphorus concentrations more than did the controls and molasses treatments toward the end of the experiment. In tanks, fertilization with molasses reduced ammonia concentrations toward the end of the experiment, but the same effect was not observed in ponds. In ponds, fertilization reduced the proportion of Vibrio spp. bacteria, which most likely reduced the incidence of disease from these potentially pathogenic organisms. In both culture systems, fertilization increased the proportion of Bacillus spp., which most likely enhanced food availability.
AB - To identify ways to improve water quality and shrimp production in closed systems, two parallel experiments (one in tanks and one in ponds) were conducted using Pacific white shrimp, Litopenaeus vannamei, cultures. In both experiments, the effects of inorganic (Nutrilake®) and organic (molasses) fertilization on physicochemical parameters, bacterial concentrations, and shrimp performance under zero water exchange were evaluated. Fertilization with both molasses and Nutrilake enhanced the feed conversion rate, as well as shrimp survival and production. In tanks, the shrimp survival and production rates were highest in the molasses treatment, but this effect was not observed in ponds. In ponds, fertilization with Nutrilake increased nitrogen and phosphorus concentrations more than did the controls and molasses treatments toward the end of the experiment. In tanks, fertilization with molasses reduced ammonia concentrations toward the end of the experiment, but the same effect was not observed in ponds. In ponds, fertilization reduced the proportion of Vibrio spp. bacteria, which most likely reduced the incidence of disease from these potentially pathogenic organisms. In both culture systems, fertilization increased the proportion of Bacillus spp., which most likely enhanced food availability.
UR - http://www.scopus.com/inward/record.url?scp=84881423541&partnerID=8YFLogxK
U2 - 10.1111/jwas.12058
DO - 10.1111/jwas.12058
M3 - Artículo
SN - 0893-8849
VL - 44
SP - 499
EP - 510
JO - Journal of the World Aquaculture Society
JF - Journal of the World Aquaculture Society
IS - 4
ER -