Autochthonous probiotic as growth promoter and immunomodulator for Astyanax bimaculatus cultured in water recirculation system

Autochthonous probiotic as growth promoter and immunomodulator for Astyanax bimaculatus cultured in water recirculation system

This work aimed to evaluate the probiotic Lactobacillus spp. in the microbiota of Astyanax bimaculatus reared in a water recirculation system. The experiment was randomized, using 800 postlarvae distributed into eight polyethylene containers, separated into two treatments, in quadruplicate: suppleme...

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Bibliographic Details
Published in:Aquaculture research Vol. 49; no. 8; pp. 2808 - 2814
Main Authors: Moraes, Andressa Vieira de, Pereira, Marina de Oliveira, Moraes, Klayton Natan, Rodrigues‐Soares, Jorge P, Jesus, Gabriel Fernandes Alves, Jatobá, Adolfo
Format: Journal Article
Language:English
Published: Oxford Hindawi Limited 01-08-2018
Subjects:
Animals
Astyanax bimaculatus
Bacteria
Containers
Control
Dietary supplements
Evaluation
Fish
Fish culture
Food production
haematology
Hematology
Hemoglobin
Immunocompetence
Immunology
Lactate
Lactic acid
Lactic acid bacteria
Lactobacillus
Lactobacillus spp
Leukocytes
microbiology
Microbiota
Monocytes
Platelets
Polyethylene
Polyethylenes
Probiotics
Recirculating aquaculture systems
Thrombocytes
Waterborne diseases
yellow tail lambari
Yogurt
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Summary:This work aimed to evaluate the probiotic Lactobacillus spp. in the microbiota of Astyanax bimaculatus reared in a water recirculation system. The experiment was randomized, using 800 postlarvae distributed into eight polyethylene containers, separated into two treatments, in quadruplicate: supplementation with Lactobacillus spp. (Probiotic) and no supplementation (Control). After 90 days of culture, 13 fish per container were anaesthetized. Three of these underwent microbiological evaluation, and haematological analyses were carried out on five. Immunological assessment was performed on another five fish. Zootechnical parameters were evaluated for all animals. In the microbiological evaluation, the probiotic group presented higher counts of lactic acid bacteria, but lower counts of Vibrio spp., Pseudomonas spp., and Staphylococcus spp., when compared with control. After haematological analysis, the supplemented group presented low haematimetric indices of Mean Corpuscular Haemoglobin Concentration and Mean Corpuscular Haemoglobin (MCHC and MCH, respectively) and higher amounts of total leucocytes, thrombocytes and circulating monocytes when compared with control. The immunological profile did not differ between treatments. In the zootechnical performance, probiotic group presented higher productivity, survival and apparent food efficiency when compared with control. Therefore, when Lactobacillus spp. was supplemented in the diet of A. bimaculatus, immunocompetence and the zootechnical performance of animals increased.
ISSN:1355-557X
1365-2109
DOI:10.1111/are.13743