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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Economic feasibility of probiotic use in the diet of Nile tilapia, Oreochromis niloticus, during the reproductive period

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Author(s):
Danielle de Carla Dias [1] ; Fernanda de Paiva Badiz Furlaneto [2] ; Fábio Rosa Sussel [3] ; Leonardo Tachibana [4] ; Giovani Sampaio Gonçalves [5] ; Carlos Massatoshi Ishikawa [6] ; Mariene Miyoko Natori [7] ; Maria José T. Ranzani-Paiva [8]
Total Authors: 8
Affiliation:
[1] Instituto de Pesca - Brasil
[2] Agência Paulista de Tecnologia dos Agronegócios - Brasil
[3] Instituto de Pesca - Brasil
[4] Instituto de Pesca - Brasil
[5] Instituto de Pesca - Brasil
[6] Instituto de Pesca - Brasil
[7] Instituto de Pesca - Brasil
[8] Instituto de Pesca - Brasil
Total Affiliations: 8
Document type: Journal article
Source: Acta Sci., Anim. Sci.; v. 42, 2020-02-03.
Abstract

ABSTRACT. This work examines the economic advantages of probiotic use in the diet of Nile tilapia broodstock during the reproductive period. For this purpose, Bacillus subtilis was applied as a feed additive. The experimental design was completely randomized with three treatment groups: the T0 control (without probiotic), the T1 continuous probiotic intake, and the T2 alternate probiotic intake at a dose of 0.50 g kg-1 of feed (1010 CFU g-1) with four replicates. For the reproduction assay, 118 females and 48 males of Nile tilapia (proportion 4 males:9 females. hapa-1) (weight 527.65 g ± 185.98 g and length 30.16 cm ± 3.57 cm) were distributed into 12 hapas (3.5 × 2.0 × 1.5 m). Reproductive variables (spawning female percentage, egg production, and fry production) were used to calculate the economic feasibility indexes (total cost of nutrition [TcN], gross revenue [GR], and total operational profit [ToP]). The results show increasing values for spawning female number, collected eggs, and surviving fry in the probiotic groups. We recommend continuous intake of probiotic (feed with addition of probiotic) at a dose of 0.5 g kg-1 of feed (1010 CFU g-1) during the breeding season of Nile tilapia, due to the suitable reproductive indexes and profitability. (AU)

FAPESP's process: 10/11141-6 - Reproductive indicators of tilapia, Oreochromis niloticus, feed with probiotic composed by Bacillus subtilis
Grantee:Maria José Tavares Ranzani de Paiva
Support Opportunities: Regular Research Grants
FAPESP's process: 10/11694-5 - Reproductive indicators of tilapia, Oreochromis niloticus, feed with probiotic composed by Bacillus subtilis
Grantee:Danielle de Carla Dias
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 12/13741-6 - Reproductive indicators of Nile Tilapia, Oreochromis niloticus fed diets supplemented with probiotic composed of Bacillus subtilis
Grantee:Danielle de Carla Dias
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 13/19502-6 - Reproductive indicators of Nile Tilapia, Oreochromis niloticus fed diets supplemented with probiotic composed of Bacillus subtilis
Grantee:Danielle de Carla Dias
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor