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Scientific Electronic Archives
Agricultural Science
DOI: 10.36560/16520231689
Submitted: 2022-10-21
Published: 2023-04-30

Cost-benefit analysis of the use of carp pituitary extract and GnRH analogues in the induced spawning of tambaqui Colossoma macropomum

Universidade Federal do Amazonas
Embrapa Amazônia Ocidental
Embrapa Pesca e Aquicultura
Embrapa Amazônia Ocidental
fish farming, economics, pituitary extract

Abstract

In the fish farming industry, some species do not spawn under farming conditions due to the lack of natural stimuli, which is essential for the final maturation of gametes and ovulation. In such cases, treatments with exogenous hormones are necessary to obtain larvae, which then maintain the entire production line. Currently, the production of tambaqui larvae is based on the administration of carp pituitary extract (CPE), which is an efficient biological product, but without identification and quantification of the bioactives present in it, in addition to representing a possible carrier of diseases from the donor fish (carp) to tambaqui. However, on the market there are synthetic hormones (GnRH analogues) able to induce the reproduction of tambaqui in captivity, and that have already been tested for this purpose, with good results. However, the analysis of the cost-efficiency of the use of these substances in the induced reproduction of fish are still lacking. The goal of this work was to evaluate the cost-effectiveness of using commercial synthetic hormones analogues to GnRH compared to CPE. For this, 28 females were induced with gonadorelin (Profertil®), buserelin acetate (Sincroforte®), salmon GnRH analogue - sGnRHa (Ovaprim®) and CPE (n = 7/treatment). The cost of each dose per kilogram of body weight (BW) and the spawning response to each hormonal treatment, considering spawning rate, relative fecundity, fertilization rate and hatching rate, were evaluated. sGnRHa was the most expensive treatment in the production of hatched larvae, followed by gonadorelin and CPE, while buserelin had a price up to 90% lower than the other products.

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How to Cite

Oliveira, R. G. de S., Pinheiro, J. O. C., Pedroza-Filho, M. X. ., & O’Sullivan, F. L. de A. . (2023). Cost-benefit analysis of the use of carp pituitary extract and GnRH analogues in the induced spawning of tambaqui Colossoma macropomum. Scientific Electronic Archives, 16(5). https://doi.org/10.36560/16520231689