Producción Científica

Biofloc technology is a bioremediation process that allows minimizing the exchange of water and its use in aquaculture systems. Objective: to present trends in scientific publications about Biofloc technology for fish production, using bibliometric analysis tools. Materials and methods: the Web of Science database was used, with a search equation and information processing supported by the BibExcel and VOSviewer tools. A systematic analysis was carried out on the recovered documents, considering type of culture, experimental time, growth and protein yield, population density, water quality, microbiological and physiological characteristics of the crop. Categories were determined in which the studies related to technology and the main challenges identified in the application of technology are defined. Results: 258 documents were found, 94.12 % corresponded to research articles. Productivity was higher in 2014 and 2016. The Federal University of Santa Catarina and Federal University of Rio Grande FURG in Brazil have the highest production. In co-authorship, 18 nodes were identified. 59.3 % of the documents reported investigations with shrimp and 18.99 % with tilapia. The best production times were in the ranges of 41-50 days (12.4 %), 21-30 days (11.24 %) and 51-60 days (9.68 %). The C:N ratio was not reported in 92.6 % of the studies. However, 3.48 % reported ratios of 15:1 and 1.16 % of 20:1. The main categories were performance (44.18 %) and productivity (26.35 %). Conclusions: Biofloc technology represents an opportunity for sustainability in species aquaculture practices. A gradual growth in research processes was evidenced in recent years; the main studies are related to the performance in terms of growth and optimization of the protein conversion processes in the analyzed crops, whether individual or in polyculture.

Global warming is a problem that threatens humanity, with livestock being one of the causes. A systematic literature review was carried out by using some appropriate elements of the PRISMA statement to identify disciplines that work to mitigate the effects of the livestock industry by organizing them according to their approach to addressing this problem. The main objective is to find information and classify the disciplines, papers, literature review methodologies, research gaps, authors, and journals developing the management of the cattle supply chain. This paper could analyze and mitigate the adverse effects on society and the environment generated by the industry, organizing them according to their approach. Twenty databases were consulted between March and May 2020, from which 146 review documents were chosen. The papers reviewed were published between 2003 and 2020. The eligibility criteria for selection were open access to the full text, publication in an indexed journal, and a focus on any discipline related to cattle. The unselected papers did not have DOIs or duplicates, and those focused on other types of meat and book chapters. Subsequently, the information in the selected papers was described and consolidated, and these papers had 602 authors and were from 99 journals. Next, a discipline categorization was proposed. The results were organized, showing that among all the analysis criteria, the category of veterinary medicine had the best results in terms of indicators; therefore, additional research is needed on the other disciplines, especially in culture, technology, management, quality control, tanneries, and transportation, as there was less research within these disciplines. It is recommended that research on a mix of the different proposed disciplines be conducted. The proposed categorization’s main contribution is to identify and group the cattle supply chain’s different disciplines and the definition of research gaps organized under a structure organizational management model. Finally, a multicriteria selection methodology must be used that prioritizes the discipline categories proposed in this review to guide future research.