Technical efficiency analysis of marine shrimp farming (Litopenaeus vannamei) in biofloc and conventional systems: A case study in northeastern Brazil

Abstract

Shrimp farming has a great ecological, economic, and social importance in northeastern Brazil. Although the conventional farming system is widely used, biofloc technology (BFT) system has been developed to reduce environmental impacts and optimizing the production. Thus,the present study evaluated the technical efficiency of production cycles of Litopenaeus vannamei in conventional and BFT systems.We analyzed 48 production cycles in the conventional system in 2013 and 2014 and 9 cycles in the BFT system in 2014 through data envelopment analysis (DEA). The inputs corresponded to the population density (post-larvae m-2), amount of feed (kg ha-1 cycle-1), labor (man ha-1) and power supply (HP ha-1), whereas the yield (kg ha-1 cycle-1) was considered the output. The results indicated four production cycles (7.0%) technically efficient, three in the conventional system and one in the BFT. By comparing the productive systems, there was significant difference in their mean scores of technical efficiency. There was a greater influence of the management inefficiency on the conventional system, while the production scale reduced the average scores of technical efficiency in the BFT system. These results may help to improve the development of sustainable L. vannamei farming in both systems by reducing waste and increasing profits.

Evaluating input use efficiency in shrimp farming by stochastic production frontier approach

“…The lowest technical efficiency score of 0.49 was estimated for traditional shrimp farms, and the highest score of 0.61 was estimated for scientific shrimp farm (Bhattacharya, 2008). In addition to this, higher technical efficiency was noticed in biofloc system (0.89) than the conventional (0.79) shrimp farming of Litopenaeus vannamei (Rego et al., 2018).…”

Eco-Efficiency in Farm Management for Sustainable Agriculture: a Two-Stage Data Envelopment Analysis in Wheat Production

“…Based on [25] previous work, the DEA model was developed by [ 28] as an empirical frontier analysis technique [ 38,24]. It is a useful decision-making tool and one of the most frequently used methods among the nonparametric linear programming methods in the literature on-farm efficiency measurements [39][40][41].…”

“…It can be used to determine and increase to optimize the performance of the productive units where they need to improve their efficiency concerning the use of inputs [31,42]. The DEA method calculates the frontier production function of a set of DMUs and evaluates the relative TE of each production unit by estimating the frontier output given the physical input quantities and chosen production characteristics [41,[43][44][45].…”

Analisis Margin Pemasaran Komoditas Tambak Air Payau Skala Tradisional Plus di Pasuruan, Jawa Timur

“…Pengembangan komoditas unggulan daerah merupakan salah satu upaya yang dilakukan oleh pemerintah dalam pengembangan perekonomian daerah dengan melihat potensi pertanian yang dimiliki (Nguyen et al, 2019;Quach et al, 2017;Reggo et al, 2018). Komoditas unggulan yang dikembangkan merupakan komoditas yang memiliki keunggulan komparatif serta daya saing tinggi terhadap komoditas sejenis pada suatu daerah dibandingkan dengan daerah lain.…”