Input management in integrated agriculture–aquaculture systems in Yucatan: Tree spinach leaves as a dietary supplement in tilapia culture

Poot-López, Gaspar Román; Hernández, Juan M.; Gasca‐Leyva, Eucario

doi:10.1016/j.agsy.2009.11.003

Cited by 14 publications

(9 citation statements)

References 22 publications

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“…The incorporation of AW (considered to be of zero cost) as one of the ingredients in the fish feed lowered the feed cost from 0.51 to 0.45 US $/kg, which corresponds to a 12% decreased feed cost. Similar results were reported by Poot-López et al [30], when tree spinach was used as a dietary ingredient for tilapia culture in an IAA system. Other examples of studies involving use of vegetables as fish feed, with similar results, include Mathia and Fotter [48] and Swain et al [49].…”

Section: Discussionsupporting

confidence: 90%

“…The commonly used feed ingredients (fishmeal, soybean, and cereal bran) are increasingly becoming scarcer due to a decrease in production and an increase in competition from other consumers [29]. The use of vegetable wastes would therefore be a sustainable complement to improve the availability of fish feeds [30,31]. Despite the common use of vegetable wastes (insect damaged, unmarketable, or overgrown leaves) as fishpond inputs among small scale farmers in Tanzania [32,33], there is no clear information on the use of these by-products for improvements of the farm productivity and the farmer's income.…”

Section: Introductionmentioning

confidence: 99%

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An Ecological and Economical Assessment of Integrated Amaranth (Amaranthus hybridus) and Nile Tilapia (Oreochromis niloticus) Farming in Dar es Salaam, Tanzania

Mulokozi

Berg

Lundh

2020

Fishes

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Organic wastes can be recycled in an ecologically sound way in fishponds by applying integrated agriculture and aquaculture systems (IAA). This kind of waste recycling can help to protect the environment from pollution and improve fishpond yields. Additionally, IAA provides an opportunity for diversification of the output from two or more existing subsystems leading to higher overall farm economic returns. This study explored the potential application of amaranth wastes (AW) as a dietary ingredient for tilapia in a tilapia-amaranths integrated system (ITA). An experimental diet (AD) contained 10% (based on the control diet, CD) inclusion of AW collected from a nearby vegetable market. The experiments included triplicate treatments with; (i) fish fed on AD, where the pond water was used for irrigating the amaranth plants (IAA-fish), and (ii) fish fed on CD, where no pond water was used for irrigating the amaranth plants (non-IAA fish). 90 days after fish stocking, eighteen 4 m2 amaranth plots were prepared and treated with (i) tap water without fertilization (control amaranths), (ii) water from IAA-fish pond and organically fertilized (IAA amaranths), and (iii) tap water and inorganically fertilized (non-IAA amaranths). The use of AW improved the fish feed conversion ratio. The overall net income from ITA was 3.2, 2.3, 2.6, and 1.8 higher than from non-IAA amaranths, IAA-amaranths, non-IAA fish, and IAA fish sub-systems respectively.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

An Ecological and Economical Assessment of Integrated Amaranth (Amaranthus hybridus) and Nile Tilapia (Oreochromis niloticus) Farming in Dar es Salaam, Tanzania

Mulokozi

Berg

Lundh

2020

Fishes

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“…Table 1 also displays the most relevant characteristics of all MMs. We borrowed the original attributes from the literature [46], before inviting farmers and other stakeholders to help with the professional judgment process. The characteristics were coded as dummy variables for each MM to fit the LCM [42].…”

Section: Latent Class Modelingmentioning

confidence: 99%

Evaluation of GHG Mitigation Measures in Rice Cropping and Effects of Farmer’s Characteristics: Evidence from Hubei, China

Tong

Zhang

2017

Sustainability

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Greenhouse Gas emissions from agricultural activities, such as rice cropping, have been proven to be an important cause of climate change, with constant barriers and constraints in the implementation and promotion of mitigation measures among farmers in China. However, there has been a lack of research focusing on specific mitigation measures and their characteristics. In this paper, we applied the expert assessment and best-worst scaling method to evaluate mitigation measures in rice cropping from the perspectives of effectiveness and applicability. The results showed that no mitigation measure in rice cropping was best from both an effectiveness and applicability viewpoint. However, the study found that "reducing the use of chemical fertilizers" was the most effective one, while "applying soil testing and formulated fertilization" was the most applicable one. Additionally, the older farmers spending more time on non-agricultural jobs and farming more plots of land were more likely to believe that mitigation measures related to the management of input elements would be more applicable compared to soil and water management or some types of new science and technology. Finally, we suggested that the agricultural extension agencies should popularize input elements management such as improvement of fertilizer or seeds among older farmers, and meanwhile promote soil cultivation management and new technologies for agriculture in areas where the land is more concentrated such as plains.

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“…The water flux through the fish tanks for the three treatments was continuous with a 13 L/min flow in the fish culture tanks and 6 L/min flow for the hydroponic tanks of PAK and COR. Each (F) tank had 0.75 m 3 , water from these aquaculture tanks flowing through a 75 mm tube to the rectangular 1.6 m 3 sedimentation tank (S). Water from the S tank flowed to a 1 m 3 reserve tank (R1) and was then sent to the 0.4 m 3 elevated tank (E) using a 1/2 hp water pump.…”

Section: Experimental System and Operationmentioning

confidence: 99%

“…Thus, it is important to establish sustainable aquaculture systems that maximize benefits and minimize the accumulation of detrimental compounds and other types of negative impacts on both natural and social environments [2,3]. The concept of sustainability has prompted the need to propose major adjustments in conventional food production systems to make them more viable and compatible with environmental, social and economic needs [4].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Biomass Yield and Water Treatment in Two Aquaponic Systems Using the Dynamic Root Floating Technique (DRF)

et al. 2015

Self Cite

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were measured in fish culture and hydroponic culture once a week at two times, morning (9:00 a.m.) and afternoon (3:00 p.m.). The fish biomass production was not different in any treatment (p > 0.05) and the total plant yield was greater (p < 0.05) in PAK than in COR. For the hydroponic culture in the a.m., the PO4 in PAK than in COR. The PAK treatment demonstrated higher food production and water treatment efficiency than the other two treatments.

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Input management in integrated agriculture–aquaculture systems in Yucatan: Tree spinach leaves as a dietary supplement in tilapia culture

Cited by 14 publications

References 22 publications

An Ecological and Economical Assessment of Integrated Amaranth (Amaranthus hybridus) and Nile Tilapia (Oreochromis niloticus) Farming in Dar es Salaam, Tanzania

An Ecological and Economical Assessment of Integrated Amaranth (Amaranthus hybridus) and Nile Tilapia (Oreochromis niloticus) Farming in Dar es Salaam, Tanzania

Evaluation of GHG Mitigation Measures in Rice Cropping and Effects of Farmer’s Characteristics: Evidence from Hubei, China

Evaluation of Biomass Yield and Water Treatment in Two Aquaponic Systems Using the Dynamic Root Floating Technique (DRF)

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