&lt;b&gt;Carcass yield and proximate composition of bullfrog (&lt;i&gt;Lithobates catesbeianus&lt;/i&gt;)

Ayres, Athos Alexandre Cesnik; Damasceno, Danielle Zanerato; Moro, Evandro Bilha; Maccari, Glaucia Mara Rorato; Nervis, Juliana Alice Lösch; Bittencourt, Fábio

doi:10.4025/actascianimsci.v37i4.28196

Cited by 11 publications

(8 citation statements)

References 10 publications

(10 reference statements)

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“…The final average live weight of 230 g for bullfrogs in this study aligns closely with the recommended slaughter weight of 250 g (Ayres et al, 2015). The peak deposition of nutrients (protein and minerals) in the bullfrog carcass occurs until reaching 250 g, after which greater fat deposition in adipose tissue is observed (Pereira et al, 2015).…”

Section: Resultssupporting

confidence: 80%

Bullfrog (Aquarana catesbeiana) farming in adapted water tanks from fall to spring in the state of Rio de Janeiro

Pereira

2023

RSD

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Economically viable and readily accessible solutions are necessary for the sustainability of the economic endeavors of small-scale frog producers. An experiment was conducted with the objective of assessing the growth of post-metamorphosis frogs in adapted polyethylene water tanks in the period from fall to spring in the Southern Hemisphere. A total of 23 animals were employed, with a stocking density of 33 animals/m2, exhibiting an average weight of 17.39 g. The frogs were housed in a 500-L polyethylene water tank that was adapted to allow complete drainage at its outlet. The water was consistently replaced before each feeding, and the animals were provided with two daily feedings of commercial carnivorous fish food containing 400 g/kg of crude protein. Biometric measurements were conducted on 12 occasions, along with individual weighing of the frogs. The evaluated parameters included body growth (g), weight gain (g/day), feed intake (g), and feed conversion (g/g). Additionally, production costs were evaluated. Body weight (g) data were subjected to exponential regression analysis. The growth curve of the bullfrog adhered to the exponential regression model. Frog growth during the fall and winter seasons was sluggish, but, began to accelerate as spring emerged, closely associated with ambient temperature. Feed conversion rate stood at 1.89 g/g. The use of polyethylene water tanks shows promise as a viable environment for frog farming, particularly for small-scale producers.

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Section: Resultssupporting

confidence: 80%

Bullfrog (Aquarana catesbeiana) farming in adapted water tanks from fall to spring in the state of Rio de Janeiro

Pereira

2023

RSD

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“…Nobrega et al () and Ayres et al () obtained the proximate composition of the frog legs. The values of total lipids, protein, ash, and moisture were 0.6%, 19.4%, 1%, and 74% (Nobrega et al, ) and 0.99%, 15.8%, 3.23%, and 79.4% (Ayres et al, ), respectively. Thus, despite being a residue of the bullfrog meat production, the FBB has high potential as a feedstock for obtaining lipids.…”

Section: Resultsmentioning

confidence: 99%

Oil Extraction from Rana catesbeiana by Supercritical Carbon Dioxide and Mechanical Pressing

Perina

Santos

Fiorese

et al. 2018

J Americ Oil Chem Soc

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Oil extraction from the fat body of bullfrog (FBB) using supercritical carbon dioxide through supercritical fluid extraction (SFE) and mechanical pressing (ME) was assessed. ME extraction was performed within a temperature range from 40 to 90 C and the SFE at 40 C and 15 MPa. The peroxide index (PI) and oxidative induction time (OIT) of the oil obtained from the ME were negatively influenced by the increase in the extraction temperature; however, the FBB oil extracted at 40 C presented a high quality with acidity index and PI values of 4.7 mg KOH g −1 and 0.50 mEq kg −1 , respectively. The oils obtained from both processes presented similar physicochemical characteristics, especially related to the composition. Significant amounts of ω-3 (≈3.5%), ω-6 (≈19%), and ω-9 (≈50%) fatty acids were achieved. Thus, the valorization of the FBB through the recovery of its oil may be of great interest mainly due to the high yields achieved (66.7%).

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“…Liver pâté is a traditional foodstuff manufactured using pig or calf liver, porcine back fat, and other characteristic ingredients, introduced in several countries for commercial purposes [7]. In this regard, frog meat contains high protein and adequate amino acid contents, as well as low lipid levels and high polyunsaturated fatty acid percentages, resulting in low fat and cholesterol products.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical, Microbiological, and Toxicological Characterization of Pâté Prepared from the Meat and Liver of Bullfrog (Aquarana catesbeiana) Carcasses

Magalhães,

Moebus,

Castagna

et al. 2023

Foods

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The development of balanced, healthy, ready-to-consume, and easy-to-prepare products has led to the development of new food technologies. Despite their high commercial value, bullfrog (Aquarana catesbeiana) carcasses result in low yields, with the thighs being the most marketed in comparison to other carcass portions. In this sense, liver pâté is a traditional food consumed worldwide, mainly in European countries, and may be prepared by incorporating bullfrog meat by-products and certain viscera. In this context, the aim of the present study was to develop a pâté product based on a mixture comprising 50% grounded bullfrog torso meat and 50% liver paste, with each treatment incorporating 10% liver paste increments, totaling five final mixtures. The nutritional compositions and physicochemical, microbiological, and toxicological characteristics of each mixture were assessed. The dry matter percentage of the prepared product was determined to be 27.00%, while mineral content was 1.45%, lipid content was 4.00%, and total protein content was 20.00%. Finally, microbiological counts were in agreement with current food safety regulations. The developed pâté serves as a standard, recycling underused industrial materials, adding value to the production chain at low operational costs, creating a more accessible market, and promoting the popularization of this type of meat.

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<b>Carcass yield and proximate composition of bullfrog (<i>Lithobates catesbeianus</i>)

Cited by 11 publications

References 10 publications

Bullfrog (Aquarana catesbeiana) farming in adapted water tanks from fall to spring in the state of Rio de Janeiro

Bullfrog (Aquarana catesbeiana) farming in adapted water tanks from fall to spring in the state of Rio de Janeiro

Oil Extraction from Rana catesbeiana by Supercritical Carbon Dioxide and Mechanical Pressing

Physicochemical, Microbiological, and Toxicological Characterization of Pâté Prepared from the Meat and Liver of Bullfrog (Aquarana catesbeiana) Carcasses

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