Introduction of the American BullfrogLithobates catesbeianus(Anura: Ranidae) in Natural and Modified Environments: An Increasing Conservation Problem in Argentina

Barrasso, Diego Andrés; Cajade, Rodrigo; Nenda, Santiago Javier; Baloriani, Gabriel Ignacio; Herrera, Raúl

doi:10.2994/057.004.0109

Cited by 31 publications

(33 citation statements)

References 32 publications

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“…Until now, the only other work that has looked into Bd infection of feral bullfrogs in central Argentina did not detect chytrid (25 specimens examined histologically) (17). Our results confirmed the presence of Bd in feral bullfrogs from western Argentina.…”

Section: Abstract Bullfrogs Invasion Emerging Infectious Diseasessupporting

confidence: 84%

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Pathogenic fungus in feral populations of the invasive North American bullfrog in Argentina

et al. 2017

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Section: Abstract Bullfrogs Invasion Emerging Infectious Diseasessupporting

confidence: 84%

“…Escaped individuals became established and the species spread rapidly (16). Nevertheless assessments of the presence of Bd in feral bullfrogs from Argentina are lacking (17,18).…”

Section: Abstract Bullfrogs Invasion Emerging Infectious Diseasesmentioning

confidence: 99%

Pathogenic fungus in feral populations of the invasive North American bullfrog in Argentina

et al. 2017

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“…This broad natural distribution is indicative of the adaptability and success of this species (Adams and Pearl 2007). This adaptability has apparently helped American bullfrogs establish populations in a diversity of environments in Argentina including semi desert scrublands in San Juan (Sanabria et al 2005), humid Atlantic forest in Misiones (Pereyra et al 2006), Pampean grasslands in Buenos Aires (Barrasso et al 2009), and Chacoan xeric forest in Córdoba and Salta provinces (Akmentins et al 2009, this work).…”

Section: Resultsmentioning

confidence: 83%

“…In South America, introduced populations of American bullfrog have been reported in Colombia (Rueda Almonacid 2000), Brazil (Borges-Martins et al 2002), Ecuador (Cisneros-Heredia 2004), Venezuela (Hanselmann et al 2004), Uruguay (Laufer et al 2008), and Chile, Guyana, Paraguay, and Perú (Frost 2009 (Sanabria et al 2005), Misiones (Pereyra et al 2006), Buenos Aires (Barrasso et al 2009), and Córdoba provinces (Akmentins et al 2009). The extent of this biological invasion is an increasing conservation concern.…”

Section: Introductionmentioning

confidence: 95%

American bullfrog Lithobates catesbeianus (Shaw, 1802) invasion in Argentina

Akmentins

Cardozo

2009

Biol Invasions

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“…It is very resistant to climatic variations and can support up to negative temperatures, besides being very resistant to management. For this reason, it has been introduced in several countries for commercial purposes (Barrasso, Cajade, Nenda, Baloriani & Herrera, 2009).…”

Section: Introductionmentioning

confidence: 99%

Carcass yield and proximate composition of bullfrog (Lithobates catesbeianus)

Ayres

Damasceno

Moro

et al. 2015

Acta Sci. Anim. Sci.

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ABSTRACT. This work evaluated five classes of weight of bullfrog (Lithobates catesbeianus) seeking to define the ideal slaughter weight for the species. We used 79 bullfrogs, distributed in a completely randomized design (class 1 < 100 g (n = 10); class 2 from 101 to 150 g (n = 17); class 3 from 151 to 200 g (n = 24); class 4 from 201 to 250 g (n = 14); and class 5 >251 g (n = 14)), which were euthanized, weighted and gutted. For the carcass yield, we weighed the clean torso, thighs, liver, skin and head. The clean torso was subjected to chemical composition analysis. The carcass yield was, on average, 49% with no difference between weight classes (p > 0.05). The yield of posterior thighs was significantly higher for the lower weight class, which also presented higher percentage of paws (28.37 ± 0.63 and 9.33 ± 0.21, respectively) (p < 0.05). The percentages of visceral fat and skin showed a progressive increase along with the weight of the animals; the class with individuals weighing 201-250 grams showed the higher values (p < 0.05). The chemical composition indicated that individuals above 251 grams showed lower values of ether extract and higher values of crude protein (0.99 ± 0.14 and 15.80 ± 0.64, respectively) (p < 0.05). So, it is recommended the slaughter of bullfrogs weighing more than 201 grams, because of better yield and meat quality.Keywords: exotic species, meat processing, raniculture. Rendimento de carcaça e composição centesimal da rã-touro (Lithobates catesbeianus)RESUMO. O objetivo do trabalho foi comparar cinco diferentes classes de peso de rã-touro (Lithobates catesbeianus), buscando definir o peso ideal de abate para a espécie. Foram utilizados 79 exemplares de rãs-touro, distribuídas em um delineamento inteiramente casualizado (classe 1 <100 g (n = 10); classe 2 de 101 a 150 g (n = 17); classe 3 de 151 a 200 g (n = 24); classe 4 de 200 a 250 g (n = 14), e classe 5 > 251 g (n = 14)), que foram eutanaziados, pesados e eviscerados. Para o rendimento da carcaça foram pesados: tronco limpo, coxas, fígado, patas, pele e cabeça. O tronco limpo foi submetido à análise de composição centesimal. O rendimento de corpo limpo foi em média 49%, sem diferença entre classes (p > 0,05). O rendimento das coxas posteriores foi significativamente maior para a menor classe de peso, e essa classe também apresentou maior porcentual de patas (28,37 ± 0,63 e 9,33 ± 0,21, respectivamente) (p < 0,05). As porcentagens de gordura visceral e pele apresentaram um aumento progressivo concomitante ao peso dos animais, sendo que a classe com indivíduos de 201 a 250 g apresentou os maiores índices (p < 0,05). Na composição centesimal observou-se que indivíduos acima de 251 g, apresentaram menores valores de extrato etéreo e maior valor de proteína (0,99 ± 0,14 e 15,80 ± 0,64, respectivamente) (p < 0,05). Para melhor aproveitamento é recomendado que rãs-touro sejam abatidas com peso superior a 201 g, pois apresentam melhores rendimentos e características da carne.Palavras chave: espécie exótica, processamento de carne, ranic...

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Introduction of the American BullfrogLithobates catesbeianus(Anura: Ranidae) in Natural and Modified Environments: An Increasing Conservation Problem in Argentina

Cited by 31 publications

References 32 publications

Pathogenic fungus in feral populations of the invasive North American bullfrog in Argentina

Pathogenic fungus in feral populations of the invasive North American bullfrog in Argentina

American bullfrog Lithobates catesbeianus (Shaw, 1802) invasion in Argentina

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

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