Desempenho e parâmetros metabólicos de rã-touro, Rana catesbeiana, alimentada com diferentes rações comerciais

Fenerick, Jaime; Stéfani, Marta Verardino De

doi:10.4025/actascianimsci.v27i3.1214

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…The development of frog farming worldwide in recent years has led to an increase in the number of studies designed to elaborate nutritionally adequate feeds with a better cost–benefit relationship (Tokur, Gürbüz, & Özyurt, ). Furthermore, significant improvements in feeding techniques have been studied (Casali, Moura, Lima, & Silva, ; Castro, Argentim et al., ; Castro, Ribeiro et al., ; Fenerick Junior & Stéfani, ; Oliveira et al., ). Other studies have evaluated the nutritional value of bullfrog feeds by determining the metabolizable energy of some ingredients used in these diets (Braga, Lima, Donzele, & Castro, ; Castro, Lima, Donzele, & Braga, ; Castro, Silva, Santos, Mondenesi, & Almeida, ; Rodrigues, Moura, & Lima, ).…”

Section: Introductionmentioning

confidence: 99%

Digestibility of nutrients and energy in ingredients for bullfrogs during different phases of development

et al. 2017

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The ability of frogs to digest dietary nutrients changes with growth, with the animals becoming more or less demanding. The objective of this study was to determine the apparent digestibility coefficients of protein, energy and ether extract of 14 ingredients used in bullfrog diets (spray-dried blood meal, hydrolysed feather meal, poultry by-product meal, red blood cell concentrate, tilapia by-product meal, sardine fishmeal, salmon fishmeal, meat and bone meal, corn gluten meal, soybean meal, corn, wheat bran, soy protein concentrate and soybean oil). A total of 2,325 bullfrogs (Lithobates catesbeianus) in different phases of development were used: early phase (mean weight of 30-50 g), growth phase (80-110 g) and finishing phase (150-200 g). Faeces were collected using the method of dissection. Marked differences in digestibility of the ingredients were observed between the different phases of frog development. Among the ingredients studied, salmon fishmeal and corn gluten meal showed good utilization of the protein (78.9% and 86.7%, respectively) and energy fraction (89.4% and 83.3%, respectively). The salmon fishmeal, poultry by-product meal, sardine fishmeal, soy protein concentrate, wheat bran and soybean oil exhibited good ether extract utilization (81.2%-92.8%), recommending their use in bullfrog diets. K E Y W O R D Sapparent digestibility coefficients, energy, ether extract, feeds, Lithobates catesbeianus, protein

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Section: Introductionmentioning

confidence: 99%

Digestibility of nutrients and energy in ingredients for bullfrogs during different phases of development

et al. 2017

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“…Performance parameters evaluated in this study, such as FLW, FW, WG, DWG, and FCR, presented similar results between treatments with 400 and 500 g kg −1 protein. It is worth mentioning that the least favorable results were obtained with the commercial diet, which is currently used as a staple diet in commercial frog farming in Mexico and other parts of Latin America (Casali et al, 2005;Fenerick Jr and De Stéfani, 2005;FAO, 2022). In this study, a diet containing 400 g kg −1 of protein (of at least 80% animal origin) and 50 g kg −1 lipids (protein:lipid ratio: 7.4; gross energy: 18.2 MJ kg −1 ) is suitable for bullfrogs ranging from 10 to 100 g body weight.…”

Section: Discussionmentioning

confidence: 99%

“…Bullfrog (Lithobates catesbeianus) has been introduced in different countries for aquaculture purposes due to its easy adaptation to farming conditions and human handling. Although the bullfrog is the most exploited frog species worldwide (Tokur et al, 2008;Huang et al, 2014), the farming technology, including a specific feed formulation, is not currently available, and therefore, fish feeds are commonly used to feed them on farms during the grow-out stage (Casali et al, 2005;Fenerick Jr and De Stéfani, 2005;FAO, 2022;Zhang et al, 2015). The information that currently exists is the dietary protein requirement for bullfrog (446 g kg −1 for tadpoles and 400 g kg −1 for juveniles and young adults), using different ingredients and fatty acid sources (Carmona-Osalde et al, 1996;Secco et al, 2005;Olvera-Novoa et al, 2007;Vaz, 2007;Huang et al, 2014;Pereira et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Effect of dietary protein:lipid ratio on growth and body composition in bullfrog (Lithobates catesbeianus)

Fonseca-Madrigal,

Andrade-López,

Martínez-Palacios

et al. 2023

Revista Brasileira De Zootecnia

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A feeding trial was performed to assess dietary protein:lipid ratios for the grow-out phase of the bullfrog (Lithobates catesbeianus). Nine balanced isoenergetic diets were formulated, combining three different protein levels (300, 400, and 500 g kg −1 ) with three different lipid levels (50, 100, and 200 g kg −1 ), designated as P300/50L, P300/100L, P300/200L, P400/50L, P400/100L, P400/200L, P500/50L, P500/100L, and P500/200L. Additionally, a commercial fish feed, commonly used in Mexico to feed bullfrogs, was also tested during the experiment. Growth performance, animal performance parameters, carcass composition, and fatty acid profiles in muscle and liver were evaluated. The feeding trial results showed that all the experimental diets enhanced growth, feed conversion ratio, and frog-leg weight compared with the commercial diet. Bullfrogs had higher growth with 400 and 500 g kg −1 of dietary protein regardless of dietary lipid content. It was also notable that with the P500/200L diet, frogs doubled the weight of those fed the commercial diet. DHA, EPA, and total omega-3 fatty acids were double in muscle and two to eight times higher in the liver compared with the commercial diet. In all cases, the final proximal composition of carcass reflected the diet composition. It is suggested that a diet containing 400 g kg −1 of protein and 50 g kg −1 lipids (protein/lipid ratio: 7.4; gross energy: 18.2 MJ kg −1 ) is adequate for bullfrog performance during the grow-out phase to achieve market size in a shorter period, thus, reducing farming risks and production costs.

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An overview of the Brazilian frog farming

Ribeiro

Toledo

2022

Aquaculture

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Desempenho e parâmetros metabólicos de rã-touro, Rana catesbeiana, alimentada com diferentes rações comerciais

Cited by 3 publications

References 2 publications

Digestibility of nutrients and energy in ingredients for bullfrogs during different phases of development

Digestibility of nutrients and energy in ingredients for bullfrogs during different phases of development

Effect of dietary protein:lipid ratio on growth and body composition in bullfrog (Lithobates catesbeianus)

An overview of the Brazilian frog farming

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