Fillet and carcass yield and fillet chemical composition of piava from fish farming and from the wild

Geraldo, Andressa Mariza Ribeiro; Cunha, Larissa da; Hoshiba, Marcio Aquio; Cardoso, Matheus dos Santos; Silva, Vagner Callai da; Tamajusuku, Alessandra Sayuri Kikuchi

doi:10.20950/1678-2305.2015v41nep743

Cited by 4 publications

(6 citation statements)

References 15 publications

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“…In general, lower variations of crude protein and ash are observed, while humidity and crude lipid are quite variable (Breck, 2014). As fish grows in size, it deposits relatively more fat than other tissues, as previously reported for other fish species (Geraldo et al, 2015).…”

Section: Discussionsupporting

confidence: 70%

“…The mean value of dressed (938.63 g/kg) and fillet (425.23 g/kg) yields of wild H. malabaricus observed in this study approximated the 928.1 g/kg and 419.9 g/kg (skin-on fillet), respectively, observed in piava, Leporinus obtusidens by Geraldo et al (2015); similarly, it approximated the 923.5 g/kg of dressed yield obtained in rainbow trout (Souza et al, 2015) and 914.4 g/kg in surubin, Pseudoplatystoma spp (Fantini et al, 2014). However, higher values of fillet yield (skin-on) were observed in European sea bass (457.0 g/kg), gilthead sea bream (Sparus aurata; 477.3 g/kg), and rainbow trout (Testi et al, 2006).…”

Section: Discussionsupporting

confidence: 69%

“…In the present study, the high variation observed in fillet yield (358.93 to 465.11 g/kg) is in agreement to previously described in the same fish species (348.2 to 538.5 g/kg) by Santos et al (2001). Fillet yield varies among fish species (Rasmussen and Ostenfeld, 2000;Testi et al, 2006) and is markedly affected by nutrition (Lanari et al, 1999;Geraldo et al, 2015) and processing method (Margeirsson et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

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Mathematical models to predict growth, fillet traits, and composition of wild traíra, Hoplias malabaricus

et al. 2019

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This study aimed to determine the length-weight relationship and mathematical models to predict dressed and fillet weight and yield and fillet composition of wild traíra, Hoplias malabaricus (Bloch, 1794). A total of 80 marketable-sized fish from 292.28 to 2879.57 g and 32.06 to 61.19 cm were used. The length:weight ratio was estimated using the equation: W = a × L b , in which W is body weight (g) and L is length (cm). The models of dressed and fillet weight and yield and body were elaborated using first-order (ŷ i = ß0 + ß1x i) or second-order (ŷ i = ß0 + ß1x i + ß1x i 2) linear regression analyses. The value of slope b in the length:weight ratio was 3.3732 and intercept was 0.0029. The prediction equations obtained for dressed weight, fillet weight, dressed yield, fillet yield, fillet gross energy, moisture, crude protein, crude lipid, and ash were, respectively: ŷ = 0.3244 + 0.9373W, ŷ = 0.7651 + 0.4181W, ŷ = 939.8015 + 0.0019W, ŷ = 420.55170 + 0.0064W, ŷ = 997.9600 + 0.0630W, ŷ = 810.6500 − 0.0085W, ŷ = 184.080 − 0.0111W, ŷ = 3.1131 + 0.0049W, and ŷ = 10.6110 + 0.0009W, in which W is the body weight of fish (g). We demonstrated the possibility of elaborating realistic expressions to describe degutted weight, fillet weight, and fillet composition. However, lower mathematical adjustment was observed to estimate realistic prediction of dressed and fillet yield.

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Section: Discussionsupporting

confidence: 70%

Section: Discussionsupporting

confidence: 69%

Section: Discussionmentioning

confidence: 99%

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Mathematical models to predict growth, fillet traits, and composition of wild traíra, Hoplias malabaricus

et al. 2019

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“…The low linear and non‐significant correlation coefficients between the morphological variables WEIGHT and CARW and WFWR with their yields, that is, CARY and YFWR, can be explained by the low variation of these yields in this weight range, since the variables of body yields show lower variation than the other variables, which has already been verified in some species of fish, where these variables present a lower coefficient of variation (Geraldo et al, ; Reis Neto et al, ). Similar results were found in Pacu fish, where a non‐significant correlation was found between body yields and morphometric variables (Costa, ).…”

Section: Discussionmentioning

confidence: 73%

Associations between morphometric variables and weight and yields carcass in PirapitingaPiaractus brachypomus

et al. 2019

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The objective of this work was to evaluate the association between morphometric variables and carcass characteristics in Pirapitinga. We used a thousand specimens of Pirapitinga with an average weight of 1,200 g, which were stunned, slaughtered, weighed, measured, and processed for morphometric and processing yield analysis, to obtain weights, carcass and fillet yields. Initially, the linearity of the variables was verified. Pearson's simple and partial correlation tests were performed between all metrics. Track analysis was performed considering the weights and yields of carcass and filet as dependent variables and the others as independent variables. Ridge regression models were used to eliminate the effects of multicollinearity among the independent variables. Observations showed that the simple correlations between body weights and yields were superior to the partial ones in terms of magnitude. The length and circumference of the specimens were the measures most linearly associated with weight, carcass weight and fillet with rib weight. As for carcass yield and fillet yield, linear correlation coefficients were low and not significant when associated with body weights.With the path analysis, we could observe significant positive correlations between the morphometric measurements for weight, carcass weight and fillet with rib weight.The standard length, body circumference and body circumference/body height ratio are the most correlated. The latter are the most important variables in the evaluation of body weights in Pirapitinga fish. They can serve as criteria for indirect selection in searching for fish with better carcass characteristics. As for fillet and carcass yields, the morphometric variables have not shown to be efficient for indirect selection. K E Y W O R D Sbreeding fish, correlation, multivariate, path analysis, round fish

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“…Fillets production can create new windows of opportunity for investment and greater returns on tilapia culture arising from enhanced consumption of decent products from otherwise small sized fish with many sharp bones. FAO [84] stated that a large proportion of cultural tilapia is marketed as fillets and according to [85] and [86], fillet and carcass yields are very vital indices for both fish processing industry and fish farmers because they can determine the economic worth of a fish as well as add value to the ultimate product. The range of fillet yield obtained in this work with a minimum at D0 and a significant maximum at D20 was similar to 30-37 % in [84] and [87] on Nile tilapia as well as 31.3% and 33.4% in [88] and [89] respectively on red tilapia.…”

Section: Discussionmentioning

confidence: 99%

Implications of dietary Delonix regia seed meal on growth, feed utilization, haematology and fillet yield of red Nile tilapia Oreochromis niloticus

Umanah¹,

David²

2021

World J. Adv. Res. Rev.

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Delonix regia is commonly called Flamboyant or flame of the forest. The seeds were fermented, boiled, sundried and then ground into powdered meal. 40% crude protein based test diets containing Delonix regia seed meal D0 = 0%; D15 = 15%; D20 = 20% and D25 = 25% inclusion levels respectively were prepared. Red tilapia (Oreochromis niloticus) fingerlings of 6 weeks old were acclimatized for two weeks and then stocked in 12 hapas at 15 fish per hapa measuring 0.6 m × 1.2 m × 0.7 m placed in a concrete tank. Each diet was assigned to fish in a separate hapa in triplicate and administered at 3% fish body weight per day for 16 weeks. Fish weight and length were taken initially, bi-weekly and terminally. Water quality was monitored weekly. Number of fish at the end was recorded and survival rate, growth, feed utilization, fillet yield and blood parameters were determined. The data were subjected to the analysis of variance and mean separation (P= 0.05). Survival rate was highest in fish raised on D20 and least in D25 without any significant difference across the range. Mean growth performances, feed utilization indices and fillet yield were generally congruent between D20 and D25 with varying degrees of significant difference to other feeds. Results of blood assay did not depict harmful effects of the test diets indicating that the fish enjoyed some good measures of health. The gross performance of fish on D20 was optimal. It was therefore concluded that 20% dietary inclusion level of fermented, cooked and dried flamboyant seed was the best for the red tilapia (Oreochromis niloticus) post fingerlings.

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Fillet and carcass yield and fillet chemical composition of piava from fish farming and from the wild

Cited by 4 publications

References 15 publications

Mathematical models to predict growth, fillet traits, and composition of wild traíra, Hoplias malabaricus

Mathematical models to predict growth, fillet traits, and composition of wild traíra, Hoplias malabaricus

Associations between morphometric variables and weight and yields carcass in PirapitingaPiaractus brachypomus

Implications of dietary Delonix regia seed meal on growth, feed utilization, haematology and fillet yield of red Nile tilapia Oreochromis niloticus

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