Digestible methionine + cystine requirement for Nile tilapia from 550 to 700 g

Michelato, Mariana; Furuya, Wilson Massamitu; Graciano, Thêmis Sakaguti; Vidal, Luiz Vítor Oliveira; Xavier, Tadeu Orlandi; Moura, Lorena Batista de; Furuya, Valéria Rossetto Barriviera

doi:10.1590/s1516-35982013000100002

Cited by 28 publications

(16 citation statements)

References 33 publications

(18 reference statements)

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“…For methionine and cystine, the literature recommends values between 0.91 to 1.00% (Bomfim, Lanna, Donzele, Ferreira et al, 2008;Michelato et al, 2013) to Nile tilapia, values close to 0.90 to 0.95% for protein levels showed better performances. For threonine, the recommendation varies between 1.11 to 1.43% (Bomfim, Lanna, Donzele, Quadros et al, 2008) and the diets that showed the best values in this experiment were 1.20 to 1.70%.…”

Section: Resultsmentioning

confidence: 90%

<b>Digestible protein requirement for Nile tilapia fed with rations based on soybean meal and corn

Carneiro¹,

Pandini²,

Silva³

et al. 2017

Acta Sci. Anim. Sci.

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ABSTRACT. The objective was to determine the requirement of digestible protein (DP) for Nile tilapia fed with diets based on soybean meal and corn. Two hundred Nile tilapia juveniles, sexually reversed, were used for a trial period of 100 days. The animals were distributed in 20 boxes of 1000 L -1 in a random design with five treatments and four replications, the boxes were connected to a water recirculation system. Five isoenergetic diets were tested with different levels of digestible protein (DP): 20, 25, 30, 35 and 40%. At the end of the experimental period were evaluated the zootechnical performance data. A quadratic effect (p < 0.05) was shown to parameters of final weight, weight gain, final length, fillet yield and visceral fat with the best points that ranged from 28.3 to 29.9% of DP. The largest area of hepatocytes was found to the lowest levels of DP in the diet (20 and 25%) compared to the other levels, which were similar. Thus, Nile tilapia has adequate performance for the consumption of diets based on soybean and corn meal and the recommended level is 28.3% of PD in these conditions. Keywords: plant origin feed, aquaculture, fish nutrition.Exigência de proteína digestível para tilápias do Nilo alimentadascom rações à base de farelo de soja e milho RESUMO. Objetivou-se determinar a exigência de proteína digestível (PD) para a tilápia do Nilo, alimentada com dietas à base de farelo de soja e milho. Duzentos juvenis de tilápia do Nilo (32,80 ± 0,39 g), sexualmente revertidos, foram utilizados por um período experimental de 100 dias. Os animais foram distribuídos em 20 caixas de 1000L -1 em delineamento aleatório com cinco tratamentos e quatro repetições. As caixas eram ligadas a um sistema de recirculação de água. Foram testadas cinco dietas isoenergéticas com diferentes níveis de PD: 20, 25, 30, 35 e 40%. Ao final do período experimental, foram avaliados os dados de desempenho zootécnico. Um efeito quadrático (p < 0,05) foi mostrado aos parâmetros de peso final, ganho em peso, comprimento final, rendimento de filé e de gordura visceral com os melhores pontos que variaram de 28,3 a 29,9% de PD. A maior área dos hepatócitos foi encontrada para os níveis mais baixos de PD na dieta (20 e 25%), em comparação com os outros níveis, que foram semelhantes. Assim, pode-se afirmar que a tilápia do Nilo tem desempenho adequado para o consumo de dietas baseadas em farelo de soja e milho e o nível recomendado é de 28,3% PD nestas condições.Palavras-chave: alimentos de origem vegetal, aquicultura, nutrição de peixes.

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Section: Resultsmentioning

confidence: 90%

<b>Digestible protein requirement for Nile tilapia fed with rations based on soybean meal and corn

Carneiro¹,

Pandini²,

Silva³

et al. 2017

Acta Sci. Anim. Sci.

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“…, 5.8–6;.1 g kg −1 diet) and Nile tilapia (Michelato et al . , 5.5 g kg −1 diet; Nguyen & Davis , 4.9 g kg −1 diet). Except for different tilapia species, the above discrepancies in methionine requirement among fishes may be attributed to different diet composition, fish size and experimental conditions.…”

Section: Discussionmentioning

confidence: 99%

“…For example, adult Nile tilapia weighed from 550 to 700 g were chose in the study of Michelato et al . (), while juvenile fish (8.95 g) were used in our experiment; diets contained 15.8 KJ g −1 gross energy were used in the experiment of Lin et al . (), which was lower than that in the present study (16.9 versus 17.8 MJ kg −1 ).…”

Section: Discussionmentioning

confidence: 99%

The effect of dietary methionine concentrations on growth performance of juvenile Nile tilapia (Oreochromis niloticus) fed diets with two different digestible energy levels

Liang

Lemme

et al. 2016

Aquacult Nutr

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A growth trial was conducted to examine the effect of dietary digestible energy (DE) content on methionine (Met) utilization and requirement in juvenile Nile tilapia (Oreochromis niloticus). Ten iso‐nitrogenous (288 g kg−1 protein) practical diets, with two DE levels (10.9 MJ kg−1; 12.4 MJ kg−1) and five methionine supplementation levels (0, 1, 2, 4 and 6 g kg−1), were hand‐fed twice daily to triplicate groups of Nile tilapia (initial body weight 8.95 ± 0.06 g) for 8 weeks. Weight gain (WG) and specific growth rate (SGR) increased significantly with increasing dietary methionine concentration at the same DE content (P < 0.001). At the same dietary methionine level, WG and SGR of fish fed high‐DE diets were significantly higher than that of fish fed low‐DE diets (P = 0.0001), although no interaction was found between dietary DE and methionine supplementation. Based on quadratic regression analysis between dietary methionine concentration and weight gain, optimal methionine requirement for maximum growth, expressed as g Met required kg−1 diet (low‐ versus high‐DE diets), increased as diet DE concentration increased (7.34 versus 9.90 g kg−1 diet, respectively; with cysteine 4.70 g kg−1 diet). The results indicated that diet DE content affects methionine utilization and requirement in juvenile Nile tilapia, fish fed high‐DE diets required more methionine for maximum growth.

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“…The nutritional methionine requirement of tilapia is 0.7 % of the dietary protein. However, methionine is precursor of cystine, thus, it is recommended supplying 0.9 % methionine to tilapia diets, and CSM meal can then be a good methionine source of diets as it may supply up to 1.02 % digestible methionine (Diogenes et al, 2016;Michelato et al, 2013;Shiau, 2002).…”

Section: Amino Acid and Macronutrients Digestibility Of Chlorella Sormentioning

confidence: 99%

Digestibility and pricing of Chlorella sorokiniana meal for use in tilapia feeds

Barone

Sonoda

Lorenz

et al. 2018

Sci. agric. (Piracicaba, Braz.)

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Several microalgae contain in excess of 50 % crude protein with amino acid profile comparable to that of fish meal. In addition, high polyunsaturated fatty acid contents encourage their use in animal feeding and nutrition, particularly in the formulation and processing of aquafeeds. This study aims at estimating the feasibility of Chlorella meal as feed ingredient for the feeding and nutrition of farmed tilapia based upon digestibility data. Juvenile tilapia were stocked in conical-bottomed tanks (200 L) with superficial, continuous water flow, and fed to apparent satiation in three daily meals with a reference diet and a test diet containing 30 % lyophilized Chlorella sorokiniana added of an inert marker. Feces were collected overnight by sedimentation in refrigerated, plastic containers coupled to the tanks and analyzed for determination of chemical composition and inert marker contents to estimate apparent digestibility coefficients (ADCs) of protein and energy of Chlorella meal; registered ADCs of Chlorella meal were 90.5 and 84.22, respectively. A pricing model considering the quantity of digestible nutrient was proposed based on ADCs of Chlorella and compared with the price of fishmeal (FM) and soybean meal (SBM). The indicative prices to elicit the use of Chlorella as a protein source rather than FM or SBM for the feed and nutrition of tilapia were 2.65 USD kg -1 and 0.66 USD kg -1 , respectively.

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Digestible methionine + cystine requirement for Nile tilapia from 550 to 700 g

Cited by 28 publications

References 33 publications

<b>Digestible protein requirement for Nile tilapia fed with rations based on soybean meal and corn

<b>Digestible protein requirement for Nile tilapia fed with rations based on soybean meal and corn

The effect of dietary methionine concentrations on growth performance of juvenile Nile tilapia (Oreochromis niloticus) fed diets with two different digestible energy levels

Digestibility and pricing of Chlorella sorokiniana meal for use in tilapia feeds

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