Digestible lysine requirement of Nile tilapia fingerlings fed arginine-tolysine-balanced diets

Furuya, Wilson Massamitu; Graciano, Thêmis Sakaguti; Vidal, Luiz Vítor Oliveira; Xavier, Tadeu Orlandi; Gongora, Leonardo Dantas; Righetti, José Sérgio; Furuya, Valéria Rossetto Barriviera

doi:10.1590/s1516-35982012000300003

Cited by 38 publications

(26 citation statements)

References 24 publications

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“…The same observations were made for protein retention, which was highest in fish fed the dietary treatments with a lysine level of 21, 29 and 33 g/kg. This trend of weight gain is consistent with the results reported by earlier workers (Ahmed & Khan, ; Furuya et al., ; Xie et al., ). The reduction in the growth of fish fed higher than the required levels of dietary lysine may be due to the stress caused by excess amount of amino acid in the body of fish leading to extra energy expenditure towards deamination and excretion (Abidi & Khan, ).…”

Section: Discussionsupporting

confidence: 93%

Dietary lysine requirement of juvenile dusky kob, Argyrosomus japonicus

2017

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To determine dietary lysine requirement of dusky kob, Argyrosomus japonicus, six isonitrogenous and isoenergetic diets (431 g/kg crude protein, 141 g/kg lipid and 20 kJ/kg) were formulated with graded levels of crystalline L‐lysine (18–42 g/kg of the dry diet). The protein source in the basal diet comprised fishmeal and soya, where a combination of L‐aspartic and L‐glutamic acids was maintained at a ratio of 1:1, and all diets were supplemented with a mixture of crystalline essential amino acids to simulate the amino acid profile in dusky kob. Dietary treatments were randomly assigned to triplicate groups of 12 fish (4.5 ± 0.2 g, mean weight; 66.5 ± 1.1 mm, total length ± SD), which were fed to apparent satiation three times daily for 12 weeks. The fish fed dietary L‐lysine at 21, 29 and 33 g/kg dry diet showed the highest specific growth rates (SGR) and the lowest feed conversion ratio. For most amino acids, retention in the body of the fish increased with an increase in dietary lysine from 18 to 21 g/kg, and it reached a maximum somewhere between 21 and 33 g/kg, where after amino acid retention decreased with increasing dietary lysine. Based on SGR and using segmented broken‐line analysis, the dietary L‐lysine requirement of juvenile dusky kob was estimated at 31.7 ± 1.6 g/kg dry diet corresponding to 73.5 g lysine per kg protein.

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Section: Discussionsupporting

confidence: 93%

Dietary lysine requirement of juvenile dusky kob, Argyrosomus japonicus

2017

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“…The literature presents some data related to the essential amino acids requirements for Nile tilapia and according to He et al (2013), lysine and methionine are the most limiting amino acids in diets based on plant origin feed. The lysine requirement for Nile tilapia varies between 1.31 to 2.32% (Furuya et al, 2012Michelato et al, 2016), the values of dietary total lysine that showed the best results in this experiment remained between 1.79 to 1.91%.…”

Section: Resultsmentioning

confidence: 58%

<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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“…As regards Nile tilapia, data on AA requirements were made available long back by Santiago and Lovell (). Some studies have looked specifically into the Lys requirement of Nile tilapia (Liebert & Benkendorff, ) and even on available Lys requirement (Furuya et al, ). However, to our knowledge very few researches have been conducted to estimate dietary lysine requirement of the GIFT strain of Nile tilapia.…”

Section: Introductionmentioning

confidence: 99%

Effects of dietary L‐lysine supplementation on growth, body composition and muscle‐growth‐related gene expression with an estimation of lysine requirement of GIFT tilapia

Prabu¹,

Felix²,

Uma³

et al. 2019

Aquacult Nutr

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An 8‐week feeding trial was conducted with extruded practical diets containing 320 g/kg of crude protein from plant‐based sources to determine the effects of L‐lysine on growth performances, muscle‐growth‐related gene (myoD, myogenine and myostatin) expression and haemato‐biochemical responses in juvenile genetically improved farmed tilapia (GIFT). Five isonitrogenous and isoenergetic diets were formulated to contain graded levels of lysine (14.3, 16, 17.5, 19 and 20.5 g/kg of diet). Each diet was randomly assigned to triplicate groups of 30 juvenile fish (5.2 ± 0.1 g), which were fed thrice a day (9:00, 13:00 and 17:00 hr). Maximum growth performances were observed in fish fed with lysine at 19 g/kg of diet. There was no significant (p > .05) effect on whole‐body composition and amino acids profile by dietary lysine supplementation. Significant (p < .05) changes were observed in relative expression of muscle‐growth‐related genes namely myoD and myogenine and in plasma metabolites by dietary lysine supplementation. In contrast, the relative expression of myostatin was not affected by dietary lysine supplementation. Broken‐line regression analysis and second‐order polynomial regression analysis of weight gain and N gain against dietary lysine levels showed that the dietary lysine requirement for juvenile GIFT tilapia was 18–18.3 g/kg of diet and 19.3–19.5 g/kg of diet, respectively.

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Digestible lysine requirement of Nile tilapia fingerlings fed arginine-tolysine-balanced diets

Cited by 38 publications

References 24 publications

Dietary lysine requirement of juvenile dusky kob, Argyrosomus japonicus

Dietary lysine requirement of juvenile dusky kob, Argyrosomus japonicus

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

Effects of dietary L‐lysine supplementation on growth, body composition and muscle‐growth‐related gene expression with an estimation of lysine requirement of GIFT tilapia

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