Influência de diferentes níveis de vitamina C na ração sobre parâmetros hematológicos de alevinos de Piaractus mesopotamicus Holmberg (Osteichthyes, Characidae)

Martins, Maurício Laterça; Castajjnolli, Newton; Zuim, S.M Fontes; Urbinati, Elisabeth Criscuolo

doi:10.1590/s0101-81751995000300016

Cited by 13 publications

(15 citation statements)

References 16 publications

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“…A close, highly correlated ( r =0.71; P <0.05) correspondence between haemoglobin and HTC was observed. All values of haemoglobin and HTC lied within recorded averages for pacu (Martins, Castagnolli, Zuim & Urbinati 1995; Tavares‐Dias, Tenani, Gioli and Faustino 1999; Tavares‐Dias, Schalch, Martins, Silva, Moraes & Perecin 1999; Martins, Moraes, Moraes & Malheiros 2000; Tavares‐Dias & Mataqueiro 2004), a solid indication of the absence of anaemia and the adequacy of all diets in this regard.…”

Section: Discussionsupporting

confidence: 63%

Growth and haematology of pacu,Piaractus mesopotamicus, fed diets with varying protein to energy ratio

Bicudo¹,

Sado²,

Cyrino³

2009

Aquaculture Research

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Haematopoiesis and blood cells'functions can be in£uenced by dietary concentration of nutrients. This paper studied the e¡ects of dietary protein:energy ratio on the growth and haematology of pacu, Piaractus mesopotamicus. Fingerling pacu (15.5 AE 0.4 g) were fed twice a day for 10 weeks until apparent saciety with diets containing 220, 260, 300, 340 or 380 g kg À 1 crude protein (CP) and 10. 88, 11.72, 12.55, 13.39, 14.22 MJ kg À 1 digestible energy (DE) in a totally randomized experimental design, 5 Â 5 factorial scheme (n 5 3). Weight gain and speci¢c growth rate were a¡ected (Po0.05) by protein level only. Protein e⁄ciency ratio decreased (Po0.05) with increasing dietary protein at all levels of dietary energy. Daily feed intake decreased (Po0.05) with increasing dietary energy. Mean corpuscular haemoglobin concentration was a¡ected (Po0.05) by DE and interaction between dietary CP and DE. Total plasma protein increased (Po0.05) with dietary protein and energy levels. Plasma glucose decreased (Po0.05) with increasing dietary protein. The CP requirement and optimum protein:energy ratio for weight gain of pacu ¢ngerlings, determined using broken-line model, were 271g kg À 1 and 22.18 g CP MJ À 1 DE respectively. All dietary CP and DE levels studied did not pose damages to ¢sh health. r 2008 Blackwell Munksgaard 486 No claim to original US government works Aquaculture Research, 2009, 40, 486^495 Growth and haematology of pacu A Ł J deAlmeida Bicudo et al. r 2008 Blackwell Munksgaard No claim to original US government works, Aquaculture Research, 40, 486^495 Ã Haematocrit. wTotal red blood cell count. zHaemoglobin. ‰Mean corpuscular volume. zMean corpuscular haemoglobin. kMean corpuscular haemoglobin concentration. ÃÃ Total plasma protein. wwPlasma glucose. zzPlasma triglycerides. ‰‰Pooled means without di¡erentiation of dietary DE. zzPooled means without di¡erentiation of dietary CP. Aquaculture Research, 2009, 40, 486^495 Growth and haematology of pacu A Ł J deAlmeida Bicudo et al. r 2008 Blackwell Munksgaard No claim to original US government works, Aquaculture Research, 40, 486^495 Aquaculture Research, 2009, 40, 486^495 Growth and haematology of pacu A Ł J deAlmeida Bicudo et al. r 2008 Blackwell Munksgaard No claim to original US government works, Aquaculture Research, 40, 486^495

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Section: Discussionsupporting

confidence: 63%

Growth and haematology of pacu,Piaractus mesopotamicus, fed diets with varying protein to energy ratio

Bicudo¹,

Sado²,

Cyrino³

2009

Aquaculture Research

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“…Resultados semelhantes foram constatados em relação à truta arco-íris, carpa indiana (Cirrhina mrigala), bagre de canal, pacu, acará-açu e Clarias gariepinus (Agrawal & Mahajan, 1980;Martins et al, 1995;Fracalossi et al, 1998;Li & Robinson, 1999;Adham et al, 2000). Por sua vez, não foram observadas alterações nos valores de hematócrito e RBC com suplementação com ácido L-ascórbico de 100 e 500 mg/kg.…”

Section: Resultsunclassified

Efeito da vitamina C no ganho de peso e em parâmetros hematológicos de tambaqui

Chagas

Val

2003

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o efeito da suplementação dietária com ácido L-ascórbico (vitamina C) no ganho de peso e em parâmetros hematológicos de juvenis de tambaqui, Colossoma macropomum. Após dez semanas, em que foram alimentados com dietas contendo 0, 100 e 500 mg de ácido L-ascórbico por kg de ração, os peixes foram capturados e imediatamente anestesiados para a coleta de sangue da veia caudal e determinação dos parâmetros hematológicos. Animais alimentados com maiores níveis de ascorbato mostraram pesos corpóreos maiores, melhores taxas de conversão alimentar e sobrevivência. A asência de ácido L-ascórbico na ração, além de causar redução nos valores de hematócrito e no número de eritrócitos, que caracteriza anemia, provocou aumento no volume corpuscular médio, na hemoglobina corpuscular média e na concentração de hemoglobina corpuscular média. Esses resultados revelam a importância do ácido L-ascórbico na dieta dos juvenis de tambaqui. O nível de 100 mg de ácido L-ascórbico/kg de ração é adequado, garantindo bom ganho de peso e manutenção da homeostase do organismo.Termos para indexação: Colossoma macropomum, suplemento alimentar, nutrição animal, piscicultura. Effect of vitamin C on weight and hematology of tambaquiAbstract -The objective of this work was to estimate the effect of L-ascorbic acid (vitamin C) dietary supplementation on the body weight and on the hematology of juveniles tambaqui, Colossoma macropomum. After ten weeks receiving diets containing 0, 100 and 500 mg of L-ascorbic acid per kg of food, the fish were netted from the tanks, immediately anesthetized and blood was withdrawn from caudal vein for analysis of hematological parameters. Animals fed on higher ascorbate levels showed higher final body weight, better feed conversion rate and survival. Also, the L-ascorbic acid free-diet resulted in reduction of hematocrit and red blood cell count, characterizing anemia, and an increase of mean cell volume, mean cellular hemoglobin and mean cellular hemoglobin concentration. These results show the importance of L-ascorbic acid supplementation in the diet of juveniles tambaqui. The level of 100 mg of L-ascorbic acid/kg diet is adequate, guaranteeing better body weight gain and maintenance of organic homeostasis.

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“…The gain in length of tilapia fed on 400 mg kg -1 VC and VE with 0.4 Se-O was greater (P < 0.05) than that of tilapia fed on 100 mg kg -1 VC and VE with 0,1 mg kg -1 VC and VE (Table 2) was similar to that of tilapia fed the diet containing 0.4 Se-I plus 400 mg kg -1 vitamins C and E. Se-O has greater availability than the inorganic form confirming the result obtained by Paripatananont and Lovell (1997), who feeding the channel catfish (I. punctatus) on 0.5 mg kg -1 organic and inorganic selenium observed that the selenium absorption in the organic form was 90.8% against 62.8% for inorganic selenium (sodium selenite). Piedras et al (2005), evaluating the performance of silver catfish (Rhamdia quelen) fed diets supplemented with 0.6 mg kg -1 organic selenium, confirmed that this form of selenium improved the weight gain and growth of silver catfish (Rhamdia quelen) compared with the same level of inorganic Results of the hematocrit analysis ( Table 2) corroborate those of Martins et al (1995), who also found no difference in blood levels of Pacu (Piaractus mesopotamicus) when supplementing the diet with 0, 50, 100, and 200 mg kg -1 vitamin C. However, these authors reported that the lack of vitamin C affects growth and makes fish more susceptible to diseases. Evaluating the addition of 0.0, 0.25, 0.50, 1.0, and 1.5 mg kg -1 organic selenium in diets for tilapia, Gomes (2008) found no significant differences in the hematocrit results , which ranged from 43.91 to 46.75%.…”

Section: Resultsmentioning

confidence: 71%

Influence of levels and forms of selenium associated with levels of vitamins C and E on the performance, yield and composition of tilapia fillet

Fonseca¹,

Silva²,

Filho³

et al. 2013

Ciênc. Tecnol. Aliment.

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Influência de diferentes níveis de vitamina C na ração sobre parâmetros hematológicos de alevinos de Piaractus mesopotamicus Holmberg (Osteichthyes, Characidae)

Cited by 13 publications

References 16 publications

Growth and haematology of pacu,Piaractus mesopotamicus, fed diets with varying protein to energy ratio

Growth and haematology of pacu,Piaractus mesopotamicus, fed diets with varying protein to energy ratio

Efeito da vitamina C no ganho de peso e em parâmetros hematológicos de tambaqui

Influence of levels and forms of selenium associated with levels of vitamins C and E on the performance, yield and composition of tilapia fillet

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