Effect of feeding and lack of food on the growth, gross biochemical and fatty acid composition of juvenile catfish

Zamal, Hossain; Ollevier, Frans

doi:10.1111/j.1095-8649.1995.tb05980.x

Cited by 41 publications

(30 citation statements)

References 18 publications

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“…This states that the dietary nutrients were used by the candidate species as was observed earlier for rohu (Mishra, 2000). Significant relative decrease of SFA (14:0) in both liver and muscle of red tilapia (De Silva et al, 1997) and catfish (Zamal and Ollevier, 1994) during starvation has been reported earlier. This study observed similar effects on SFA level in fed tilapia.…”

Section: Discussionsupporting

confidence: 65%

“…Even though lot of work has been done on the effect of starvation on the FA content of tilapia, reports are limited on the dietary effect on tissue FA profile (De Silva et al, 1997). In fed catfish, liver SFA (14:0) decreased significantly compared with control, whereas MUFA (16:1n9 and 18:1n9) and PUFA (20:5n3 and 22:6n3) remained same up to the end of the feeding study and in muscle, the SFA and MUFA remained similar throughout the experiment with no significant variation of PUFA over the initial level (Zamal and Ollevier, 1994). The total FA in liver and muscle of hybrid tilapia fed with commercial pellets, were reported to decrease and increase, respectively with growth, while significant proportional increase of individual SFA and MUFA in liver was noticed up to 24 th day of feeding (De Silva et al, 1997).…”

Section: Discussionmentioning

confidence: 91%

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Growth performance, body composition and fatty acid profile of liver and muscle in tilapia, Oreochromis mossambicus (Peters, 1852) fed algal meal incorporated diets

Patra¹,

Mishra²,

Patro³

et al. 2017

Indian J. Fish.

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The present study was conducted to evaluate the effect of algal meal incorporated diets on the growth performance and fatty acid profile of tilapia Oreochromis mossambicus (Peters, 1852). Control diet (Diet 1) for the study was formulated with rice bran, groundnut oil cake (GNOC) and soybean meal. Six iso-energetic and iso-nitrogenous test diets (Diets 2 to 7) were prepared by incorporating (@40%) one of the four microalgae viz., Anabaena cylindrical (AN; Nostoc salbasa (NS); Spirulina platensis (SP) and Westiellopsis prolifica (WS) or with an algal meal mixture containing the above four algae plus the macroalgal species viz., Gracilaria edulis (GE) and Enteromorpha intestinalis (EI) mixed in equal proportions along with sunflower oil and cod liver oil (by totally replacing rice bran, GNOC and soyabean meal of the control diet) (AMM+O diet, Diet 6) and AMM without addition of oils served as AMM diet (Diet 7). The algal meal supplemented diets were tested against a control diet to find out their suitability for culture of tilapia fingerlings. The fish (av. wt. 2.8 ± 0.4 g) were fed up to satiation for 56 days at 28±2 0 C. Significant (p<0.05) enhancement in growth was observed with AN (565.2%) diet followed by SP (500%) and WS (400%) compared to control (402.3%). The AN diet showed best performance in terms of feed conversion ratio (FCR), protein efficiency ratio (PER) and specific growth rate (SGR) while AMM diet showed least efficiency. Fish fed with SP diet showed better apparent net protein utilisation (ANPU%) as compared to other diets. Saturated fatty acid (SFA) in the liver and muscle decreased while monounsaturated (MUFA) and polyunsaturated (PUFA) fatty acids increased over their respective initial values in all the dietary groups except in groups fed with AMM+O and AMM. The n-6 level of liver and muscle increased with SP diets. Substantial increase in docosahexaenoic acid (DHA, 22:6n3) and eicosapentaenoic acid (EPA, 20:5n3) in fish fed with WS emphasised the benefits of its use as dietary ingredients for tilapia. The results clearly indicated that algae like AN and SP incorporated in tilapia diet significantly enhance growth and carcass protein, whereas WS helps to improve the levels of the essential n-3 fatty acids (EPA and DHA).

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Section: Discussionsupporting

confidence: 65%

Section: Discussionmentioning

confidence: 91%

Growth performance, body composition and fatty acid profile of liver and muscle in tilapia, Oreochromis mossambicus (Peters, 1852) fed algal meal incorporated diets

Patra¹,

Mishra²,

Patro³

et al. 2017

Indian J. Fish.

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“…Enquanto juvenis de pacu (Piaractus mesopotamicus) mantiveram o peso corporal está-vel, após 60 dias de restrição alimentar, tanto em épocas de temperaturas mais altas (26,0 o C) (Souza, 1998) quanto em mais baixas (23,6 o C) (Souza et al, 2000), Clarias gariepinus apresentou perda de peso em período de jejum e temperatura semelhantes (Zamal & Ollevier, 1995). Perdas também foram registradas para Acipenser transmontanus (Hung et al, 1997) e Salmo salar (Einen et al, 1998) em períodos mais longos a temperaturas mais baixas.…”

Section: Introductionunclassified

Avaliação do crescimento e do custo da alimentação do pacu (Piaractus mesopotamicus Holmberg, 1887) submetido a ciclos alternados de restrição alimentar e realimentação

et al. 2003

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RESUMO -Avaliaram-se os efeitos da utilização de ciclos alternados de restrição alimentar e realimentação no crescimento do pacu, durante o período de engorda, e a viabilidade desta prática na produção comercial da espécie. Juvenis foram distribuídos em três tanques e submetidos a diferentes manejos alimentares, constituindo os tratamentos: A (alimentado ad libitum), B (restrição alimentar de 4 semanas, realimentado por 9 semanas) e C (6 semanas de restrição alimentar, realimentado por 7 semanas), em um total de 13 semanas por ciclo (4 ciclos experimentais). No final de cada ciclo alimentar, 20 peixes de cada tratamento foram amostrados e os dados biométricos registrados. Os valores obtidos para peso, comprimento total e fator de condição (K) foram submetidos a ANOVA e as médias comparadas pelo teste de Duncan. Os resultados mostraram que o tratamento C é o mais indicado somente para outono/inverno, promovendo maior crescimento, menor custo com ração, baixa conversão alimentar e maior receita líquida parcial. Entretanto, durante as estações mais quentes do ano (primavera/verão) outros programas de alimentação devem ser testados, utilizando-se períodos mais curtos de restrição alimentar. Quando se tratou da produção anual, o tratamento A respondeu melhor em termos de biomassa produzida, apesar do maior gasto com alimentação, visto que, com o aumento da temperatura, o crescimento dos peixes dos demais tratamentos ficou prejudicado.Palavras-chave: avaliação econômica, ciclos de restrição alimentar e realimentação, crescimento, custos com alimentação Evaluation of the Growth and Feeding Costs of Pacu (Piaractus mesopotamicus) Submitted to Alternate Cycles of Feeding Restriction and RefeedingABSTRACT -The present study evaluated the effects of alternating food restriction and refeeding cycles on the growth of pacu, during the growout phase and the viability of this practice in the commercial production of the species. Juvenile fish were distributed in 3 tanks and submitted to different feeding strategies: group A (fed ad libitum daily), B (food restricted to 4 weeks and refed for 9 weeks) and C (food restricted to 6 weeks and refed for 7 weeks) totalizing 13 weeks per cycle (4 experimental cycles). At the end of each feeding cycle, 20 fish per treatment were sampled and the biometric data were registered. Values of weight, total length and condition factor (K) were submitted to ANOVA and the averages were compared by Duncan test. The results showed that the treatment C presented better results only in autumn/winter periods, promoting better growth, lower cost ration, lower food conversion and better partial net income. Otherwise, during the warmer periods of the year (spring/summer) other feeding strategies must be tested, utilizing shorter periods of food restriction. Regarding to the annual production, the treatment A showed higher biomass, although higher feeding costs. With the increase in the temperature, the growth of the fish from the other treatments was delayed.

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“…This was expected because tissue-specific FA metabolism is known to occur in fishes (Zamal & Ollevier, 1995;Budge et al, 2011). The liver is the main organ for FA metabolism in fish, thereby making a change in dietary FA more quickly apparent in this tissue.…”

Section: Comparison Of Fatty Acid Profiles Among Tissue Typesmentioning

confidence: 99%

“…In contrast, tissues that are more metabolically active like the liver generally have a more continuous turnover, reflecting changes in diet year round, and on a shorter time scale (Perga & Gerdeaux, 2005). Studies that have observed faster turnover time in liver FAs include Dave et al (1975), Regost et al (2003), Mourente & Bell (2006), and Zamal & Ollevier (1995). In addition to a faster metabolism, different tissue types have been shown to have preferential metabolism of specific FAs depending on the tissue's initial FA levels relative to the diet (Trushenski et al, 2008;Budge et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Fatty Acid Profiles Distinguish Channel Catfish from Three Reaches of the Lower Kaskaskia River and its Floodplain Lakes

Young

Whitledge

Trushenski

2014

River Research & Apps

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Running Title: Fatty acid biomarkers in riverine channel catfish KEY WORDS: fatty acids, catfish, Ictalurus punctatus, floodplain lakes, food webs 2 ABSTRACT Despite the increasing use of fatty acids (FAs) as biomarkers in aquatic food web analysis, little information is available regarding differences in FA profiles of fish among habitat types in riverfloodplain ecosystems. The objectives of this study were to 1) test whether the FA profiles of channel catfish (Ictalurus punctatus) differed among three reaches of the lower Kaskaskia River and its floodplain lakes, and 2) to compare FA profiles among muscle, liver, and adipose fin tissues collected from these fish. Profiles differed significantly among sites, especially between upper and lower river sites, and between river channel and oxbow lake sites, suggesting differences in FA availability for channel catfish occupying different habitats and river reaches in the Kaskaskia River system. Specifically, the essential FAs 18:2n-6 and 18:3n-3 increased in catfish tissues from upstream to downstream reaches, which could reflect increased floodplain connectivity and decreasing impoundment effects downstream. Ratios of n-3 to n-6 FAs were higher in fish from oxbow lakes, perhaps suggesting increased use of autochthonous production in the floodplain relative to the main river channel. Muscle and adipose fin FA profiles exhibited similar location-related trends, whereas liver FA profiles were markedly different from the other tissue types. These results suggest that adipose fin tissue samples may be a viable, less-invasive alternative to muscle tissue for analysis of FA profiles in channel catfish. Our study supports the use of tissue FA profiles in identifying habitat utilization by channel catfish, and perhaps habitatspecific energy contributions to riverine consumers. Furthermore, our work highlights floodplain habitat as a potential source of essential n-3 FA and the associated importance of maintaining river-floodplain connectivity to support aquatic food webs.

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Effect of feeding and lack of food on the growth, gross biochemical and fatty acid composition of juvenile catfish

Cited by 41 publications

References 18 publications

Growth performance, body composition and fatty acid profile of liver and muscle in tilapia, Oreochromis mossambicus (Peters, 1852) fed algal meal incorporated diets

Growth performance, body composition and fatty acid profile of liver and muscle in tilapia, Oreochromis mossambicus (Peters, 1852) fed algal meal incorporated diets

Avaliação do crescimento e do custo da alimentação do pacu (Piaractus mesopotamicus Holmberg, 1887) submetido a ciclos alternados de restrição alimentar e realimentação

Fatty Acid Profiles Distinguish Channel Catfish from Three Reaches of the Lower Kaskaskia River and its Floodplain Lakes

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