Agroindustrial byproducts in diets for Nile tilapia juveniles

Carvalho, João Sérgio Oliveira; Azevedo, Rafael Vieira de; Ramos, Ana Paula de Souza; Braga, Luís Gustavo Tavares

doi:10.1590/s1516-35982012000300002

Cited by 13 publications

(6 citation statements)

References 16 publications

(18 reference statements)

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“…A common difficulty, observed when new additives or alternative food sources are used in fish diets, is acceptability, which is related to palatability (AZEVEDO; TONINI; BRAGA, 2013;CARVALHO et al, 2012;RODRIGUEZ;CARMONA, 1996;SENA et al, 2012). The similarity in values for total feed consumption suggests that including the additives under evaluation did not alter the palatability of the feed.…”

Section: Resultsmentioning

confidence: 99%

Economic evaluation of prebiotics, probiotics and symbiotics in juvenile Nile tilapia

Azevedo¹,

Filho²,

Cardoso³

et al. 2015

Rev. Ciênc. Agron.

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-This study aimed to evaluate economically the inclusion of prebiotics, probiotics and symbiotics in diets of Nile tilapia (4.07 ± 0.30 g), at two stocking densities (0.6 and 1.2 kg m -3 ). A total of 288 fish were distributed over 32 tanks (40 L) in a completely randomised design, in a 2 x 4 factorial (stocking density x additives), with four replications, over six weeks. The following were evaluated: total feed consumption (FC), final biomass (FB), relative gain in biomass (RGB), apparent feed conversion (AFC), survival rate (SUR), average cost of feed per kg of live weight gain (ACF), total cost of feed (TCF), total cost of production (TCP), gross income (GI), operating profit (OP) and economic efficiency index (EEI). No effect was seen on the evaluated parameters from the interaction (p>0.05) between stocking density and inclusion of the feed additives. No influence was observed (p>0.05) on SUR from the stocking density, although this significantly influenced the parameters FB, FC, RGB, AFC, ACF, TCF, TCP, GI and OP. There was no significant influence from the inclusion of prebiotics, probiotics and symbiotics on FC, SUR and TCF, however there was an influence (p<0.05) on the parameters FB, RGB, AFC, ACF, TCP, GI and OP. The control diet at the higher density displayed the worst EEI. The best EEI was obtained by fish at the lower density which received feed with added probiotics and symbiotics. The best indices of economic and zootechnical performance obtained demonstrate the economic viability of including prebiotics, probiotics and symbiotics in the diets of Nile tilapia.

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Section: Resultsmentioning

confidence: 99%

Economic evaluation of prebiotics, probiotics and symbiotics in juvenile Nile tilapia

Azevedo¹,

Filho²,

Cardoso³

et al. 2015

Rev. Ciênc. Agron.

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“…In this study, there was no influence of pre-, pro-and synbiotic supplementation on the DFI. A common difficulty observed when new supplements or alternative food sources are used in fish feed is the acceptability, which is related to palatability (Carvalho, Azevedo, Ramos, & Braga, 2012). The similarity in feed intake values in this study suggests that the supplementation of the evaluated supplements did not alter the palatability of feed.…”

Section: Resultsmentioning

confidence: 52%

Dietary mannan oligosaccharide and Bacillus subtilis in diets for Nile tilapia (Oreochromis niloticus)

Azevedo

Filho

Pereira

et al. 2016

Acta Sci. Anim. Sci.

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A six week study was conducted to investigate the supplementation of prebiotic (Mannan oligosaccharide-MOS, from yeast Saccharomyces cerevisiae), probiotic (Bacillus subtilis-BS, C-3102 strain) and their combination in diets for Nile tilapia. 192 fishes (4.03 ± 0.28 g) were distributed into 16 tanks (40-L), in a completely randomized design (n=4). The following treatments were evaluated: control; prebiotic-2 g MOS kg-1 ; probiotic-2 g BS kg-1 and synbiotic-1 g MOS kg-1 plus 1 g BS kg-1. Fishes fed diets pre-, pro-and synbiotic supplemented performed better in average daily gain, feed conversion rate, specific growth rate, protein efficiency ratio, carcass yield, total and standard length and body height than those maintained on control diets. The probiotic supplementation resulted in higher villus height and intestinal perimeter ratio than the control diet while the pre-and synbiotic supplementation in diets resulted in higher intestinal perimeter ratio. Carcass protein and ether extract were, respectively, higher and lower in fish fed synbiotic diets than other fish. The results of this study indicated that the mannan oligosaccharide and Bacillus subtilis supplementation, isolated or combined (synbiotic), could improve growth, body index, intestine morphometry and carcass composition in Nile tilapia.

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“…Therefore dietary CBM supplementation resulted in an improvement of economic efficiency. In contrast, Carvalho, et al [ 24 ] reported an increase in the relative feed costs in diets supplemented with the cocoa meal compared to the control diet that can be attributed to the cost difference per kg of the diet so the economic analysis depends on the animal performance indexes.…”

Section: Discussionmentioning

confidence: 99%

“…However, the flavonoids in cocoa have been shown to have promising anti-cancer properties in test-tube and animal studies [ 23 ]. No mortalities were reported from using cocoa meal in Nile tilapia diets up to 150 g kg −1 [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Growth, Health, Reproductive Performance, and Gonadal Histology of Broodstock Fantail Goldfish (Carassius auratus, L.) by Dietary Cacao Bean Meal

Al-Khalaifah

Amer

AlSadek

et al. 2020

Animals

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The potential effects of cacao bean meal, Theobroma cacao L., (CBM) on the growth, health status, blood biochemical parameters, antioxidant, immune status, physiological parameters, female reproductive performance, and gonadal histological features of fantail goldfish (Carassius auratus, L.) were evaluated using a complete randomized block design with sex as a block. The trial lasted for 60 days. A total of 54 healthy fantail goldfish (36 broodstock females and 18 broodstock males) were randomly allocated into three treatments with supplementation of three levels of cocoa powder 0, 5, and 10 g kg−1 diet, CBM0, CBM5, and CBM10, respectively, with the sex ratio being four females:two males per replicate. The body weight gain and feed conversion ratio of males were increased in the CBM10 treatment (p < 0.05). The CBM10 diet improved relative feed costs (p < 0.05). Females fed on the CBM10 diet had an increase in the serum level of total protein (p = 0.001). Females fed on a diet supplemented with CBM5 showed a decrease in the serum level of triglyceride compared to females fed on CBM0 and CBM10 diets (p = 0.03). CBM10 diet increased the serum superoxide dismutase (SOD) activity of fish compared to CBM0 and CBM5 diets (p = 0.004). Serum levels of testosterone and estradiol were significantly increased in males fed on the CBM10 diet. The female reproductive performance was improved by CBM supplementation (p < 0.05). Ovarian histology exhibited increased granulation and follicle numbers after dietary CBM supplementation compared to the control treatment. Therefore, cacao bean meal can be used as a feed supplement in the diets of fantail goldfish for improving the growth, health status, and female reproductive performance, economic efficiency, and gonadal histological structure.

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Agroindustrial byproducts in diets for Nile tilapia juveniles

Cited by 13 publications

References 16 publications

Economic evaluation of prebiotics, probiotics and symbiotics in juvenile Nile tilapia

Economic evaluation of prebiotics, probiotics and symbiotics in juvenile Nile tilapia

<b>Dietary mannan oligosaccharide and <i>Bacillus subtilis</i> in diets for Nile tilapia (<i>Oreochromis niloticus</i>)

Optimizing the Growth, Health, Reproductive Performance, and Gonadal Histology of Broodstock Fantail Goldfish (Carassius auratus, L.) by Dietary Cacao Bean Meal

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