scholarly journals FEEDING FREQUENCY IN PACAMÃ LARVICULTURE

2016 ◽  
Vol 29 (2) ◽  
pp. 512-518 ◽  
Author(s):  
JOSÉ CLAUDIO EPAMINONDAS DOS SANTOS ◽  
MARCELO MATTOS PEDREIRA ◽  
RONALD KENNEDY LUZ
Keyword(s):  
Crude Protein ◽  
Second Phase ◽  
Feeding Frequency ◽  
Growth And Survival ◽  
Artemia Nauplii ◽  
Active Feeding ◽  
Experimental Treatments ◽  
Dry Diet ◽  
Effect Of Feeding

ABSTRACT: The feeding frequencies on pacamã Lophiosilurus alexandri larviculture were evaluated. In the first phase, 10 days of active feeding, larvae with nine days post hatching (13.5 ± 0.7 mm) were stocked at density of 10 larvae L-1 in 5-L tanks each. The experimental treatments were: F2T (feeding 8h00 and 17h00); F2M (feeding 8h00 and 12h30); F3 (feeding 8h00, 12h30 and 17h00); and F4 (feeding 8h00, 11h00, 14h00 and 17h00). During this phase Artemia nauplii were used as food. In the second phase, during 15 days, juveniles were restocked in 20-L tanks at density of 2.2 juveniles L-1, and kept the same feeding frequencies of the first phase. Commercial dry diet containing 40% crude protein was used as food. No effect of feeding frequency on growth and survival, during both phases, was observed. However, survival decreases from the first to the second phase, showing the importance of the type of food. During the L. alexandri larviculture should be recommended twice a day feeding frequency.

Effect of Feeding Frequency on Growth and Survival Rate of Clarias gariepinus Fingerlings Reared in Plastic Bowls

2014 ◽  
Vol 9 (5) ◽  
pp. 425-429 ◽  
Author(s):  
F.P. Asuwaju ◽  
V.O. Onyeche ◽  
K.E. Ogbuebunu ◽  
H.F. Moradun ◽  
E.A. Robert
Keyword(s):  
Survival Rate ◽  
Clarias Gariepinus ◽  
Feeding Frequency ◽  
Growth And Survival ◽  
Effect Of Feeding

scholarly journals Feeding frequency and growth performance of juvenile pink shrimp (Farfantepenaeus paulensis)

2015 ◽  
Vol 67 (5) ◽  
pp. 1415-1420 ◽  
Author(s):  
C. S. Pontes ◽  
L. C. Marques ◽  
E. R. Andreatta ◽  
R. S. T. Moura ◽  
G. G. Henry-Silva
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Crude Protein ◽  
Stocking Density ◽  
Negative Influence ◽  
Nutrient Leaching ◽  
Pink Shrimp ◽  
Feeding Frequency ◽  
Farfantepenaeus Paulensis ◽  
Effect Of Feeding

ABSTRACTIt is generally believed that increasing feeding frequency has immediate benefits, including reduced nutrient leaching and increased shrimp growth. In this context, the aim this work was to evaluate the effect of feeding frequency in growth performance of Farfantepenaeus paulensis. Juveniles of Farfantepenaeus paulensis were grown for 30 days in pen enclosures, at a stocking density of 5 shrimp/m2. The shrimp were fed on feeding trays at a rate of 8% of their biomass per day, with treatments of one, two, three and four times per day, with four replicates each. The results showed no differences (5% probability) in biomass gain of F. paulensis when feed was offered two, three or four times per day. However, it was observed that the once a day frequency had a negative influence on weight gain for this species of shrimp. We conclude that the supply of food with 35% crude protein twice a day is sufficient for the growth of F paulensis. Feeding frequency of three or four times can provide increased spending in the cultivation of juveniles of this species.

scholarly journals Effect of prey concentrations and feed training on production of Hoplias lacerdae juvenile

2015 ◽  
Vol 87 (2) ◽  
pp. 1125-1132 ◽  
Author(s):  
RONALD K. LUZ ◽  
MARIA CÉLIA PORTELLA
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Second Phase ◽  
Prey Concentration ◽  
Total Length ◽  
Formulated Diet ◽  
Artemia Nauplii ◽  
Active Feeding

The aim of this work was to investigate the effects of daily prey concentration during the first 15 days of active feeding of Hoplias lacerdae larvae, and the juvenile size on the feed training. In the first phase, the larvae received five Artemia nauplii concentrations (P). In the second phase, the juveniles from each treatment were trained to accept formulated diet. Superior growth was related to higher initial daily prey concentrations (900 and 1100 nauplii larvae-1). During feed training, the growth tendency was similar to that verified in the first phase. The lowest values of specific growth rate (SGR) were registered after the introduction of the semi-moist diet used in the feed training. However, the values of SGR recovered along the experiment and similar rates were found among the treatments. Survival, mortality and cannibalism were similar in the different treatments at the end of both phases. It can be concluded that: the prey concentration affects growth of H. lacerdae during the first 15 days of active feeding, and feed training can be initialized with juveniles of about 16 mm of total length.

scholarly journals Effect of feeding frequency on growth and survival in juvenile gar Atractosteus tropicus Gill, 1863, in culture conditions

2018 ◽  
Vol 46 (5) ◽  
pp. 1034-1040 ◽  
Author(s):  
Leonardo Martinez ◽  
Valeria Parra ◽  
Silvia Ramos ◽  
Crisantema Hernandez ◽  
Daniel Espinosa ◽  
...  
Keyword(s):  
Culture Conditions ◽  
Feeding Frequency ◽  
Growth And Survival ◽  
Effect Of Feeding ◽  
Atractosteus Tropicus

scholarly journals Effect of water flow rate and feed training on "pacamã" (Siluriforme: Pseudopimelodidae) juvenile production

2011 ◽  
Vol 63 (4) ◽  
pp. 973-979 ◽  
Author(s):  
R.K. Luz ◽  
J.C.E. Santos ◽  
M.M. Pedreira ◽  
E.A. Teixeira
Keyword(s):  
Growth Rate ◽  
Water Flow ◽  
Flow Rate ◽  
Specific Growth ◽  
Water Flow Rate ◽  
Flow Rates ◽  
Artemia Nauplii ◽  
Active Feeding ◽  
Dry Diet ◽  
Reduced Water

The effects of different water flow rates and feed training on the production of "pacamã" Lophiosilurus alexandri juveniles were evaluated. In the first experiment, nine day post-hatch larvae (n= 2,400) were stocked at a density of 5 larvae/L. Different water flow (F) rates were tested: F1 = 180; F2 = 600; F3 = 1,300; and F4 = 2,600mL/min. Artemia nauplii were offered as food during the first 15 days of active feeding. In the second experiment for feed training, 720 juveniles (total length of 22.2mm) were stocked at a density of 1.5 juveniles/L. A water flow rate similar to F1 was used. The use of extruded dry diet was tested, and feed training was done with and without other enhanced flavors (Artemia nauplii or Scott emulsion). The water flow rates did not influence the survival or growth of L. alexandri. Cannibalism occurred during feed training. The worst survival, specific growth rate and high mortality were found with the use of extruded dry diet, while similar values were registered with the different feed training diets used. Reduced water flow rate can be used to lower water consumption during larviculture and feed training of L. alexandri.

The effect of feeding level on growth and survival of jaguar guapote (Cichlasoma managuense) larvae fed Artemia nauplii

Aquaculture ◽  
1992 ◽  
Vol 107 (4) ◽  
pp. 347-358 ◽  
Author(s):  
J. Günther ◽  
N. Gálvez-Hidalgo ◽  
J. Ulloa-Rojas ◽  
J. Coppoolse ◽  
J. Verreth
Keyword(s):  
Growth And Survival ◽  
Feeding Level ◽  
Artemia Nauplii ◽  
Effect Of Feeding
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