Growth and gastrointestinal indices in Nile tilapia fed with different diets

Moreira, Ricardo Lafaiete; Silveira, Lucas Pinheiro; Teixeira, Erivânia Gomes; Moreira, Antônio Glaydson Lima; Moura, Plácido Soares de; Farias, Wladimir Ronald Lobo

doi:10.4025/actascianimsci.v34i3.13327

Cited by 6 publications

(5 citation statements)

References 23 publications

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“…The increase in EI in the BF system can be directly related to the consumption of substrates, which results in an increase in the surface of the intestine, enabling greater contact and, consequently, greater absorption of nutrients (Moreira et al, 2012). These same authors observed an increase in this parameter when fish were fed diets containing natural feed, compared to diets based on feed.…”

Section: Discussionmentioning

confidence: 89%

Lipid profile and metabolic parameters of tilapia in the finishing phase in earth ponds or using biofloc technology

Durigon,

Uczay,

Peixoto

et al. 2023

Acta Sci. Biol. Sci.

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Tilapia is a species with great growth potential. Its production comes from a semi-intensive system, such as earthen ponds (EP). Recently, biofloc technology (BFT) appears as an option to intensify fish production. The objective of this work was to compare the organosomatic indices, biochemical parameters, and chemical composition of tilapia reared in EP and BFT. Fish were grown for 150 days, with an initial weight of ≅ 2 g and a final weight of ≅ 780 g. Thereafter, tissues and organs were collected to determine organosomatic indices and analyze biochemical parameters, fatty acid, and proximate composition. The carcass yield was higher for tilapia reared in EP than BFT. The production system did not affect the fish fillet yield. The other organosomatic parameters were higher for tilapia reared in BFT. Tilapia reared in EP showed higher content of crude protein and lipids in the fillet. In both production systems, there was no difference in the body lipid profile. Fish in BFT showed a higher concentration of glucose and ammonia in the muscle and amino acids in the liver. Fish reared in EP showed a higher concentration of lactate in the liver compared to those in BFT. In conclusion, the production system alters the metabolism of fish. The biofloc has a considerable amount of fatty acids, which can be considered in the formulation of diets for tilapia in this system.

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Section: Discussionmentioning

confidence: 89%

Lipid profile and metabolic parameters of tilapia in the finishing phase in earth ponds or using biofloc technology

Durigon,

Uczay,

Peixoto

et al. 2023

Acta Sci. Biol. Sci.

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“…In the fertilized treatment, two additional organic fertilizer applications (18 kg of organic fertilizer each) were performed, one in late October and the other in early December. Fertilization occurred only in the initial months of production, as fish consume more plankton in the early stages, as reported by Moreira et al (2012). According to Mo et al (2014), fish feces and the remains of uneaten feed help to fertilize the ponds.…”

Section: Study Area and Managementmentioning

confidence: 89%

Effect of Poultry Litter as an Organic Fertilizer, in Water Quality, Parasitic Abundance, and Growth Nile Tilapia

et al. 2021

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Nile tilapia feed on plankton in natural environments. This food source can be increased in ponds through fertilization and can reduce feed expenses or improve fish performance when used as supplementary food. Organic fertilization is an alternative to commercial fertilization; however, its use increases concerns regarding water quality and sanitary aspects. This study aimed to evaluate the effects of the use of poultry litter as organic fertilizer on the physical and chemical parameters of water, gill ectoparasite metazoan abundance, and growth of Nile tilapia (Oreochromis niloticus) during the culture cycle lasting 240 days. Four earthen ponds, two fertilized with poultry litter and two non-fertilized ponds, as fertilized and non-fertilized treatments, respectively, were used. Stocking density was 3 fish per m2 with an average initial weight of 0.64 ± 0.15 g. The mean water quality values and the growth performance parameters of Nile tilapia did not show significant differences between the two treatments. The gill parasites found in the fish belonged to the class Monogenea, comprising two genera, Cichlidogyrus and Scutogyrus, with significant differences between treatments. The non-fertilized treatment showed a high abundance of parasites throughout the culture cycle months, with peak abundance in the months with low concentrations of dissolved oxygen in the water.

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“…The total rearing time for the larvae was 14 days at salinities of 5-7 ppt. In Nile tilapia fish fry provided with artificial feed, phytoplankton, and zooplankton, at least 13% of the content in their stomachs was zooplankton [12], ranging from 8-13% [13].…”

Section: Discussionmentioning

confidence: 99%

“…Rotifer feeding over 4 days at a salinity of 5-7 ppt resulted in a survival rate of 92.4% within 4 days, while for 2 days it was 81.75%, compared to 81.0% for the control. [12] reared Nile tilapia O. niloticus fish larvae from the larval stage for 100 days and obtained survival rates of approximately 25% (with natural feed) and 80-90% (with artificial feed and a combination of natural and artificial feed). [14] provided rotifers to mud crab zoea Scylla olivacea larvae three times a day, resulting in survival rates of 58% on the third day and 22% on the fourth day, which were higher than those from feeding once or twice.…”

Section: Discussionmentioning

confidence: 99%

Utilization of rotifers as natural feed in the rearing of saline nile tilapia (Oreochromis niloticus) larvae

Soleh,

Naryaningsih,

Nur

et al. 2023

BIO Web Conf.

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After the yolk sac of fish larvae is absorbed, they will utilize external food sources such as natural phytoplankton and zooplankton. Specifically, one of the zooplankton species used is the small-sized rotifer Brachionus sp., which matches the mouth opening of the larvae. The purpose of the experiment was to examine the effects of providing live rotifer in combination with artificial feed on the survival rate and growth of Nile tilapia (Oreochromis niloticus) larvae in high salinity conditions. The Nile tilapia larvae used in the experiment were the offspring of Red Nifi strain breeders raised in freshwater and still containing yolk sacs. Feeding commenced after the yolk sacs were absorbed, and the salinity was gradually increased to 25-30 ppt. The larvae were fed with rotifers for seven days (P-1), 14 days (P-2), and then continued with another type of artificial feed. There was also a control group that only received artificial feed without rotifers. The stocking density of the fish larvae was 25 individuals per liter, and the total water volume used was 15 liters. The rotifer dose was maintained at 10-20 individuals per milliliter of water per day during the 4-week rearing period. The results showed that providing rotifers in water salinity between 10-15 ppt during the first seven days resulted in a survival rate of > 80%, whereas the control group achieved > 90% survival. However, the survival rate of the larvae started to decline from the second seven-day period with the increase in salinity between 15-25 ppt, and it continued to decrease to < 60% until the fourth week for all treatments.

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Growth and gastrointestinal indices in Nile tilapia fed with different diets

Cited by 6 publications

References 23 publications

Lipid profile and metabolic parameters of tilapia in the finishing phase in earth ponds or using biofloc technology

Lipid profile and metabolic parameters of tilapia in the finishing phase in earth ponds or using biofloc technology

Effect of Poultry Litter as an Organic Fertilizer, in Water Quality, Parasitic Abundance, and Growth Nile Tilapia

Utilization of rotifers as natural feed in the rearing of saline nile tilapia (Oreochromis niloticus) larvae

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