The optimal period for changing the feeding regime of mono-sex male Nile tilapia (Oreochromis niloticus)

Thongprajukaew, Karun; Rodjaroen, Somrak

doi:10.1016/j.aqrep.2020.100392

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…There are several factors impacting lipid enzyme secretions including. feeding habits, feed preferences, formulation of diets and ANF´s (Thongprajukaew and Rodjaroen, 2020) In present study, fiber could have reduced the activity of lipase in experimental fish (Mirghaed et al 2018). This can be explained by the interference of fiber in not only the hydrolysis of lipids but also in the absorption of fatty acids (Dawood et al 2020b).…”

Section: Discussionmentioning

confidence: 51%

Graded levels of dietary pink oyster mushroom, Pleurotus djamor meal, affects growth, feed efficiency, lipase activity and fiber content in final whole body of Nile tilapia fingerlings, Oreochromis niloticus

Sosa¹,

Cappello-García²,

Martínez‐García³

et al. 2023

Preprint

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Expansion of aquaculture industry is evidently accompanied by an urgent necessity of aquaculture feed production. Traditionally, fish meal (FM) and soybean meal (SBM) have been the primary protein source ingredient in aquaculture diets. However, over exploitation of these commodities has conducted to their unsustainability. Hence, research of unconventional protein alternatives has emerged. Mushroom meal is one of them. To date, mushroom meals have been investigated when supplemented in low levels in aquaculture diets. Furthermore, effects of diets supplemented with mushroom meals have assessed different parameters such as, haematology, immunity, anti–bacterial & anti–oxidant activities, and heat stress. Present study, is aimed to study the effects of graded levels of dietary pink oyster mushroom (Pleurotus djamor) meal (POMM), in growth, feed efficiency, protein utilization, digestive enzymes activities and whole body proximate composition of Nile tilapia (Oreochromis niloticus) fingerlings. Experimental design included a control diet (POMM0) formulated with soybean meal, as main protein source, and four diets designed with increasing levels of POMM: 25%(POMM25); 50%(POMM50); 75%(POMM75); and 100%(POMM100). Experimental diets and final whole body were submitted to a proximate composition analysis. Growth, feed efficiency, protein utilization, and digestive enzyme activities were assessed. Compared to POMM0 and POMM25, weight gain (WG), and specific growth rate (SGR), significantly (P< 0.05) decreased in fish fed POMM50, POMM75 and POMM100%. Feed conversion ratio (FCR), protein efficiency ratio (PER) and survival rate (SR) were not significantly affected by experimental diets. Daily feed intake (DFI), and daily protein intake (DPI), decreased as POMM increased in diets. Compared to POMM0 experimental group, condition factor (K), showed a significantly higher value in fish fed POMM50, and POMM100 experimental diets. Crude fiber of final whole body of POMM100 resulted significantly higher (P< 0.05) compared to that shown in fish fed the rest of experimental diets. Acid and alkaline proteases, trypsin, chymotrypsin, leucine aminopeptidase and amylase of Nile tilapia fingerlings, were not significantly affected by experimental diets. Compared to fish fed POMM0 and POMM25 diets, experimental fish fed POMM50, POMM75, and POMM100 showed a reduction of lipase activity. In conclusion, a POMM level higher than 25% affects growth and lipase activity. While a POMM level higher than 50% affects fiber content in whole body of final fish.

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Section: Discussionmentioning

confidence: 51%

Graded levels of dietary pink oyster mushroom, Pleurotus djamor meal, affects growth, feed efficiency, lipase activity and fiber content in final whole body of Nile tilapia fingerlings, Oreochromis niloticus

Sosa¹,

Cappello-García²,

Martínez‐García³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…In this context, the use of food strategies of finishing diets, mixed feeding, and feed deprivation has been shown as a suitable strategy to increase protein efficiency in aquaculture (Ali et al, 2005; De Silva, 1985; Rodjaroen et al, 2020). These strategies can cause significant changes in the activity of digestive enzymes and digestibility to obtain useful nutrients to support growth, food utilization, and other physiological processes (Thongprajukaew & Rodjaroen, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effects of circadian variation of dietary protein sources on growth performance, carcass composition and intestinal enzyme activity in beluga, Huso huso

Najafi,

Ouraji,

Yeganeh

et al. 2024

J World Aquaculture Soc

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The main cost in aquaculture production is feed, so management practices and feeding strategies aim to optimize both feed intake and efficiency. This study aimed to evaluate the growth performance of beluga, Huso huso, affected by periodic changes in dietary protein sources and hence identify possible innovative feeding strategies toward more efficient use of dietary protein. This study was designed with two experimental diets, namely fish meal (diet A) and plant protein blend (diet B) (protein 40%, fat 16%), which were used in different food schedules for feeding beluga (initial weight 82.08 ± 4.1 g) during 8 weeks. The experimental treatments included: continuously feeding a fish meal diet (A); continuously feeding a plant protein diet (B); alternating between diet A in the morning and diet B in the afternoon (A am/B pm); alternating between diet B in the morning and diet A in the afternoon (B am/A pm); and alternating between diet A for one day and diet B for one day (1A/1B). At the end of the eight‐week trial, superior growth performance and feed utilization were respectively observed in fish receiving A, Bam/Apm, and Aam/Bpm diets compared with the remaining treatments. The specific activity of trypsin and chymotrypsin was significantly high in fish fed Aam/Bpm and Bam/Apm. Feeding the fish‐meal‐based diet (A) continuously, led to decreased protein and increased fat deposition in the carcass. Among the mixed feeding schedules, the highest cost‐saving was recorded with the Aam/Bpm and Bam/Apm schedules. Based on economic analysis, applying Aam/Bpm and Bam/Apm schedules led to the reduced cost of beluga production compared with the other treatments. Therefore, the optimal feeding schedules for beluga are Aam/Bpm and Bam/Apm, which should be used as a practical feeding guideline for H. huso production.

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A Review on the Production and Culture Techniques of Monosex Tilapia

Bardhan¹,

Sau²,

Khatua³

et al. 2021

Int.J.Curr.Microbiol.App.Sci

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The optimal period for changing the feeding regime of mono-sex male Nile tilapia (Oreochromis niloticus)

Cited by 4 publications

References 21 publications

Graded levels of dietary pink oyster mushroom, Pleurotus djamor meal, affects growth, feed efficiency, lipase activity and fiber content in final whole body of Nile tilapia fingerlings, Oreochromis niloticus

Graded levels of dietary pink oyster mushroom, Pleurotus djamor meal, affects growth, feed efficiency, lipase activity and fiber content in final whole body of Nile tilapia fingerlings, Oreochromis niloticus

Effects of circadian variation of dietary protein sources on growth performance, carcass composition and intestinal enzyme activity in beluga, Huso huso

A Review on the Production and Culture Techniques of Monosex Tilapia

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