Effects of different dietary protein and lipids levels on growth performance and digestive enzymes of the rabbitfish (Siganus rivulatus), reared in well water

al., Mohamed El-Sayed Salem et

doi:10.21608/ejabf.2021.205026

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…Penelitian serupa oleh Susanto dkk., (2022) terhadap ikan kelabau (O. melanopleurus) dengan memberikan kadar lemak menghasilkan tingginya aktivitas enzim protease seiring dengan bertambanya dosis kadar lemak pada pakan. Salem et al, (2021), juga berpendapat bahwa aktivitas enzim protease ikan baronang meningkat seiring dengan meningkatnya kadar lemak pakan dari 6% ke 12%.…”

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Pengaruh Perbedaan Dosis Minyak Ikan Dan Minyak Jagung Terhadap Aktivitas Enzim Pencernaan Dan Pertumbuhan Ikan Kelabau (Osteochilus melanopleurus)

Hutasuhut,

Susanto,

Kusdianto

2024

Akuakultur

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The purpose of this study was to examine the effects of two lipid sources dosages on the digestive enzymes activity and growth of Kelabau (Osteochilus melanopleurus). In this study, there were five treatments and three replicates in a completely randomised design (CRD). In this investigation, the following dosage ratios of fish oil and corn oil were used as treatments: A (100%:0%), B (75%: 25%), C (50%:50%), D (25%:75%), and E (0%:100%). The experimental fish had initial average length of 5–6 cm and weight of 2.8–3.6 g. Fish were reared for 45 days in plastic tanks measuring 34.3 cm x 38 cm x 31.5 cm using a recirculation system. Each tank was filled with 25 liters of water and the fish stocking density was 20 fish/tank. Fish are fed twice daily on an at-satiation basis, in the morning and the evening. Data analysis was carried out using the analysis of variance (Anova) with a confidence level of 95% and continued with the Duncan Multiple Range Test (DMRT). The findings demonstrated that the activity of digestive enzymes (amylase, lipase, and protease) was significantly (P<0.05) impacted by the differences in the content of the two lipid sources, with an increase in the percentage of corn oil causing an increase in the activity of all digestive enzymes. Conversely, neither growth nor specific growth rate were significantly affected (P>0.05) by the variation in the percentage of the two lipid sources. But in contrast to the other treatments, treatment A resulted in more growth. The reason for this could be because the ingredients were adequate to meet the fatty acid requirements for Kelabau fish growth, therefore the fatty acid addition was no longer necessary.

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Pengaruh Perbedaan Dosis Minyak Ikan Dan Minyak Jagung Terhadap Aktivitas Enzim Pencernaan Dan Pertumbuhan Ikan Kelabau (Osteochilus melanopleurus)

Hutasuhut,

Susanto,

Kusdianto

2024

Akuakultur

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Effects of protein levels of commercial diets on the growth performance and survival rate of rabbitfish (Siganus guttatus) at the nursing stage

et al. 2022

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This study aimed to determine the effect of a commercial diet's protein level on the fry-to-fingerling stage. Thirty days-old fries having the initial length and weight of 18.25 ± 0.15 mm fish-1 and 0.036 ± 0.50 g fish-1 respectively have been used in this study. Diet having three protein levels i.e. 30% (trial 1 as control), 35% (trial 2), 40% (trial 3), and 45% (trial 4), respectively, have been used to evaluate the effect of protein, and each trial has been repeated three times. During the study, stocking density was allocated to 1000 fish per composite tank with a volume of 1 m3. After 30 days of rearing, the weight of fingerlings in trial 1 reached up to 1.50 ± 0.02 g fish-1 and it was recorded as 1.52 ± 0.01g for trial 2, these two were lower than that of trials 3 and 4, where fingerling weight was reported 1.69 ± 0.01 and 1.58g fish-1 respectively and obtained the best weight compared to others. The length of fingerlings at the end of the experimental period was also changed in different trials and it was recorded 47.12; 46.92; 50.97; and 48.89 mm fish-1 for trail 1, 2, 3, and 4 respectively, among the tested combinations lower fingerlings length was recorded for trial 2 (35% CP), but it is not significantly different for trial 1 and 2 and a significant difference (P < 0.05) was reported for trail 2, 3, and 4. The survival rate of fingerlings ranged from 67.27 to 72.33%. Meanwhile, the herd distribution coefficient variation (CVW) in the treatment using 40% protein (trial 3) was the highest at 72.33% (p < 0.05). The results of the study can be concluded that the level of protein has a significant effect on the various growth parameters of fingerlings.

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Effects of protein levels in commercial diets on growth performance and survival rate of rabbitfish (Siganus guttatus) at the nursing stage

Linh

Phương

Tuấn

et al. 2022

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This study aims to determine how the levels of protein in commercial diets affect growth and survival rates of Siganus guttatus from the fry to fingerling stage. The experiment allocated 3 levels of protein in the diets: 35% (trial 1); 40% (trial 2) and 45% (trial 3) and each trial was repeated three times. The 30-day-old fry in this study had an initial length and weight of 18.25 ± 0.15 mm fish -1 and 0.036 ± 0.50 g fish -1 , respectively. In experimental setup, the stocking density was set to 1,000 fish m -3, and all the experimental fish were arranged in a composite tank with a volume of 1.0 m 3 . After 30 days of rearing, the weight of fingerlings in formula trial 1 reached 1.52 ± 0.01 g fish -1 , which was lower than that of trial 2, where fingerling weight was reported to be 1.69 ± 0.01 g fish -1 but was showed no difference from trial 3, which obtained a weight of 1.58 ± 0.08 g fish -1 . The length of fingerlings in trial 1 reached 36.92 ± 0.60 mm fish -1 , which was lower than that in trial 3 (45% CP) with lengths of 38.89 ± 0.43 mm fish -1, but not significantly different in trial 2 (40% CP) with a length of 37.97 ± 0.35 mm fish -1 . The survival rate of fingerlings ranged from 67.27 to 72.33%. Meanwhile, the herd distribution coefficient variation (CVw) in the treatment using 45% protein (trial 3) was the highest at 7.42% (p < 0.05).

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Effects of different dietary protein and lipids levels on growth performance and digestive enzymes of the rabbitfish (Siganus rivulatus), reared in well water

Cited by 3 publications

References 21 publications

Pengaruh Perbedaan Dosis Minyak Ikan Dan Minyak Jagung Terhadap Aktivitas Enzim Pencernaan Dan Pertumbuhan Ikan Kelabau (Osteochilus melanopleurus)

Pengaruh Perbedaan Dosis Minyak Ikan Dan Minyak Jagung Terhadap Aktivitas Enzim Pencernaan Dan Pertumbuhan Ikan Kelabau (Osteochilus melanopleurus)

Effects of protein levels of commercial diets on the growth performance and survival rate of rabbitfish (Siganus guttatus) at the nursing stage

Effects of protein levels in commercial diets on growth performance and survival rate of rabbitfish (Siganus guttatus) at the nursing stage

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