Optimum level of dietary protein and lipid for hybrid grouper brown-marbled grouper (Epinephelus fuscoguttatus) X giant grouper (E. lanceolatus)

Norfazreena Mohd Faudzi, . and Yong Annita Seok Kian, . and Senoo Shigeharu, . and Rossita Shapawi, . Optimum level of dietary protein and lipid for hybrid grouper brown-marbled grouper (Epinephelus fuscoguttatus) X giant grouper (E. lanceolatus). pp. 1-15. ISSN 2672-7226

A12-weeks experiment was conducted to determine the optimum level of dietary protein and lipid for hybrid grouper brown-marbled grouper (Epinephelus fuscoguttatus) x giant grouper (E. lanceolatus). The hybrid grouper juveniles (body weight: 6.6 0.1 g) were fed twice a day with 12 experimental feeds containing different levels of protein (45 50 and 55) and lipid (8 12 16 and 20). Results showed that the fish fed with a different combination of protein and lipid levels did not significantly (p 0.05) affect the growth performances. An increasing trend in growth was observed when protein and lipid levels increased from 45 to 55 and 8 to 16 respectively. Protein sparing effects by lipid can be observed when lipid increased to 16 at any protein levels; however the growth of fish was decreased at 20 of lipid. The lipid retention efficiency body lipid VSI ISI and IPF were increased correspondingly with the lipid level from 8 to 20. No significant effect (p 0.05) was observed on the ADC of protein and lipid. Based on the regression analysis the present study suggests that 50 of dietary protein and 16.5 of dietary lipid are the optimum requirements to be provided in formulated feed for the hybrid grouper.

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Abstract

A12-weeks experiment was conducted to determine the optimum level of dietary protein and lipid for hybrid grouper brown-marbled grouper (Epinephelus fuscoguttatus) x giant grouper (E. lanceolatus). The hybrid grouper juveniles (body weight: 6.6 0.1 g) were fed twice a day with 12 experimental feeds containing different levels of protein (45 50 and 55) and lipid (8 12 16 and 20). Results showed that the fish fed with a different combination of protein and lipid levels did not significantly (p 0.05) affect the growth performances. An increasing trend in growth was observed when protein and lipid levels increased from 45 to 55 and 8 to 16 respectively. Protein sparing effects by lipid can be observed when lipid increased to 16 at any protein levels; however the growth of fish was decreased at 20 of lipid. The lipid retention efficiency body lipid VSI ISI and IPF were increased correspondingly with the lipid level from 8 to 20. No significant effect (p 0.05) was observed on the ADC of protein and lipid. Based on the regression analysis the present study suggests that 50 of dietary protein and 16.5 of dietary lipid are the optimum requirements to be provided in formulated feed for the hybrid grouper.

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Item Type:	Article
AGROVOC Term:	Epinephelus
AGROVOC Term:	Epinephelus lanceolatus
AGROVOC Term:	Groupers
AGROVOC Term:	Hybrids
AGROVOC Term:	Animal feeding
AGROVOC Term:	Proteins
AGROVOC Term:	Lipids
AGROVOC Term:	Feed formulations
AGROVOC Term:	Proximate composition
AGROVOC Term:	Digestibility
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8689

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