Digestibility of diets microsupplemented with whole Chlorella vulgaris Beijerinck 1890 in hybrid red tilapia (Oreochromis mossambicus O. niloticus)

Muhammad Ahmad Talba, . and Mohamed Shariff, . and Yong Meng Goh, . and Fatimah Md. Yusoff, . Digestibility of diets microsupplemented with whole Chlorella vulgaris Beijerinck 1890 in hybrid red tilapia (Oreochromis mossambicus O. niloticus). pp. 187-191. ISSN 0116-6514

Microalgae are rich in carotenoids immunomodulating metabolites and other nutrients suitable as fish feed. Chlorella sp. has all the essential amino acids and its micro-supplementation enhances fish performance. While there are several studies on the role of Chlorella sp. little information is known about its digestibility at micro-supplementation levels. The present study was aimed at investigating digestibility of diets micro-supplemented with whole Chlorella vulgaris Beijerinck 1890 at different inclusion levels in hybrid red tilapia (Oreochromis mossambicus O. niloticus). The experiment was carried out using whole C. vulgaris to determine the nutrient apparent digestibility coefficient (ADC) of the diet. A total of 84 hybrid red tilapia (105 7 g) were assigned randomly into four groups with 21 fish each for a 21-day feeding trial. The treatment groups were; control (basal diet only) test diet I II and III (basal diet 1 0.03 and 5 C. vulgaris w/w respectively). The result showed that micro-supplementation of C. vulgaris at all the inclusion levels significantly improved the ADC values for dry matter and protein which was also associated with an increase in the micro-supplementation level. Thus the result of the present study showed the ability of hybrid red tilapia to digest diets micro-supplemented with whole C. vulgaris at different inclusion levels.

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Abstract

Microalgae are rich in carotenoids immunomodulating metabolites and other nutrients suitable as fish feed. Chlorella sp. has all the essential amino acids and its micro-supplementation enhances fish performance. While there are several studies on the role of Chlorella sp. little information is known about its digestibility at micro-supplementation levels. The present study was aimed at investigating digestibility of diets micro-supplemented with whole Chlorella vulgaris Beijerinck 1890 at different inclusion levels in hybrid red tilapia (Oreochromis mossambicus O. niloticus). The experiment was carried out using whole C. vulgaris to determine the nutrient apparent digestibility coefficient (ADC) of the diet. A total of 84 hybrid red tilapia (105 7 g) were assigned randomly into four groups with 21 fish each for a 21-day feeding trial. The treatment groups were; control (basal diet only) test diet I II and III (basal diet 1 0.03 and 5 C. vulgaris w/w respectively). The result showed that micro-supplementation of C. vulgaris at all the inclusion levels significantly improved the ADC values for dry matter and protein which was also associated with an increase in the micro-supplementation level. Thus the result of the present study showed the ability of hybrid red tilapia to digest diets micro-supplemented with whole C. vulgaris at different inclusion levels.

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Item Type:	Article
AGROVOC Term:	Tilapia
AGROVOC Term:	Hybrids
AGROVOC Term:	Oreochromis mossambicus
AGROVOC Term:	Oreochromis niloticus
AGROVOC Term:	Fish feeding
AGROVOC Term:	Feed supplements
AGROVOC Term:	Diet
AGROVOC Term:	Chlorella vulgaris
AGROVOC Term:	Amino acids
AGROVOC Term:	Digestibility
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/9135

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