Effects of Gelam, Melaleuca cajuputi Methanolic Leaves Extract to the Behavior of Freshwater Prawn (Macrobrachium rosenbergii)

Hamdan, Nur Amanina; Wahid, Mohd Effendy Abd; Nagi, Anur Melad; Sahimi, Mohamad Badrul Moham; Zakariah, Mohd Ihwan; Hassan, Marina

doi:10.3923/pjbs.2020.418.424

Cited by 6 publications

(1 citation statement)

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“…The findings of Bakar et al (2012) suggested the ability of M. cajuputi oil from different parts of the plant to control ‘dengue’ mosquito vectors. Previous aquaculture studies on M. cajuputi had been limited to toxicity tests and behavioural responses of some aquatic species to the plant extract (Nagi et al, 2016; Hamdan et al, 2020). There is, therefore, a paucity of information about the use of the plant's parts or its extract as a feed additive to improve growth or its use in the prevention and control of aquaculture‐related pathogens.…”

Section: Introductionmentioning

confidence: 99%

Cajeput Melaleuca cajuputi extract supplementation in diets of Macrobrachium rosenbergii : Insight on the growth, immunological responses and resistance against Aeromonas hydrophila

Sahimi

Nagi

Hamdan

et al. 2022

Aquaculture Research

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Shrimp consumption has increased steadily around the world, as has the emergence of bacterial pathogens, which cause massive economic losses. The incorporation of plant extracts in aquatic animal feeds has been suggested to improve growth performance and resistance against bacterial pathogens. Therefore, the aim of this study was to evaluate the effects of Cajeput Melaleuca cajuputi leaf extract (MCLE) on the growth performance, physiological responses and resistance of Giant freshwater prawn Macrobrachium rosenbergii against Aeromonas hydrophila. The phytochemical composition of the MCLE was analysed using gas chromatography–mass spectrometry (GC‐MS). Thereafter, the MCLE was included in diets (0.0, 5.0, 10.0 and 15.0 g/kg) fed to the M. rosenbergii. The growth was observed after 45 days of the feeding trial, whereas physiological responses and clearance efficiency (%) against A. hydrophila were observed on the 60th day. 2‐Isopropyl‐10‐methylphenanthrene, phenanthrene, 1‐methyl‐7‐(1‐methyl ethyl) and 4H‐1‐Benzopyran‐4‐one, 3‐acetyl‐5, 7‐dihydroxy‐2‐methyl‐ compounds were detected as the major compounds in the MCLE. A significant improvement (p < 0.05) of growth and survival of M. rosenbergii fed with MCLE supplementation at 15.0 g/kg was observed. The total haemocyte count, hyaline cells and granular cells were also increased (p < 0.05) in the M. rosenbergii fed with diets included with MCLE. Upon challenging the primed M. rosenbergii with sub‐lethal doses of A. hydrophila, the highest clearance efficiency (73%) was achieved in the prawn‐fed 15.0 g/kg MCLE based diet (p < 0.05) after 96 h post injection. These findings indicate the potential of MCLE supplementation to improve growth, immune responses of M. rosenbergii and their resistance against A. hydrophila.

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Section: Introductionmentioning

confidence: 99%