Agricultural and Biological Sciences, Aquatic Science, Animal Science and Zoology, General Agricultural and Biological Sciences
29
Scopus Publications
507
Scholar Citations
10
Scholar h-index
10
Scholar i10-index
Scopus Publications
Impact of defatted black soldier fly larvae meal on growth, feed utilisation, and fillet quality in freshwater-reared Asian seabass Jia-Yi Tan, Chaiw-Yee Teoh Journal of Insects as Food and Feed, 2026 Abstract Asian seabass ( Lates calcarifer ) is a commercially important fish in Asian countries. The feed formulation for Asian seabass relies significantly on the utilisation of fish meal (FM) as the primary protein source. However, given the challenges posed by its limited availability and elevated cost, there is a need to explore potential alternatives to FM. This study aims to evaluate the possibilities of using defatted black soldier fly larvae meal (DBSFLM) as FM alternative in the diet of Asian seabass reared in freshwater. Three isonitrogenous (45%), isolipidic (13%), and isoenergetic (400 kcal/100 g) experimental diets were prepared using graded replacement levels of FM by DBSFLM: 0% (control), 20% (D20), and 40% (D40). Experimental diets were fed to triplicate groups of 15 Asian seabass fingerlings with an initial body weight of 9.44 ± 0.02 g twice per day until satiation. After a 7-week feeding trial, fish fed the control diet showed significantly better growth performance and feed utilisation ( ) compared to those fed with D20 and D40, indicating reduced efficiency in utilising DBSFLM. However, no significant differences ( ) were observed in condition factor, biological indices, haematocrit levels, survival rate, or fillet yield. Meanwhile, Asian seabass fed with the D20 exhibited increased levels of metallic and muddy flavour in the fillet, contributing to a distinctive taste profile. Overall, replacing dietary FM with DBSFLM at levels of 20% and 40% resulted in compromised growth performance, feed utilisation, and fillet sensory qualities in Asian seabass raised in freshwater.
Measurements of water quality and growth metrics in freshwater aquaculture: Dataset and technical challenges Qi-Song Colin Kiu, Chaiw-Yee Teoh, Ai-Lin Ooi, Wey-Lim Wong, Yik-Hou Chong IEEE Instrumentation and Measurement Magazine, 2026 In aquaculture operation, it is essential to continuously monitor and maintain physical and chemical water parameters within optimal ranges while also measuring the weight and length of cultured species at defined experimental points. Although both water quality monitoring and growth measurement still rely predominantly on manual methods, their accuracy remains critical for successful cultivation and meaningful data analysis. In this paper, the ranges of water quality parameters, as well as weight and length measurements, are presented based on four aquaculture research experiments: Exp. I, involving the culture of red hybrid tilapia and native fish species in aquaponics and recirculating aquaculture systems (RAS); Exp. II and III involve culturing red hybrid tilapia and bagrid catfish, respectively, in flow-through systems; and Exp. IV, involving the culture of giant freshwater prawn in biofloc and RAS. The challenges and recommendations associated with manual measurements in these studies are subsequently discussed.
Sialic acid, nutritional and fatty acid compositions of three species of freshwater fish eggs Wai Yeng Tham, Mei Kying Ong, Chaiw Yee Teoh Bio Web of Conferences, 2025 This research aimed to determine the nutritional, sialic acid (SA) and fatty acid compositions of red hybrid tilapia ( Oreochromis sp.), snakehead murrel ( Channa striata ), and sutchi catfish ( Pangasius hypophthalmus ) fish eggs. Eggs of P. hypophthalmus had the highest moisture (60.58%), ash (1.68%) and protein (25.19%) content while C. striata had the lowest moisture (48.58%), ash (0.81%) and protein (13.08%) content. Lipid content of C. striata fish eggs (35.94%) was significantly higher (p < 0.05) than Oreochromis sp. (14.23%) and Pangasius hypophthalmus (9.91%) fish eggs. Free sialic acid content of Oreochromis sp. (0.57 μg/mg) was significantly higher than Pangasius hypophthalmus (0.09 μg/mg) and Channa striata (0.11 μg/mg) fish eggs. Highest amount of saturated fatty acid was found in Pangasius hypophthalmus (44.04%) fish eggs, followed by Oreochromis sp. (37.69%) and Channa striata (24.40%) fish eggs. Monounsaturated fatty acid composition of Channa striata (45.53%) fish eggs was significantly higher than Oreochromis sp. (26.97%) and Pangasius hypophthalmus (23.33%) fish eggs. There was no significant difference (p > 0.05) of polyunsaturated fatty acid composition among three selected freshwater fish eggs. This study revealed that all selected freshwater fish eggs can be a source of major nutrients, SA and essential fatty acids.
Growth and Nutritional Quality in Giant Freshwater Prawn, Macrobrachium rosenbergii through Live Mealworm Feeding with Probiotic Enrichment Sashwinie Murali, Yee Teoh Chaiw, Lim Wong Wey Sains Malaysiana, 2025 To address the gap in sustainable aquaculture, a 17-week feeding trial was conducted to evaluate locally-sourced mealworms, with and without Bacillus subtilis probiotic enrichment, as an alternative feed material for giant freshwater prawn (Macrobrachium rosenbergii), assessing their effects on growth, feed utilization, and nutritional composition. Five experimental diets were tested: commercial prawn feed (CPF), CPF combined with live mealworm (CPF+MW), mealworm alone (MW), probiotic-enriched mealworm (PMW), and CPF combined with probiotic-enriched mealworm (CPF+PMW). Triplicate groups of 20 prawns were randomly assigned to each diet. Weight gain among the groups ranged from 421.88% to 529.34%, with no significant differences observed (P > 0.05). Prawns fed CPF exhibited a significantly higher feed conversion ratio (FCR) (3.72 ± 0.32, P < 0.05), indicating less efficient feed utilization and leading to increased production costs. While CPF (45.01%) and MW (52.44%) diets differed significantly in crude protein content, the prawns fed CPF (59.24%) and MW (60.78%) showed similar crude protein levels. These results suggest that live mealworms are a viable alternative to commercial feed for GFP, maintaining growth performance and nutritional quality. Furthermore, combining live mealworms with commercial feed proves to be an effective feeding strategy, though enrichment with B. subtilis did not provide additional benefits for prawn growth or FCR.
Functional Red Palm Oil as a Fish Oil Alternative on Growth, Feed Utilization, and Coloration in Giant Freshwater Prawn Macrobrachium rosenbergii Chaiw-Yee Teoh, Xiu Yang Johnson Wong, Pit Sze Liew Sains Malaysiana, 2025 Functional red palm oil (FRPO), rich in bioactive compounds, enhances digestion, metabolism, immune function, and coloration in aquatic species. Given Malaysia’s robust palm oil industry, investigating FRPO as a sustainable, locally-sourced lipid alternative for aquaculture industry is essential. A 32-day feeding trial was conducted to evaluate the effects of substituting dietary fish oil (FO) with FRPO on growth performance, survival rate, coloration and feed utilization of giant freshwater prawn (GFP), Macrobrachium rosenbergii. Three experimental diets were formulated to contain different lipid sources: Diet 1 (100% of FO), Diet 2 (50% FO + 50% FRPO), and Diet 3 (100% of FRPO). A total of 180 prawns with average weight of 0.35 g were assigned into nine tanks and fed twice daily to satiation. Results showed that prawns fed with Diet 2 had significantly (p < 0.05) better feed conversion ratio, specific growth rate, percentage weight gain and final weight than other two groups. However, no significant (p > 0.05) difference was observed in the survival rate of the experimental prawns. All prawns showed significant differences in lightness (L*), while those fed Diet 3 showing significantly higher redness (a*) compared to the other groups. It is evident that a 50% inclusion of FRPO can enhance pellet palatability, significantly boost growth performance, feed utilization, and coloration in GFP. These findings suggest that FRPO is a viable, sustainable alternative to FO, advancing the development of aquafeeds with local ingredients.
A Preliminary Study on the Current Status and Development of Commercial Aquaponics Farms in Malaysia Kiu Qi Song Colin, Teoh Chaiw Yee adn Ai Lin Ooi ASM Science Journal, 2025 A survey was conducted to collect information about commercial aquaponics farms in Malaysia to provide insight into their operating status and to promote aquaculture sustainability. A total of 13 aquaponics farms from Selangor (9), Pulau Pinang (2) and Sarawak (2) participated in this survey. Farm general information, crop, fish and aquaponics system, financial input and output, and farm challenges of each aquaponics farm were summarised. Aquaponics farms are mainly located in urban areas where 84.6% of the farms were intermediate farms (>1076 ft –≤5382 ft ) and large farms 222(>5382 ft ). The most produced crops and fish by these aquaponics farms were leafy vegetables and tilapia respectively. Aquaponics farmers spent an average of RM 75.44/ft2 on the initial capital while RM 16.44/ft2 on the annual expenses. On average, crop production value was threefold higher than fish production value produced by these aquaponics farms. Plant pests and diseases, pH instability and nutrient deficiencies in the aquaponics system as well as financial issues were some of the main challenges faced by the aquaponics farmers.
IMPACT OF LIVE MEALWORM FEEDING AND PROBIOTIC ENRICHMENT ON THE HEALTH PERFORMANCE AND FATTY ACID COMPOSITION OF GIANT FRESHWATER PRAWN, Macrobrachium rosenbergii , SASHWINIE MURALI1, CHAIW YEE TEOH, , WEY-LIM WONG, and Journal of Sustainability Science and Management, 2025 The aquaculture industry is beset by rising feed costs and supply challenges, making the discovery of more sustainable feed sources essential. Insects, processed via entotechnology may be one possible solution to this problem while Bacillus probiotics pasta’s potential to enhance species’ health. This study investigates the effects of feeding probioticenriched live mealworms to giant freshwater prawns (Macrobrachium rosenbergii). A 17week trial tested five feed types: Commercial Prawn Feed (CPF), CPF with live mealworm (CPF+MW), mealworm (MW), probiotic-enriched mealworm (PMW), and CPF with probiotic-enriched mealworm (CPF+PMW). GFP fed 50% or 100% live mealworms, with or without probiotics, showed similar monounsaturated fatty acid (MUFA) deposition, suggesting optimal MUFA retention. Arachidonic acid (ARA) levels in prawns exceeded that of the feed while live mealworm feeding did not impact docosahexaenoic acid (DHA) levels. These findings indicate selective retention of ARA and limited bioconversion of linoleic and alpha-linolenic acids into ARA and DHA. Additionally, MW and CPF+PMWfed prawns had higher phenoloxidase activity, CPF+MW and PMW-fed prawns exhibited better survival in the nitrite stress test, suggesting improved immunity and stress tolerance. In conclusion, live mealworms are a viable feed alternative for GFP, supporting immune response and nutrient retention, though probiotic enrichment did not offer additional benefits under the conditions tested.
Effect of salinity and fertilization on the growth and sensory attributes of sea grapes, Caulerpa lentillifera Germaine Ming-Ming Sia, Chaiw-Yee Teoh, Silvara Junus Aquaculture Reports, 2024 Sea grapes (Caulerpa lentillifera), also known as "green caviar," are prized for their succulent texture and appearance resembling fish roe. However, their commercial viability faces challenges due to limited research on growth and quality enhancement. For 8 weeks, a 3 × 2 factorial indoor tank culture experiment was conducted to investigate the influence of salinity levels (27, 31, and 35) and fertilizer treatments (with and without) using a ratio of nitrate nitrogen to orthophosphate of 5:1 on sea grape growth and sensory attributes. Results showed that salinity, fertilizer, and their interaction significantly (P < 0.05) influenced sea grape growth. Salinity had a significant impact on all sensory attributes, while fertilizer and its interaction affected appearance, flavor, oceanic freshness, sweetish aftertaste, and taste. In conclusion, the study recommends sea grape cultivation at 35 salinity with fertilizer application for optimal growth and sensory qualities. These findings provide valuable insights for improving sea grape cultivation and enhancing commercial success.
Measurements of water quality and growth metrics in freshwater aquaculture: Dataset and technical challenges QSC Kiu, CY Teoh, AL Ooi, WL Wong, YH Chong IEEE Instrumentation & Measurement Magazine , 2026 2026
Impact of defatted black soldier fly larvae meal on growth, feed utilisation, and fillet quality in freshwater-reared Asian seabass JY Tan, CY Teoh Journal of Insects as Food and Feed 1 (aop), 1-13 , 2026 2026
Supplementation of Dietary Fungal Oil Containing Arachidonic Acid Improves Fatty Acid Composition and Promotes Ovarian Development in Giant Freshwater Prawn, Macrobrachium … S Ibrahim, CY Teoh, M Ikhwanuddin, SN Mohamad, WK Ng Borneo Journal of Marine Science and Aquaculture (BJoMSA) 9, 1-35 , 2025 2025
Enhancing productivity and sustainability in giant freshwater prawn Macrobrachium rosenbergii farming: a review of advances and challenges QSC Kiu, CY Teoh, WL Wong Aquaculture International 33 (8), 713 , 2025 2025
Impact of live mealworm feeding and probiotic enrichment on the health performance and fatty acid composition of giant freshwater prawn, Macrobrachium rosenbergii S Murali, CY Teoh, WL Wong J Sustain Sci Manag 20, 1422-1436 , 2025 2025 Citations: 1
Growth and nutritional quality in giant freshwater prawn, Macrobrachium rosenbergii through live mealworm feeding with probiotic enrichment S Murali, C Teoh, WL Wong Sains Malays 54 (3), 629-640 , 2025 2025 Citations: 1
Sialic acid, nutritional and fatty acid compositions of three species of freshwater fish eggs WY Tham, MK Ong, CY Teoh BIO Web of Conferences 182, 01004 , 2025 2025
Functional Red Palm Oil as a Fish Oil Alternative on Growth, Feed Utilization, and Coloration in Giant Freshwater Prawn, Macrobrachium rosenbergii PU Galah Sains Malaysiana 54 (2), 325-332 , 2025 2025 Citations: 1
Consumer perspectives towards aquaponics: Products and native fish cultivation QS Colin Kiu, AL Ooi, CY Teoh IOP Conference Series: Earth and Environmental Science 1408 (1), 012001 , 2024 2024 Citations: 1
Computer vision for automated prawn cultivation: density and growth estimation WK Cheng, BY Ooi, TB Tan, XW Chong, TJJ Ling, CY Teoh, AL Ooi, ... 2024 International Conference on Consumer Electronics-Taiwan (ICCE-Taiwan … , 2024 2024 Citations: 3
Effect of salinity and fertilization on the growth and sensory attributes of sea grapes, Caulerpa lentillifera GMM Sia, CY Teoh, S Junus Aquaculture Reports 36, 102165 , 2024 2024 Citations: 8
Comparison of microwave and vacuum oven drying on the amino acid composition and antioxidant properties of black soldier fly (Hermetia illucens) prepupae IS Lier, MK Ong, SY Leong, CY Teoh LWT 196, 115870 , 2024 2024 Citations: 17
A preliminary study on the current status and development of commercial aquaponics farms in Malaysia QSC Kiu, CY Teoh, AL Ooi Manuscript submitted for publication , 2024 2024 Citations: 1
Effect of Creep Feed Formulated with Palm Kernel Cake and Tropical Forages on Growth Performance of Boer Crossbred Kids XY Ku, PJ Kwong, CY Teoh, MM Rahman, F Fariz Advances in Animal and Veterinary Sciences , 2024 2024
Effects of drying methods on the nutritional composition and physicochemical properties of black soldier fly ( Hermetia illucens ) prepupae IS Lier, MK Ong, SY Leong, CY Teoh AIP Conference Proceedings 2907 (1), 020002 , 2023 2023
Potential of Safmannan as a feed additive for juvenile African catfish ( Clarias gariepinus ): Growth, feed utilization efficiency, serum lysozyme activity, and total … CY Teoh, EV Loo Journal of Applied Aquaculture 35 (4), 865-877 , 2023 2023 Citations: 6
Comparative study on the nutritional content and physical attributes of giant freshwater prawn (Macrobrachium rosenbergii) and redclaw crayfish (Cherax quadricarinatus) meats ZB Tee, S Ibrahim, CY Teoh 2022 Citations: 8
Potential use of live mealworm as a sustainable feed to improve productivity of the giant freshwater prawn, Macrobrachium rosenbergii CY Teoh, WL Wong, SHK Chong ASM Science Journal 17, 1-8 , 2022 2022 Citations: 4
Does structural change in the zooplankton community affect larval fish feeding in anthropogenically disturbed tropical waters? WC Quah, LL Chew, VC Chong, C Chu, CY Teoh, AL Ooi Environmental Biology of Fishes 105 (1), 55-76 , 2022 2022 Citations: 11
Use of fish and shrimp hydrolysates as dietary supplements to increase feeding and growth of juvenile striped catfish (Pangasius hypophthalmus) CY Teoh, YY Wong Aquaculture International 29 (4), 1885-1894 , 2021 2021 Citations: 11
MOST CITED SCHOLAR PUBLICATIONS
Erratum to “Genetically improved farmed Nile tilapia and red hybrid tilapia showed differences in fatty acid metabolism when fed diets with added fish oil or a vegetable oil blend” CY Teoh, GM Turchini, WK Ng Aquaculture 316 (1-4), 144-154 , 2011 2011 Citations: 129
Farm-raised tiger shrimp, Penaeus monodon, fed commercial feeds with added organic acids showed enhanced nutrient utilization, immune response and resistance to Vibrio harveyi … WK Ng, CB Koh, CY Teoh, N Romano Aquaculture 449, 69-77 , 2015 2015 Citations: 107
The implications of substituting dietary fish oil with vegetable oils on the growth performance, fillet fatty acid profile and modulation of the fatty acid elongase, desaturase … CY Teoh, WK Ng Aquaculture 465, 311-322 , 2016 2016 Citations: 76
Dietary arachidonic acid and the impact on growth performance, health and tissues fatty acids in Malabar red snapper (Lutjanus malabaricus) fingerlings WL Chee, GM Turchini, CY Teoh, WK Ng Aquaculture 519, 734757 , 2020 2020 Citations: 48
Effects of replacing dietary fish oil and squid liver oil with vegetable oils on the growth, tissue fatty acid profile and total carotenoids of the giant freshwater prawn, M … YC Kim, N Romano, KS Lee, CY Teoh, WK Ng Aquaculture Research 44 (11), 1731-1740 , 2013 2013 Citations: 40
Assessment on the effects of dietary fatty acids on growth performance, body compositions, plasma lysozyme activity and sensorial quality of juvenile marble goby, Oxyeleotris … WM Ti, MK Ong, CY Teoh Aquaculture Reports 14, 100186 , 2019 2019 Citations: 18
Comparison of microwave and vacuum oven drying on the amino acid composition and antioxidant properties of black soldier fly (Hermetia illucens) prepupae IS Lier, MK Ong, SY Leong, CY Teoh LWT 196, 115870 , 2024 2024 Citations: 17
Evaluation of the impact of dietary petroselinic acid on the growth performance, fatty acid composition, and efficacy of long chain-polyunsaturated fatty acid biosynthesis of … CY Teoh, WK Ng Journal of agricultural and food chemistry 61 (25), 6056-6068 , 2013 2013 Citations: 14
Does structural change in the zooplankton community affect larval fish feeding in anthropogenically disturbed tropical waters? WC Quah, LL Chew, VC Chong, C Chu, CY Teoh, AL Ooi Environmental Biology of Fishes 105 (1), 55-76 , 2022 2022 Citations: 11
Use of fish and shrimp hydrolysates as dietary supplements to increase feeding and growth of juvenile striped catfish (Pangasius hypophthalmus) CY Teoh, YY Wong Aquaculture International 29 (4), 1885-1894 , 2021 2021 Citations: 11
Effect of salinity and fertilization on the growth and sensory attributes of sea grapes, Caulerpa lentillifera GMM Sia, CY Teoh, S Junus Aquaculture Reports 36, 102165 , 2024 2024 Citations: 8
Comparative study on the nutritional content and physical attributes of giant freshwater prawn (Macrobrachium rosenbergii) and redclaw crayfish (Cherax quadricarinatus) meats ZB Tee, S Ibrahim, CY Teoh 2022 Citations: 8
Potential of Safmannan as a feed additive for juvenile African catfish ( Clarias gariepinus ): Growth, feed utilization efficiency, serum lysozyme activity, and total … CY Teoh, EV Loo Journal of Applied Aquaculture 35 (4), 865-877 , 2023 2023 Citations: 6
Potential use of live mealworm as a sustainable feed to improve productivity of the giant freshwater prawn, Macrobrachium rosenbergii CY Teoh, WL Wong, SHK Chong ASM Science Journal 17, 1-8 , 2022 2022 Citations: 4
Computer vision for automated prawn cultivation: density and growth estimation WK Cheng, BY Ooi, TB Tan, XW Chong, TJJ Ling, CY Teoh, AL Ooi, ... 2024 International Conference on Consumer Electronics-Taiwan (ICCE-Taiwan … , 2024 2024 Citations: 3
Impact of live mealworm feeding and probiotic enrichment on the health performance and fatty acid composition of giant freshwater prawn, Macrobrachium rosenbergii S Murali, CY Teoh, WL Wong J Sustain Sci Manag 20, 1422-1436 , 2025 2025 Citations: 1
Growth and nutritional quality in giant freshwater prawn, Macrobrachium rosenbergii through live mealworm feeding with probiotic enrichment S Murali, C Teoh, WL Wong Sains Malays 54 (3), 629-640 , 2025 2025 Citations: 1
Functional Red Palm Oil as a Fish Oil Alternative on Growth, Feed Utilization, and Coloration in Giant Freshwater Prawn, Macrobrachium rosenbergii PU Galah Sains Malaysiana 54 (2), 325-332 , 2025 2025 Citations: 1
Consumer perspectives towards aquaponics: Products and native fish cultivation QS Colin Kiu, AL Ooi, CY Teoh IOP Conference Series: Earth and Environmental Science 1408 (1), 012001 , 2024 2024 Citations: 1
A preliminary study on the current status and development of commercial aquaponics farms in Malaysia QSC Kiu, CY Teoh, AL Ooi Manuscript submitted for publication , 2024 2024 Citations: 1
