Remarkably high ingestion ratio of acidic food in juvenile marble goby, Oxyeleotris marmorata

Teoh, C. P.; Lim, Leong‐Seng; Kawamura, Gunzo

doi:10.1007/s40071-017-0184-z

Cited by 5 publications

(3 citation statements)

References 7 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the acidified diet intake did not support the fish growth, O marmorata showed higher intake of AD 2.5 and AD 3.2 than the other diets (Control,AD 5.3,and AD 4.3) in this study. This result was in agreement with the findings by Teoh et al (2018) and Lim et al (2018) indicating that O. marmorata has strong preference for acidic food. Nevertheless, the present study shows that O. marmorata only accepted the acidified diets for 3 weeks and the intake decreased after the 3 rd week of the feeding trials.…”

Section: Discussionsupporting

confidence: 93%

“…According to Lim et al (2017), O. marmorata juveniles showed high ingestion ratio of the organic acids-acidified agar gel pellets, and hence the preference for acidic foods was suggested. Teoh et al (2018) further confirmed the preference of O. marmorata for diet of pH = 2.4 -3.0 through behavioural assays by replacing the organic acids with solely hydrochloric acid. Indeed, the length of weaning period can be shortened and the number of successfully weaned fish increased when the O. marmorata juveniles were weaned using the pH 2.5 and pH 3.2 acidified diets, rather than the control diet (pH 6.0) (Lim et al, 2018).…”

Section: Introductionsupporting

confidence: 61%

See 1 more Smart Citation

Growth performance and feed utilization of juvenile marble goby (Oxyeleotris marmorata) fed acidified diets

Teoh

Lim

Kawamura

et al. 2019

Borneo J. Mar. Sci. Aqua

View full text Add to dashboard Cite

The present study was aimed at evaluating the growth performance and feed utilization of marble goby (Oxyeleotris marmorata) juveniles fed with the acidified diets (AD). In feeding trial I, five fish meal-based diets were prepared [control (pH 6.0), AD 5.3, 4.3, 3.2 and 2.5]. Each diet was fed to triplicate batches of wild-caught O. marmorata (19 fish/ tank; total length, TL = 4.72Â±0.46 cm) for 8 weeks. The control, AD 5.3, and AD 4.3 treatments were terminated at week 4, due to drastic decline in total feed intake (TFI=0â€“0.05 g) and weight loss (weight gain, WG = -15.3 to -16.9%) in the fish. The AD 3.2 and AD 2.5 treatments were continued until week 8. Fish fed with the AD 3.2 showed significantly higher (P < 0.05) TFI (0.98 g) compared to those fed with the AD 2.5 (0.73 g) at the end of the trial. Feeding trial II was done to assess the long-term effects of AD for another 7 weeks. Thirty fish specimens were randomly selected from each of AD 3.2 and AD 2.5 treatments and stocked individually in 7 L aquaria to eliminate the territorial behaviour that was observed in the first trial. At the end of the experiment, fish fed AD 3.2 attained significantly higher (P < 0.05) WG (34%) than those fed AD 2.5 (13%). However, the growth performance and feed utilization results of the present study were very poor compared to those fed the normal fishmeal-based diet as is evident from synthesis of data from the literature review. Feeding of acidified diets was, therefore, not recommended for an extended period (> 3 weeks). Nevertheless, based on the strong preference of the fish for AD, it is worth trying to develop a weaning protocol using these diets as the starter feed and then slowly replacing them with the normal diet.

show abstract

Section: Discussionsupporting

confidence: 93%

Section: Introductionsupporting

confidence: 61%

Growth performance and feed utilization of juvenile marble goby (Oxyeleotris marmorata) fed acidified diets

Teoh

Lim

Kawamura

et al. 2019

Borneo J. Mar. Sci. Aqua

View full text Add to dashboard Cite

show abstract

“…Measuring the amount of consumed food in a certain time commonly helps in the assessment of food acceptability (Lim et al, 2016;Lim et al, 2017;Teoh et al, 2018). Holland and Borski (1993) stated that, unlike food test which incorporate stimuli into pellet food, assay of agar discs infused with test stimuli is independent of confounding factors such as pellet size, texture, or hardness, and the results are not influenced by other compounds extant in the pellets.…”

Section: Food Acceptability and Palatabilitymentioning

confidence: 99%

Comparative morphology and function of feeding appendages in food intake behaviour of the whiteleg shrimp, Litopenaeus vannamei, and the giant freshwater prawn, Macrobrachium rosenbergii

Gunzo Kawamura,

Teodora Uy Bagarinao,

Nur Syallinaz Seniman

et al. 2018

Borneo J. Mar. Sci. Aqua

View full text Add to dashboard Cite

Combining feeding appendage morphology and behavioural observation of the motion pattern of the feeding appendages clarified many aspects underlying the feeding processes of the giant freshwater prawn (Macrobrachium rosenbergii) and the marine whiteleg shrimp (Litopenaeus vannamei) in aquaria. The food intake behaviour was video recorded during eating pellet food, pieces of fresh squid and fish. While M. rosenbergii took pellet one by one, L. vannamei picked up many pellets at one time and held them at the mouth with the 3rd maxilliped endopods and the 1st walking legs. Both species used the right chelate walking legs rather than the left walking legs to pick up the food. The 3rd walking legs of L. vannamei were longest and heaviest among the chelate walking legs but their major role was not for feeding but for feeding contests aggression. While M. rosenbergii easily crunched pellets by the mandibles, L. vannamei did not crunch pellets due to the softer and not strong mandibles and frequently spat out them, indicating that the present hard pellets are not suitable for L. vannamei. Both species kept a piece of elastic fresh squid or fish flesh at the mouth and tore the food into small pieces with the help of repeated pulling down motion of the 3rd maxilliped endopods. However, the mandible teeth of the two spices were not sharp enough to gnaw off the fibrous muscle in one bite. The 2nd and 3rd maxilliped endopods were used for holding food at the mouth and did not contribute to mastication of food. The 2nd and 3rd maxilliped exopods exhibited the horizontal fanning motion, which a unidirectional water flow moving backwards in the gill chamber (visualized with milk). The maxilliped exopods were found to contribute not to feeding but ventilation. Based on the results obtained, development of softer pellets was recommended for L. vannamei.

show abstract

Diel osmorespiration rhythms of juvenile marble goby (Oxyeleotris marmorata)

Lim

Tan

Tuzan

et al. 2020

Fish Physiol Biochem

View full text Add to dashboard Cite

Oxyeleotris marmorata is an ambush predator. It is known for slow growth rate and high market demand. Farming of O. marmorata still remains a challenge. In order to establish a proper feeding practice to stimulate growth, knowledge of its metabolic processes and cost should be examined. Therefore, this study was designed to investigate the diel osmorespiration rhythms of O. marmorata in response to feeding challenge by using an osmorespirometry assay. The results have shown that oxygen consumption rate of the fed fish was approximately 3 times higher than that of the unfed fish in early evening to support specific dynamic action. Digestion and ingestion processes were likely to be completed within 18-20 h in parallel with the ammonia excretion noticeable in early morning. Under resting metabolism, metabolic oxygen consumption was influenced by diel phase, but no effect was noted in ammonia excretion. As a nocturnal species, O. marmorata exhibited standard aerobic metabolic mode under dark phase followed by light phase, with high oxygen consumption rate found in either fed or unfed fish. It can be confirmed that both the diel phase and feeding have a significant interactive impact on oxygen consumption rate, whereas ammonia metabolism is impacted by feeding state. High metabolic rate of O. marmorata supports the nocturnal foraging activity in this fish. This finding suggested that feeding of O. marmorata should be performed during nighttime and water renewal should be conducted during daytime.

show abstract

Remarkably high ingestion ratio of acidic food in juvenile marble goby, Oxyeleotris marmorata

Cited by 5 publications

References 7 publications

Growth performance and feed utilization of juvenile marble goby (Oxyeleotris marmorata) fed acidified diets

Growth performance and feed utilization of juvenile marble goby (Oxyeleotris marmorata) fed acidified diets

Comparative morphology and function of feeding appendages in food intake behaviour of the whiteleg shrimp, Litopenaeus vannamei, and the giant freshwater prawn, Macrobrachium rosenbergii

Diel osmorespiration rhythms of juvenile marble goby (Oxyeleotris marmorata)

Contact Info

Product

Resources

About