Organic acids as potential growth promoters in the South African abalone Haliotis midae

Goosen, Neill J.; Görgens, Johann F.; Wet, Lourens Francois de; Chenia, Hafizah Y.

doi:10.1016/j.aquaculture.2011.09.019

Cited by 34 publications

(17 citation statements)

References 39 publications

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“…The similar result was also reported in crucian carp fed sodium butyrate supplemented diet (Sun et al., ). In a study with South African abalone ( Haliotis midae ), Goosen, Görgens, De Wet, and Chenia () reported significantly higher specific growth rate (SGR) and a lower FCR than the control when abalone fed diet containing a mixture of sodium benzoate and potassium sorbate. On the contrary, Bjerkeng et al.…”

Section: Discussionmentioning

confidence: 99%

Organic acid salts, protease and their combination in fish meal‐free diets improved growth, nutrient retention and digestibility of tilapia ( Oreochromis niloticus × O. aureus )

Huan

Chowdhury

et al. 2018

Aquacult Nutr

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A study was conducted to evaluate the effects of organic acid salt blend (OAB), protease complex (Pr) and their combination (OAB+Pr) in fish meal‐free diets on growth, nutrient retention and digestibility of tilapia. Five diets were designed: a positive control (PC) diet containing 80 g/kg fish meal (FM), a negative control (NC) diet containing 0 g/kg FM and 104 g/kg meat and bone meal, and three other diets supplemented with OAB (922 mg/kg), Pr (175 mg/kg) and OAB+Pr (922 mg/kg + 175 mg/kg) to the NC diet. Tilapia with an initial body weight of 7.0 ± 0.2 g were fed the five diets for 9 weeks. The results showed that the growth performance, nutrient digestibility and retention of NC group had the lowest values among groups. Weight gain of fish fed the OAB and OAB+Pr diets was higher, and feed conversion ratio was lower (p < 0.05) compared to those fed the NC diet, while no differences with those fed the PC diet. The digestibility of dry matter, crude protein, minerals and protein retention was improved in fish fed the OAB+Pr diet (p < 0.05), but not in those fed OAB or Pr diet (p > 0.05). There were no differences in whole‐body composition and lipid retention among the treatments (p > 0.05). The supplementation of OAB and Pr alone or combined significantly increased the villi height but not the width when compared to the NC group. It can be concluded that dietary supplementation of OAB+Pr in a fish meal‐free diet improves growth and nutrient digestibility in tilapia compared to those fed the fish meal‐free diet.

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Section: Discussionmentioning

confidence: 99%

Organic acid salts, protease and their combination in fish meal‐free diets improved growth, nutrient retention and digestibility of tilapia ( Oreochromis niloticus × O. aureus )

Huan

Chowdhury

et al. 2018

Aquacult Nutr

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“…In hybrid tilapia, the addition of 1-3 g kg À1 OAB showed no dietary effect on the gut microbiota composition, while 2 g kg À1 KDF tended to lower the relative population of potentially harmful A. hydrophila (Ng et al 2009). Similarly, Goosen et al (2011) reported that supplementation of various OAB, at 20 g kg À1 inclusion level, had no effect on the gut microbiota of the South Africa abalone.…”

Section: Effects Of Organic Acids On Gastrointestinal Microbiota Of Amentioning

confidence: 94%

“…Similarly, Goosen et al . () reported that supplementation of various OAB, at 20 g kg −1 inclusion level, had no effect on the gut microbiota of the South Africa abalone.…”

Section: Mode Of Action and Effects Of Dietary Organic Acidsmentioning

confidence: 99%

The utilization and mode of action of organic acids in the feeds of cultured aquatic animals

Koh

2016

Reviews in Aquaculture

231

215

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The use of antibiotics in the feeds of cultured aquatic animals to mitigate infectious diseases or to boost growth performance is commonly practised. In recent years, the prophylactic use of antibiotics has been criticized which eventually led to their ban in animal production by many countries. In view of the current restrictions on antibiotic use, there is a critical need to evaluate alternatives. One potential substitute for antibiotic growth promoters in aquafeeds is organic acids and/or their respective salts. The use of dietary organic acids in the culture of aquatic animals has been the focus of much research and commercial interest recently. This review provides a comprehensive compilation of the current knowledge on the use of organic acids in aquafeeds, with emphasis on its impacts on growth, nutrient utilization, mineral availability, gut microbiota and disease resistance. Many studies have reported that some organic acids can significantly enhance the growth performance and health status of fish. Contradictory results have also been reported, which seems to depend on the aquatic animal species, type and concentrations of organic acids and the culture conditions used. Recent research indicating the beneficial impact of dietary organic acids on shrimp growth and health is highlighted. Possible mechanisms of action of these functional feed additives are discussed. Strategies for enhancing the effectiveness of dietary organic acids are given. This review aims to contribute to the sustainability of global aquaculture production by providing a viable alternative to harmful antibiotics, thereby meeting the growing consumer demand for antibiotic-free seafood products.

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“…For example, potassium diformate (KDF) and/or sodium-diformate (NaDF) was reported to improve the growth performance and feed efficiency in different strain of tilapia (Lim et al, 2010;Ramli et al, 2005). For instance, a few studies suggest significant impacts of organic acids or blend inclusion (Abu Elala, & Ragaa, 2014;Goosen, Gorgens, De Wet, & Chenia, 2011;Ng et al, 2015;Romano et al, 2015) and others show negligible effects (Hossain, Pandey, & Satoh, 2007;Owen, Waines, Bradley, & Davies, 2006;Zhou et al, 2009) on the fish or shrimp growth performance. However, the practical use of organic acids/blend in commercial fish-feed formulation has been limited, largely due to the contradictory, inconsistent and variable observations reported among different experiments.…”

Section: Introductionmentioning

confidence: 99%

Organic acids blend as dietary antibiotic replacer in marine fish olive flounder,Paralichthys olivaceus

Katya¹,

Park

Bharadwaj³

et al. 2018

Aquac Res

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The present study was conducted to evaluate the efficacy of organic acid blends as dietary antibiotic replacer in marine fish olive flounder, Paralichthys olivaceus. Fish averaging 3.5 AE 0.05 g (mean AE SD) were fed one of the four experimental diets:(1) without antibiotic or organic acid (Control/CON); (2) with antibiotic-50 mg oxytetracycline per kg body weight per day (OTC); (3) with organic acid blend A-4 g/kg diet (OA A ); and (4) with organic acid blend B-4 g/kg diet (OA B ), for 10 weeks. At the end of the experiment, total intestinal bacterial counts in fish-fed OA A , OA B and OTC were significantly lower than that of fish-fed CON diet (p < 0.05). Further, the group of fish-fed organic acid blends (OA A , OA B ) or antibiotic (OTC)-supplemented diets exhibited lower intestinal Vibrio sp. counts compared with fish-fed CON diet. Disease challenge test with bacteria Edwardsiella tarda showed significantly lower cumulative mortality rates for the group of fish-fed OA A , OA B or OTC than that of fish-fed CON diet (p < 0.05). There were no negative effects on the growth, serological characteristics and proximate composition among the group of fish-fed different experimental diets. Therefore, the present experiment demonstrates that blends of organic acid could be a promising alternative to dietary antibiotics for the preventive and/or curative health management in marine fish olive flounder aquaculture. K E Y W O R D Santibiotic, blend, disease, organic acids, replacement

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Organic acids as potential growth promoters in the South African abalone Haliotis midae

Cited by 34 publications

References 39 publications

Organic acid salts, protease and their combination in fish meal‐free diets improved growth, nutrient retention and digestibility of tilapia ( Oreochromis niloticus × O. aureus )

Organic acid salts, protease and their combination in fish meal‐free diets improved growth, nutrient retention and digestibility of tilapia ( Oreochromis niloticus × O. aureus )

The utilization and mode of action of organic acids in the feeds of cultured aquatic animals

Organic acids blend as dietary antibiotic replacer in marine fish olive flounder,Paralichthys olivaceus

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