Effects of different modified diets on growth, digestive enzyme activities and muscle compositions in juvenile Siamese fighting fish (Betta splendens Regan, 1910)

Thongprajukaew, Karun; Kovitvadhi, Uthaiwan; Kovitvadhi, Satit; Somsueb, Pisamai; Rungruangsak‐Torrissen, Krisna

doi:10.1016/j.aquaculture.2011.10.006

Cited by 64 publications

(71 citation statements)

References 36 publications

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“…Digestive enzymes Intestine sample preparation and digestive enzymes analyses were performed as described by Thongprajukaew et al (2011). Intestine samples (n = 6/treatment) were diluted, homogenized, centrifuged and the supernatant used for analyse.…”

Section: Sampling Proceduresmentioning

confidence: 99%

Dietary probiotic supplementation improves growth and the intestinal morphology of Nile tilapia

Ramos¹,

Batista²,

Pires

et al. 2017

Animal

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Probiotic administration can be a nutritional strategy to improve the immune response and growth performance of fish. The current study aimed to evaluate the effects of a probiotic blend (Bacillus sp., Pediococcus sp., Enterococcus sp., Lactobacillus sp.) as a dietary supplement on growth performance, feed utilization, innate immune and oxidative stress responses and intestinal morphology in juvenile Nile tilapia (Oreochromis niloticus). The probiotic was incorporated into a basal diet at three concentrations: 0 g/kg (A 0 : control), 3 g/kg (A 1 : 1.0 × 10 6 colony forming unit (CFU)/g) and 6 g/kg (A 2 : 2.3 × 10 6 CFU/g diet). After 8 weeks of probiotic feeding, weight and specific growth rate where significantly higher in fish-fed A 1 diet than in fish-fed A 0 . Alternative complement in plasma was significantly enhanced in fish-fed A 2 when compared with A 0 . The hepatic antioxidant indicators were not affected by probiotic supplementation. Villi height and goblet cell counts increased significantly in the intestine of fish-fed A 1 and A 2 diets compared with A 0 . The dietary probiotic supplementation was maintained until 20 weeks of feeding. Then the selected immune parameters, digestive enzymes and apparent digestibility of diets were studied. No effect of probiotic feeding was observed after that longer period supplementation. The dietary supplementation of mixed species probiotic may constitute a valuable nutritional approach towards a sustainable tilapia aquaculture. The improvement of the immune responses and intestinal morphology play an important role in increasing growth performance, nutrient absorption and disease resistance in fish, important outcomes in such a competitive and developing aquaculture sector.

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Section: Sampling Proceduresmentioning

confidence: 99%

Dietary probiotic supplementation improves growth and the intestinal morphology of Nile tilapia

Ramos¹,

Batista²,

Pires

et al. 2017

Animal

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“…We have previously suggested that feed utilization efficiency in aquatic animals is typically studied through digestive enzymes extracted from the alimentary tracts 3 . In higher animals, faecal analysis can be used for monitoring feed quality in domestic livestock 4 , and for identifying sex and species of organisms present in the wild 5 .…”

Section: Introductionmentioning

confidence: 99%

Faecal characteristics as markers of Chelonia mydas feeding

Thongprajukaew¹,

Kanghae²,

Kittiwattanawong³

2016

ScienceAsia

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ABSTRACT:Faecal sampling can provide an unobtrusive monitoring of feed utilization. We demonstrate that faecal digestive enzymes and physicochemical characteristics correlate with the feed conversion efficiency in green turtle (Chelonia mydas). The 10-day-old juvenile turtles (25.4 ± 1.3 g body weight) were fed with either fresh feed containing minced fresh fish and vegetable (diet 1); fresh feed containing minced fish fillet, vegetable and fish pellet diet (diet 2); or only fish pellet diet (diet 3) for four months in a completely randomized design (3 treatments × 3 replicates × 10 subjects per replication). Analysis of faecal digestive enzymes (pepsin, trypsin, amylase, and activity ratio of amylase to trypsin) based on colorimetric determinations of specific activity suggested that carbohydrate digestion is a key indicator for feed utilization efficiency in terms of intake and conversion ratio. Physicochemical characteristics to enhance enzymatic hydrolysis, namely, microstructure (scanning electron microscope), thermal transition properties (differential scanning calorimeter), and relative crystallinity (X-ray diffractometer) indicate that the faeces of turtles fed with diet 3 provide a superior feed utilization efficiency. The observed faecal characteristics varied in response to different diets over the duration of the experiments. Thus analysis of faecal digestive enzymes and physicochemical characteristics appear to provide useful unobtrusively sampled indicators for determining feed utilization and can be applied in studies of nutritional status in endangered species without conflicting ethical standards.

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“…Specified optimal conditions for studying digestive enzyme activities in Siamese fighting fish were used as described in Thongprajukaew et al (2011). Amylase activity was determined based on Areekijseree et al (2004) using starch solution as a substrate.…”

Section: Digestive Enzyme Assaysmentioning

confidence: 99%

“…Moreover, supplementation of aquaculture feed with red monascal rice for rearing juvenile Siamese fighting fish has been reported (Thongprajukaew et al, 2011). Safety evaluation of red monascal rice for use as a food supplement has been studied in chickens , rats (Chan and Shiao, 2007;Kumari et al, 2009) and rabbits (Wei et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Effects of red monascal rice supplementation on growth, digestive function and oocyte maturation in Siamese fighting fish (Betta splendens Regan, 1910)

Thongprajukaew¹,

Kovitvadhi²,

Somsueb³

et al. 2013

Afr. J. Biotechnol.

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Evaluation of red monascal rice supplementation on growth, digestive function and oocyte maturation were investigated in Siamese fighting fish (Betta splendens). Completely randomized design with different dietary levels of red monascal rice (0.00, 0.25, 0.50, 1.00 and 2.00%) was conducted for six weeks. The growth of fish fed a control diet was not statistically different (P > 0.05) from a diet containing 0.25% of red monascal rice. However, significantly lower values (P < 0.001) were observed in fish fed more than 0.50% red monascal rice, in a dose-dependent manner. Muscle RNA concentrations were higher in fish fed control diet than in fish fed red monascal rice, while protein concentration and RNA/protein ratio were similar. Body composition and fatty acid profiles (saturated fatty acids, monounsaturated fatty acids, polyunsaturated fatty acids, total omega-3 and total omega-6) were unchanged among dietary treatments. Digestive functions were perturbed by decreasing the specific activities of amylase, total protease, trypsin and chymotrypsin (P < 0.001), and increasing the specific activity of lipase (P < 0.005). Reproductive consummation of oocytes was significantly different in fish fed red monascal rice, due to increasing RNA concentration and RNA/protein ratio (P < 0.003) and decreasing specific activities of trypsin-and chymotrypsin-like enzymes (P < 0.03). These findings suggest the toxicological effects of red monascal rice by interfering with growth, digestive function and oocyte maturation in Siamese fighting fish.

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Effects of different modified diets on growth, digestive enzyme activities and muscle compositions in juvenile Siamese fighting fish (Betta splendens Regan, 1910)

Cited by 64 publications

References 36 publications

Dietary probiotic supplementation improves growth and the intestinal morphology of Nile tilapia

Dietary probiotic supplementation improves growth and the intestinal morphology of Nile tilapia

Faecal characteristics as markers of Chelonia mydas feeding

Effects of red monascal rice supplementation on growth, digestive function and oocyte maturation in Siamese fighting fish (Betta splendens Regan, 1910)

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