Digestibility and digestive enzyme activity in Labeo fimbriatus (Bloch, 1795) fed periphyton grown on sugarcane bagasse

Barlaya, Gangadhar; Nimmagadda, Sridhar; Umalatha, H.; Ganesh, H.; Simon, Anja; Jayasankar, P.

doi:10.21077/ijf.2017.64.1.47136-06

Cited by 5 publications

(4 citation statements)

References 44 publications

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“…Gangadhar, Sridhar, et al. (2017) also reported higher trypsin and total protease in L . fimbriatus fed periphyton compared to those fed pelleted feed.…”

Section: Discussionmentioning

confidence: 86%

Larval rearing of fringe‐lipped carp,Labeo fimbriatus(Bloch) with low cost diets including green bottle flyLucilia sericata(Meigen) larvae meal incorporated diet

et al. 2021

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A study was conducted with non‐conventional ingredients to test their efficacy as fishmeal (FM) replacers in the diet of fringe‐ lipped carp. Labeo fimbriatus first feeding larvae and fry were reared for 30 and 60 days in indoor, 50 L, aerated, circular plastic tanks at 100 and 30 numbers tank−1, respectively. In the first feeding larvae to fry rearing experiment (Exp. 1), the fish were fed with either of the following isonitrogenous and isocaloric diets – live plankton, FM diet, green bottle fly (Lucilia sericata) larvae meal (GBFLM) diet and silkworm pupa (SWP) diet. The fry to fingerling rearing (Exp. 2), was also conducted using the same diets described above except live plankton. All compounded diets were formulated to contain 40% crude protein for the experiment 1 and 35% for experiment 2 and were fed ad libitum. Triplicate tanks were maintained for each treatment in both the experiments. In Exp. 1, the mean final weight of fry was higher with plankton and FM diets, while no difference (p > .05) was observed between FM and GBFLM diets. Weight of fish fed SWP diets was not statistically different from those fed GBFLM diet. No difference (p > .05) in final length, survival and condition factor was recorded. Analysis of digestive enzyme activity of whole fish revealed lower (p < .05) activity of amylase in fish fed plankton. In Exp. 2, no difference (p > .05) was observed between the different diet groups in terms of mean final weight, length, survival and condition factor. Analysis of digestive enzyme activity of whole fish revealed no difference (p > .05) in the activity of digestive enzymes between the treatments except a lower (p < .05) activity of trypsin in FM diet and lipase in FM and GBFLM diets. Since the survival and condition factors of animals is the most important aspect during nursery rearing, similar (p > .05) values recorded in different treatments indicate the possibility of incorporation of these non‐conventional protein sources in the diet of L. fimbriatus during first feeding larvae to fry and fry to fingerling rearing.

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“…Gangadhar, Sridhar, et al. (2017) also reported higher trypsin and total protease in L . fimbriatus fed periphyton compared to those fed pelleted feed.…”

Section: Discussionmentioning

confidence: 86%

Larval rearing of fringe‐lipped carp,Labeo fimbriatus(Bloch) with low cost diets including green bottle flyLucilia sericata(Meigen) larvae meal incorporated diet

et al. 2021

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“…As previously mentioned, the microorganisms present in the culture tanks convert the inorganic nitrogen in water and make it available to fish in the form of microbial protein (Kolek et al, 2019), increasing protein conversion from 20-25 to 45%. Some studies suggest that periphyton ingestion raises the activity of intestinal enzymes, providing a higher amount of protein to fish (Mridula et al, 2005;Anand et al, 2013a;Gangadhar et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Periphyton use on microbial dynamics, water quality, and Nile tilapia growth in rearing tanks

Silva

Carvalho

et al. 2021

Pesq. agropec. bras.

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The objective of this work was to evaluate the effect of the use of an artificial substrate for periphytic biofilm growth on the microbiological composition of the biofilm, water quality, and zootechnical performance of Nile tilapia (Oreochromis niloticus) in rearing tanks. The experiment consisted of two treatments: presence and absence of artificial substrate for the growth of periphyton, with five replicates. Water quality parameters were evaluated throughout the entire experimental period. Every two weeks, samples of the periphyton were collected for the analysis of its microbiological composition and biometric measurements of the fish were performed. The number of heterotrophic bacteria in the biofilm increased during the experimental period, but that of Aeromonas decreased with the use of the artificial substrate. The total ammonia nitrogen in the tanks with periphyton reduced in 30% compared with that of the control. Tilapia reared with the biofilm showed a final weight 2.4 times greater than that of those subjected to the control, as well as an increase of 59.19% in their productivity. The use of an artificial substrate for periphytic biofilm in Nile tilapia rearing tanks favors the maintenance of the quality of the culture water, the protection of the fish against pathogens, and the improvement of the zootechnical performance of the fish.

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“…Measurement of supernatant protein content was carried out with a Folin-phenol reagent, and albumin was used as a standard (Gangadhar et al, 2017). The calculation of the enzyme activity used the protein content of the supernatant.…”

Section: Methodsmentioning

confidence: 99%

Protease and Amylase Activities of Javaen barb (Systomus rubripinnis Val.)

2022

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Studies on morphology, growth, and reproduction have been carried out on wild Javaen barb, but there was no information on its digestive capacity; therefore, the research was conducted to determine protease and amylase activities in the digestive tract. This study used a total of 50 barbs with body weights between 13.56 -128.93g / fish. The measurement of enzyme activity was carried out using the spectrophotometer method. The results showed that differences in fish size resulted in differences in protease activity, but not for amylase. Fish with a small size have a higher protease activity than fish with a larger size. The protease activity did not differ between pH 6.9 to 10.0 but was higher than pH 12.5. Protease activity also did not vary between the anterior and posterior intestine and between 30-50°C. Amylase activity also found no difference between the anterior and posterior intestine, but there was a difference in activity between temperatures of 30-50°C. In conclusion, protease activity occurs in a neutral to alkaline environment, and there were differences in protease activity between different body sizes but not between intestinal segments. Amylase activity occurs throughout the intestine and decreases at temperatures of 50°C.

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Digestibility and digestive enzyme activity in Labeo fimbriatus (Bloch, 1795) fed periphyton grown on sugarcane bagasse

Cited by 5 publications

References 44 publications

Larval rearing of fringe‐lipped carp,Labeo fimbriatus(Bloch) with low cost diets including green bottle flyLucilia sericata(Meigen) larvae meal incorporated diet

Larval rearing of fringe‐lipped carp,Labeo fimbriatus(Bloch) with low cost diets including green bottle flyLucilia sericata(Meigen) larvae meal incorporated diet

Periphyton use on microbial dynamics, water quality, and Nile tilapia growth in rearing tanks

Protease and Amylase Activities of Javaen barb (Systomus rubripinnis Val.)

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