Digestibility and postprandial ammonia excretion in Nile tilapia (Oreochromis niloticus) fed diets containing different oilseed by-products

Obirikorang, Kwasi Adu; Amisah, S.; Fialor, Simon Cudjoe; Skov, Peter Vilhelm

doi:10.1007/s10499-015-9881-z

Cited by 15 publications

(18 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Fish diets in aquaculture usually contain a high protein content. As a result, excretion of ammonia is quite high and is one of the chemical compounds that most quickly accumulates in water after the feeding period [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Influence of temperature, ammonia load and hydraulic loading on the performance of nitrifying trickling filters for recirculating aquaculture systems

Godoy-Olmos

Martínez‐Llorens

Tomás‐Vidal

et al. 2019

Journal of Environmental Chemical Engineering

View full text Add to dashboard Cite

In recirculating aquaculture systems, performance of nitrifying biofilters for total ammonia nitrogen (TAN) removal from the culture water and thus minimizing eutrophication depends on numerous elements of design. In this article the combined effect of three of these process parameters (temperature, hydraulic loading and TAN load) is evaluated. Ammonia removal rates (N-TAN divided by biofiltration area and day) were measured for every combination of five different temperatures, three different hydraulic loadings and three different ammonia loads. Every one of the process parameters were influential on nitrification rates and the lowest process parameters values corresponded with significantly lower N-TAN removal rates. A significantly higher mean N-TAN removal rate (0.241 gN-TAN removed m -2 day -1 ) was found for the combination of the highest water temperature (27 ºC), the highest hydraulic loading (11 2 m 3 m -2 h -1 ) and the highest TAN load (9 gTAN m -3 day -1 ), suggesting a positive synergy of the three process parameters on the achievement of greater biofilter performances.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of temperature, ammonia load and hydraulic loading on the performance of nitrifying trickling filters for recirculating aquaculture systems

Godoy-Olmos

Martínez‐Llorens

Tomás‐Vidal

et al. 2019

Journal of Environmental Chemical Engineering

View full text Add to dashboard Cite

show abstract

“…Recent trends in aquafeed formulations are usually towards reducing faecal matter production relative to feed intake. In this study, the inclusion of the PPBs resulted in significantly higher faeces production (gDMkg −1 feed) which is related to inefficient digestion of fibre and NSP components of the diets (Kokou & Fountoulaki, 2018;Obirikorang et al, 2015c). Even though the high faecal matter production following the ingestion of the PPB diets could have negative implications for water quality through the release of nitrogen and phosphorus (Bureau & Cho, 1999;Wallace, Sanders, & Ferl, 1991), the faecal matter produced by the fish that received the PPB diets were within the 10%-30% reported in culture systems (Chen, Coffin, & Malone, 1997;Cho & Bureau, 1997).…”

Section: Discussionmentioning

confidence: 75%

“…The inclusions of plant ingredients in aquafeeds usually result in high levels of indigestible dietary fibre, non-starch polysaccharides (NSPs) and anti-nutritional factors (Duodu et al, 2018;Francis, Makkar, & Becker, 2001). In this study, the inclusion of the PPBs resulted in significantly higher faeces production (gDMkg −1 feed) which is related to inefficient digestion of fibre and NSP components of the diets (Kokou & Fountoulaki, 2018;Obirikorang et al, 2015c). In a study by Soltan, Hanafy, and Wafa (2008), the replacement of fishmeal up to 45% with plant protein mixtures (cottonseed meal, sunflower meal, canola meal, sesame and linseed meal) in diets for Nile tilapia did not adversely affect nutrient ADCs compared with the fishmeal control diet.…”

Section: Discussionmentioning

confidence: 75%

“…Total ammonia nitrogen (TAN) determination followed the procedure of Obirikorang, Amisah, Fialor, and Skov () immediately after faecal collection for digestibility. Before TAN sampling, fish were starved for 24 hr to allow complete emptying of the gastro‐intestinal tract and all the tanks were thoroughly cleaned to eliminate faecal and feed traces.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

The effect of plant protein‐based diets on apparent nutrient digestibility, growth response, egesta quantity, postprandial ammonia excretion rate and serum quality of Nile tilapia

et al. 2019

Self Cite

View full text Add to dashboard Cite

The study assessed the effect of oilseed meal mixtures on the biological value, faecal matter output, ammonia excretion rates and serum biochemistry of Nile tilapia over 63 days. The experimental diets (PPB 1, PPB 2 and PPB 3) were formulated using four selected oilseed meals that were mixed in different protein proportions to contribute 80% of total dietary crude protein. In each diet, either one or two of the oilseed meals were the dominant protein contributor. A commercial tilapia feed was used as the control diet (CTRL). Sex‐reversed Nile tilapia fingerlings (35 g) were stocked at 20 fish per tank in a recirculation system and fed at 3% body weight of their respective diets. At the end of the study, ADCs of dry matter, crude lipid and ash were significantly (p < .05) lower in all the plant‐based diets compared with the control diet. Fish fed the control diet had significantly higher weight gain and SGR compared with the plant‐based diets. Egesta output was 127% higher in the plant‐based diets compared with the control diet. All dietary treatments exhibited a similar trend in changes in ammonia nitrogen. Nevertheless, serum metabolites levels indicated no significant differences among treatments. Although the PPBs did not affect ADC of protein and serum profile, fish growth was reduced while faecal output increased.

show abstract

“…The high fiber content and anti-nutritional factors (ANFs) limit its inclusion in aqua feeds to very low levels [11] recommend maximum dietary inclusion levels of 150 g kg -1 for omnivorous fish and 100 g kg -1 for carnivorous fish species. Some earlier studies have, however, shown that unprocessed copra meal can replace 300 g kg -1 of fishmeal in Nile tilapia diets without adversely affecting feed intake [12], protein digestibility and short-term growth and feed utilization parameters [13]. Interestingly, simple processing techniques, such as soaking in water [14], and wet heating/autoclaving [15] can significantly reduce the levels of anti-nutritional factors in copra meal and facilitate higher levels of inclusions in fish feeds.…”

Section: Journal Of Animal Research and Nutrition Issn 2572-5459mentioning

confidence: 99%

Growth Performance, Feed Utilization and Sensory Characteristics of Nile Tilapia, Oreochromis niloticus Fed Diets with High Inclusion Levels of Copra Meal

Obirikorang¹,

Amisah²,

Skov³

2016

J Anim Res Nutr

Self Cite

View full text Add to dashboard Cite

Background:The low cost and wide-availability of copra meal in many tropical countries where aquaculture is practiced have generated much interest in its potential inclusion in fish diet formulations. The present study was designed to investigate the effect of very high inclusions of autoclaved copra meal on the growth and feed utilization parameters as well as the sensory qualities of the Nile tilapia, Oreochromis niloticus. Methods: Fish were fed three experimental diets, a control (CTRL) diet which had fishmeal as the main protein source at an inclusion of 365 gkg -1 and two test diets which contained copra meal at 680 g kg -1 inclusions for a 6-week period. One of the copra meal diets contained sesame meal supplementation (CM+S) as a natural high source of methionine which is the first limiting essential amino acid in copra meal. Results:The dietary treatments had no differential effects on growth, feed intake, or feed utilization parameters in O. niloticus. With the exception of the significantly higher lipid content of the CM+S group, the whole body compositions of the different fish groups were not significantly affected by the different dietary treatments. Remarkably, the high dietary inclusions of copra meal did not have any significant effects on fillet sensory attributes. Conclusions:The results of this study demonstrate that it is possible to include autoclaved copra meal up to 680 g kg -1 in Nile tilapia diets without any deleterious effects on fish growth or on flesh sensory characteristics.

show abstract

Digestibility and postprandial ammonia excretion in Nile tilapia (Oreochromis niloticus) fed diets containing different oilseed by-products

Cited by 15 publications

References 30 publications

Influence of temperature, ammonia load and hydraulic loading on the performance of nitrifying trickling filters for recirculating aquaculture systems

Influence of temperature, ammonia load and hydraulic loading on the performance of nitrifying trickling filters for recirculating aquaculture systems

The effect of plant protein‐based diets on apparent nutrient digestibility, growth response, egesta quantity, postprandial ammonia excretion rate and serum quality of Nile tilapia

Growth Performance, Feed Utilization and Sensory Characteristics of Nile Tilapia, Oreochromis niloticus Fed Diets with High Inclusion Levels of Copra Meal

Contact Info

Product

Resources

About