Comparative analysis of using cereal grains and compound feed in semi-intensive common carp pond production

Marković, Zoran; Stanković, Marko; Rašković, Božidar; Dulić, Zorka; Živić, Ivana; Poleksić, Vesna

doi:10.1007/s10499-016-0076-z

Cited by 24 publications

(15 citation statements)

References 113 publications

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“…Our findings showed that the date of sampling is a more powerful predictor compared to the added feed type and support the findings of other authors [14]. However, the amount of added feed and the level of intensification can potentially affect the relationship between the feed types and the water quality [46][47][48][49][50]. In order to explain the phenomenon in more detail, further research on carrying capacity and retention dynamics of the fishponds could be highly valuable.…”

Section: Discussionsupporting

confidence: 87%

Effects of Different Fish Diets on the Water Quality in Semi-Intensive Common Carp (Cyprinus carpio) Farming

Berzi-Nagy

Mozsár

et al. 2021

Water

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Semi-intensive common carp (Cyprinus carpio) farm technology uses several feed types affecting the growth performance; however, we know less about their long-term effects on water quality. Herein, we evaluated the effects of three commonly used feeds—moderate levels of fish meal and fish oil feed (FF), plant meal and plant oil feed (PF), and cereal feed (CF) on the nutrient (total nitrogen (TN), total phosphorus (TP) and organic matter (OM)) content of the pond water. The experiment was carried out over three consecutive years from juveniles to market-sized fish. The type of feed affected the net yields, but generally, it did not affect the water quality. The year of sampling, however, was a significant factor affecting TN, TP, and OM, whose concentrations decreased during the three years. Our findings highlight that the age of the stocked fish on water quality has a more pronounced effect than the nutrient profile of the supplementary feed. Additionally, the plant-based feed could provide comparable net yields as the fish meal-based feed without additional nutrient loading in the water column, reinforcing the sustainability of alternative feeds in semi-intensive carp farming.

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Section: Discussionsupporting

confidence: 87%

Effects of Different Fish Diets on the Water Quality in Semi-Intensive Common Carp (Cyprinus carpio) Farming

Berzi-Nagy

Mozsár

et al. 2021

Water

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“…Although dietary supplementation of thepax (1 gm/kg) significantly (P<0.05) improved villus height, villus width and villus area, no effects were observed on intestinal wall thickness and crypt depth. This may be due to the fish's need for a long time to dietary prebiotic and then effects on intestinal wall thickness and crypt depth (Merrifield et al, 2011;Rašković et al, 2011).…”

Section: Resultsmentioning

confidence: 99%

“…Liver histopathological examination is one of the powerful tools that can be used effectively to monitor fish health in general, as liver is the main organ associated with the digestive system in fishes. Liver histopathological examination can reveal any adverse effects of feed components especially the novel or innovated ingredients (Rašković et al, 2011(Rašković et al, , 2013.…”

Section: Resultsmentioning

confidence: 99%

Dietary Thepax Effects on Intestinal Morphometry and Liver Histology in Young Common Carp (Cyprinus carpio L.)

Al-Mhanawi¹

2021

Biol. Appl. Environ. Res.

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The present study was carried out to assess the effect of diet supplemented with thepax on intestinal morphometry of young Cyprinus carpio. Fish mean weights were 13.40±1.85 gm and their mean total length 11.07±1.27 cm (30 specimens), which were randomly distributed into three treatments (two replications for each treatment). Fish groups were fed three dissimilar diets up to 60 days. The first group was fed with 0.5 gm thepax/kg diet, the second group was fed with 1 gm thepax/kg diet and the third group was served as the control group which fed basal diet without thepax.supplementation. The feed was applied twice daily at 3.0% of the body weight per day for 60 days. The intake of prebiotics (thepax) modified the gastrointestinal tracts. Villus length, villus width, and villus area were significantly (P<0.05) higher than control in young common carp fed the diet supplemented with thepax (1 gm/kg). No differences in liver histology are observed between the three experimental feed treatments. No histopathological changes like degeneration, necrosis, leukocyte infiltration, haemorrhage and steatosis were noticed. These results indicated that host-derived prebiotics, especially thepax (1 gm/kg) has significant potential as an important prebiotic to enhance the nutrients utilization and metabolism through increasing intestinal surface area in young common carp.

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“…Although the farms analysed in our study used cereal grains as feed, it must be noted that the use of compound pellets became widespread in some EU carp farming countries, and this is the main technological driver of intensification [41,42]. It is global trend that even herbivorous and omnivorous species that are traditionally considered to be relatively low-input species such as carps are increasingly being fed by compound feed [43].…”

Section: Discussionmentioning

confidence: 99%

Constraining Factors in Hungarian Carp Farming: An Econometric Perspective

et al. 2017

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Abstract:Although carp farming had a key role in the Blue Revolution at a global level, European carp aquaculture has stagnated over the past 25 years without achieving any productivity gains. The objective of this study was to identify the factors and mechanisms constraining production and productivity growth in pond-based carp farming in Hungary, as the country is a good representative of the EU pond-based farming sector. By using data from 44 carp farms, different specifications of the Cobb-Douglas production function were parameterized to investigate the determinants of yields and to assess the extent of economies of scale. Descriptive statistics show that large differences exist in productivity between individual farms, meaning that it is hard to implement technical standards and to ensure repeatability in extensive carp farming technology. Econometric analysis demonstrates that economies of scale do not prevail in pond-based farming in Hungary, so a concentration of farms would not stimulate a growth in carp farming. This may explain the stagnation of carp aquaculture, as the only European aquaculture segments which can grow are those that can exploit economies of scale. Further analysis demonstrates that labour is an important factor of production, and a decreasing workforce may constrain the intensification process of production. On the other hand, mechanisation did not prove to be a significant contributing factor to yields, indicating that large investment in equipment has a limited role in carp farming.

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Comparative analysis of using cereal grains and compound feed in semi-intensive common carp pond production

Cited by 24 publications

References 113 publications

Effects of Different Fish Diets on the Water Quality in Semi-Intensive Common Carp (Cyprinus carpio) Farming

Effects of Different Fish Diets on the Water Quality in Semi-Intensive Common Carp (Cyprinus carpio) Farming

Dietary Thepax Effects on Intestinal Morphometry and Liver Histology in Young Common Carp (Cyprinus carpio L.)

Constraining Factors in Hungarian Carp Farming: An Econometric Perspective

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