Effect of different levels of phosphorus on growth and mineralization in African giant catfish Heterobranchus bidorsalis (Geoffrey Saint Hillarie, 1809

Nwanna, LC; Adebayo, I. A.; Omitoyin, Bamidele Oluwarotimi

doi:10.4314/jasem.v12i4.55214

Cited by 6 publications

(6 citation statements)

References 21 publications

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“…Additionally, diet also has an influence on the chemical composition of fish, e.g. with mineral concentrations over the whole of the fish's body highly correlated with phosphorus level in the diet (Nwanna et al 2008(Nwanna et al , 2010. In our study, phosphorus concentration in the fish's body was correlated with an increase in phosphorus in the diet, though high variability between samples meant that the correlations were not significant.…”

Section: Discussioncontrasting

confidence: 56%

Compound feeds and cereals as potential tools for improved carp Cyprinus carpio production

Hlaváč¹,

Másílko²,

Antón-Pardo³

et al. 2016

Aquacult. Environ. Interact.

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Appropriate supplementary feeding is of increasing importance in common carpCyprinus carpio pond aquaculture, not only with respect to production issues but also as a sustainable tool for maintaining environmental quality. We studied the effect of different supplementary feeding regimes (no supplemental feed, cereal grains, pelleted feed, pelleted feed with lowered phosphorus content, and extruded feed) on growth performance, water quality, natural food availability, phosphorus budget, fish body composition and economic performance in 10 experimental ponds stocked with 3 yr old carp at a density of 363 fish ha −1 over a 4 mo period. The type of supplementary feed had no significant influence on water variables, with the exception of lowphosphorus pelleted feed which increased conductivity (p < 0.05). No significant differences were observed in zooplankton density. Harvested fish had significantly (p < 0.05) higher dry matter content and considerably higher phosphorus content under all treatments compared with fish at the beginning of the experiment. The use of cereals and extruded feed improved carp growth, while the physical qualities of the feed (higher resistance to nutrient leaching) resulted in lower nutrient concentrations in effluent water. Profitability was increased with application of cereal grains and decreased with all pelleted and extruded feeds. Hence, the use of cereal grain feed generated higher economic and environmental benefits than selected pelleted and extruded feed.

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Section: Discussioncontrasting

confidence: 56%

Compound feeds and cereals as potential tools for improved carp Cyprinus carpio production

Hlaváč¹,

Másílko²,

Antón-Pardo³

et al. 2016

Aquacult. Environ. Interact.

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“…According to Nwanna et al (2009) Calcium and Phosphorus make up 70% of the total mineral elements in the body and are essential for the formation of bone, energy transfer through adenosine triphosphate (ATP) and an essential component of buffer systems in the blood. McDowell (1992) noted that Phosphorus is involved in the control of appetite, weight and feed efficiency while Waldroup, (1999) asserted that inadequate supply of Phosphorus may lead to severe consequences in terms of reduced performance, excessive mortality, and reduction in carcass quality.…”

Section: Introductionmentioning

confidence: 99%

GROWTH AND ECONOMIC PERFORMANCE OF Clarias gariepinus FED DIFFERENT SOURCES OF CALCIUM AND PHOSPHORUS DIETS

Lawal

2013

J FisheriesSciences.com

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One hundred and fifty juveniles of Clarias gariepinus of mean weight 53 g were stocked randomly at seven fish per tank (52.5 X 33.5 X 21 cm 3 ) in triplicate. Seven experimental diets were formulated with varied inclusion levels of calcium and phosphorus sources; Diet 1 (1 % DCP and 1% Egg shell), Diet 2 (2% DCP), Diet 3 (2% Egg shell), Diet 4 (1% Bone meal and 1% Oyster shell), Diet 5 (1% Egg shell and 1% Bone meal), Diet 6 (0.5% Egg shell, 1% Bone meal and 0.5% Oyster shell) and Diet 7 had no extra calcium or phosphorus source. The mean weight gain, MWG and specific growth rate, SGR of the result showed significant difference (P < 0.05) across the test treatments. Diet 2 showed the highest MWG and SGR (63.5 g and 2.13 %/day respectively), it also showed highest value for protein intake (23.09) while Diet 4 had the best values for protein efficiency ratio (3.01) and feed conversion ratio (0.96). Diet 2 (2% DCP) recorded remarkable significant different (p < 0.05) values for the net profit value, investment cost analysis and gross profit for the tested economic indices compared to other diets. Therefore, results from the study suggest 2% inclusion level of DCP as optimum requirement for the growth of C. gariepinus.Journal abbreviation: J FisheriesSciences.com Özet: Farkli Kaynaklı Kalsiyum ve Fosfor Diyetleriyle Beslenen Clarias gariepinus' un Büyüme ve Ekonomik PerformansıOrtalama ağırlığı 53 g olan 150 genç Clarias gariepinus rastgele olarak üç tekrarlı ve her tankta (52.5 X 33.5 X 21 cm 3 ) 7 balık olacak şekilde stoklandı. Yedi deneysel diyet kalsiyum ve fosfor kaynaklarının değişik içerikli seviyeleriyle formüle edildi. Bunlar; Diyet 1 (% 1 dikalsiyumfosfat ve % 1 yumurta kabuğu), Diyet 2 (% 2 dikalsiyumfosfat), Diyet 3 (% 2 yumurta kabuğu), Diyet 4 (% 1 kemik unu ve % 1 istiridye kabuğu), Diyet 5 (% 1 yumurta kabuğu ve % 1 kemik unu), Diyet 6 (% 0.5 yumurta kabuğu, % 1 kemik unu ve % 0.5 istiridye kabuğu) ve Diyet 7 herhangi bir kalsiyum yada fosfor kaynağına sahip olmayan diyetlerden oluşmaktadır. Ortalama ağırlık artışı (OAA) ve spesifik büyüme oranı (SBO) sonuçları test deneyleri karşısında belirli bir farklılık (p<0.05) gösterdi. Diyet 2 en yüksek OAA ve SBO gösterdi (63.5 ve %2.13 /gün sırasıyla). Diğer yandan Diyet 4 en iyi protein yeterlilik oranı (3.01) ve yem dönüşüm oranına (0.96) sahipken Diyet 2 ayrıca protein alımı için en yüksek değeri (23.09) gösterdi. Diyet 2 (% 2 dikalsiyumfosfat) diğer diyetlerle karşılaştırılarak test edilen ekonomik endeksler içinde net kar değeri, yatırım maliyet analizi ve brüt kar için dikkat çekici belirli farklılık (p<0.05) kaydedilmiştir. Bu nedenle, çalışmadan elde edilen sonuçlar C. gariepinus' un büyümesi için optimum ihtiyaç duyulan miktar olarak dikalsiyumfosfat' ın % 2 civarlarındaki seviyesi önerilmektedir.

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“…Moreover, diets with high P content negatively affect Mg absorption (Schamber et al 2014). This negative effect may be related to the physiological saturation of the Ca and P transporter in the brush border membrane, leading to an excess of these minerals in the form of insoluble complexes in the digestive tract lumen, thereby reducing Mg absorption (Nwanna et al 2009, Araújo et al 2018). In the present study, Mg absorption ranged from 44.87 to 75.50%.…”

Section: Mineral Digestibility Coefficientsmentioning

confidence: 99%

Mineral digestibility of different animal sources for the silver catfish Rhamdia voulezi

Frei

Pessini

Cozer

et al. 2021

Lat. Am. J. Aquat. Res.

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This study aimed to evaluate the apparent digestibility coefficients (ADCs) of dry matter, crude protein, gross energy, and minerals of marine fish meal (MFM), salmon meal (SM), tilapia by-product meal (TBM), meat and bone meal (MBM), poultry by-product meal (PBM), blood meal (BM), and feather meal (FM) by silver catfish Rhamdia voulezi. Groups of 12 fish were fed the experimental diet three times a day until apparent satiation, and the fecal samples were collected from an accumulation device. SM and PBM exhibited the highest digestibility values for dry matter, crude protein, and gross energy, while MBM and FM presented significantly lower ADCs for dry matter. BM and FM exhibited higher ADCs for phosphorus, 65.05 and 63.87%, respectively. The ADCs for calcium were 58.8% for MFM, 56.69% for TBM, and 60.08% for PBM. PBM and FM had the highest iron ADCs, 44.01 and 46.29%, respectively. Magnesium ADCs ranged from 44.87% for MBM to 75.50% for TBM. BM had the highest digestibility for zinc (62.77%), whereas MBM (36.68%) and FM (39.39%) had the lowest. In general, SM and PBM showed higher values as feedstuffs for silver catfish feeds. At the same time, the digestibility was lower for TBM and MBM for macronutrients and minerals such as phosphorus, iron, and zinc.

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Effect of different levels of phosphorus on growth and mineralization in African giant catfish Heterobranchus bidorsalis (Geoffrey Saint Hillarie, 1809

Cited by 6 publications

References 21 publications

Compound feeds and cereals as potential tools for improved carp Cyprinus carpio production

Compound feeds and cereals as potential tools for improved carp Cyprinus carpio production

GROWTH AND ECONOMIC PERFORMANCE OF Clarias gariepinus FED DIFFERENT SOURCES OF CALCIUM AND PHOSPHORUS DIETS

Mineral digestibility of different animal sources for the silver catfish Rhamdia voulezi

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