Inclusion of different blends of poultry processed proteins in practical diets for African catfish (Clarias gariepinus) reared in RAS: Effects on nutrient digestibility, growth performance and fillet quality
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F24%3A43908417" target="_blank" >RIV/60076658:12520/24:43908417 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.aqrep.2024.102447" target="_blank" >https://doi.org/10.1016/j.aqrep.2024.102447</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.aqrep.2024.102447" target="_blank" >10.1016/j.aqrep.2024.102447</a>
Alternative languages
Result language
angličtina
Original language name
Inclusion of different blends of poultry processed proteins in practical diets for African catfish (Clarias gariepinus) reared in RAS: Effects on nutrient digestibility, growth performance and fillet quality
Original language description
The present study aimed to test the effects of different dietary inclusion levels of fishmeal (F) and blends of poultry processed protein meals (P), i.e. poultry by-product meal, hydrolysed feather meal, dry-blood meal in African catfish (Clarias gariepinus). Fish were fed during 84 days with four practical diets, i.e. diet HF-LP (F: 90 g kg−1; P: 227 g kg−1), diet MF-MP (F: 45 g kg−1; P: 280 g kg−1), diet HF-HP (F: 90 g kg−1; P: 315 g kg−1), and diet LF-HP (F: 10 g kg−1; P: 392 g kg−1). Fish fed diet LF-HP showed the lowest protein and lipid digestibility coefficients (82 % and 92 % vs. 84 % and 94 %, respectively; p<0.05) compared to fish fed the other diets, and the worst performance in terms of final body weight (551 g vs. 673 g), feed intake (247 g d−1 vs. 301 g d−1), condition factor (0.83 vs. 0.86), specific growth rate (2.69 % d−1 vs. 3.14 % d−1), and feed conversion ratio (1.34 vs. 1.11) (p<0.001). Fish fed diet MF-MP reported the highest survival rate compared to other diets (96.8 % vs. 94.5 %; p<0.001). Fish fed diets with the highest inclusion rates of poultry by-product meal (140 g kg−1 or 165 g kg−1) and hydrolysed feather meal (125 g kg−1 or 135 g kg−1) were associated with the lowest fillet yield (46.2 % vs. 47.1 %) respect to fish fed the other diets (p<0.05). In conclusion, a diet with 10 g kg−1 of fishmeal and 392 g kg−1 of a blend of poultry processed animal proteins is not suitable to sustain the performance of African catfish, whereas a diet with a minimum content of fishmeal at 45 g kg−1 and a blend of poultry processed animal proteins at about 280 g kg−1 could be technically and economically attractive for the RAS farming of this species. © 2024 The Authors
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40103 - Fishery
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Aquaculture Reports
ISSN
2352-5134
e-ISSN
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Volume of the periodical
39
Issue of the periodical within the volume
neuvedeno
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
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UT code for WoS article
001429106300001
EID of the result in the Scopus database
2-s2.0-85207357995