Effect of feeding various levels of poultry by-product meal on the blood parameters, filet composition and structure of female tenches (Tinca tinca)
PBN-AR
Instytucja
Wydział Nauk o Żywności i Rybactwa (Zachodniopomorski Uniwersytet Technologiczny w Szczecinie)
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
AQUACULTURE RESEARCH (30pkt w roku publikacji)
ISSN
1355-557X
EISSN
1365-2109
Wydawca
WILEY-BLACKWELL
DOI
URL
Rok publikacji
2017
Numer zeszytu
10
Strony od-do
5373-5384
Numer tomu
48
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
angielski
fatty acids
filet composition
plasma biochemistry
practical diet
sensory analysis
Tinca tinca
Streszczenia
Język
angielski
Treść
Homogeneous background (age, sex, genetic lineage, culture conditions) was created to clearly demonstrate the impact of the tested dietary treatments. No feeds optimized for the rearing of the tench (Tinca tinca L. 1758) are available. Feeds are formulated to increase the growth rate or eliminate skeletal deformations. With the increasing prices of the basic components, fish meal (FM) and fish oil, poultry by-product meal (PBM) can be used. The aim of the study was to evaluate the effects of substitution of FM with PBM on the tench blood parameters, body composition and structure of skeletal muscles. Cage-reared female tenches (325 ± 18 g) were fed for 86 days with five types of feeds with 0% (control), 25.7%, 48.6%, 71.4% and 100% substitution of FM with PBM. No significant differences between the formulations were reported for weight, total length, fillet weight, visceral, liver, gonado-somatic, proximate composition and biochemical blood parameters. However, significant differences were found in the fillet profiles of fatty acids—an increase in the PBM content correlated with an increase in saturated and monounsaturated fatty acids and a decrease in n-3 PUFA and, generally, n-6 PUFA. Significant differences were also observed in, for example, the content of intramuscular fatty tissue and the level of organ lipidosis between the control variant (0% PBM) and that with 100% substitution. A sensory assessment indicated a higher gustatory value of the fillets in the case of feeds with 48.6% and 71.4% substitution.
Inne
System-identifier
PX-59b90f76d5de651ba3e5c066
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