RT info:eu-repo/semantics/article
T1 Taurine supplement improved growth performance and digestive capacity of pikeperch larvae
A1 Pérez Pérez, José Antonio
A1 Yanes-Roca, Carlos
A1 Galindo, Ana
A1 Holzer, Astrid S.
A1 Veselý, Lukáš
A1 Policar, Tomas
A1 Rodríguez, Covadonga
K1 digestive enzymes
K1 larval rearing
K1 live feed supplementation
K1 pikeperch
K1 RNA/DNA ratio
K1 taurine
AB Pikeperch (Sander lucioperca) intensive aquaculture development has been sloweddown by high mortality rates (>70%) during larval rearing. The use of taurine duringlarval development in other species has been reported to improve survival as wellas growth. This trial aims to find out whether supplementation of taurine during thelarval stage will benefit pikeperch larval performance and if digestive enzyme production can be promoted. A 21-day trial was carried out, in which taurine live feedenrichment for pikeperch larvae was tested. Overall, growth parameters, such as totallength (TL), myomere height (MH) and eye diameter (ED), were significantly higher,whereas survival between treatments remained equal. Specific activities of digestiveenzymes in the control group were low compared to the taurine group during the first7 days post hatching (dph) but reached the peak values for alkaline proteases, lipaseand pepsin at 14 dph. Taurine supplementation increased specific pepsin, alkaline proteases and lipase activities in early larval stages where larvae presented enhancedlevels of alkaline proteases and pepsin activities at 7 dph, while that of lipase tendedto be higher although not significantly. Such enhancement of enzyme activity canimprove nutrient availability, which has had a direct effect in improving pikeperch larvae growth and development. However, these differences in digestive activity werecompensated at the end of the experimental period (21 dph).
YR 2022
FD 2022
LK http://riull.ull.es/xmlui/handle/915/35430
UL http://riull.ull.es/xmlui/handle/915/35430
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 14-oct-2024