Strand, Åsa
- Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
Sammanfattning
As aquaculture of Eurasian perch (P. fluviatilis) develops, optimizing growth becomes increasingly important. Fish may be stressed by ordinary farming procedures such as handling and cleaning of tanks. This may induce behavioural changes, reduce feed intake, increase energy expenditures and thus reduce growth rates. In order to quantitatively evaluate the effect of disturbance on feed intake, growth rate and energy expenditures of perch, groups of fish were exposed to one of three treatments including control (no disturbance), moderate disturbance (shadows from movements above the tanks) and severe disturbance (shadows from movements above the tanks + simulating cleaning of tanks). Twelve groups were used for each treatment category. Average weight (and SD) of the fish was 39.6 g +/- 14.7. Feed intake and growth rates were registered at two different temperatures (16.6 +/- 0.7 degrees C and 22.7 +/- 1.1 degrees C) and energetic growth efficiency was calculated. Feed intake, growth rates and growth efficiency were significantly reduced by disturbance treatment (P
Nyckelord
Perca fluviatilis; Culture environment; Disturbance; Feed intake; Growth rate; Energetic growth efficiency
Publicerad i
Aquaculture
2007, volym: 265, nummer: 1-4, sidor: 163-168
Utgivare: ELSEVIER SCIENCE BV
SLU författare
Magnhagen, Carin
- Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
- Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
Alanärä, Anders
- Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
- Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
UKÄ forskningsämne
Fisk- och akvakulturforskning
Publikationens identifierare
- DOI: https://doi.org/10.1016/j.aquaculture.2007.01.030
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/15325