TY - JOUR
T1 - Intensification of redclaw crayfish Cherax quadricarinatus culture
T2 - II. Growout in a separate cell system
AU - Manor, Rivka
AU - Segev, Ran
AU - Leibovitz, Marcia Pimenta
AU - Aflalo, Eliahu D.
AU - Sagi, Amir
N1 - Funding Information:
This study was supported by a grant from Chief Scientist's Foundation, Ministry of Agriculture, Israel (grant #857-0403-00) and a grant from the ICA Foundation. We would like to thank Inez Mureinik for styling the manuscript, Irith Aloni for statistical analysis, Kobi Avraham, Shaul Shoval and Tal Gur for their technical assistance and Dr Japo Jussila for productive and stimulating scientific discussions.
PY - 2002/11/1
Y1 - 2002/11/1
N2 - In the process of exploring ways to intensify crayfish culture, a growout system of individual cages (cells) was designed to determine the effects of gender and cell size on the growth of the red claw crayfish Cherax quadricarinatus. Cells of three different diameters-large (25 cm), medium (20 cm) and small (16 cm)-were used. When crayfish were stocked at a mean weight of approximately 10 g, growth rate of males was significantly higher than that of females. The growth rate of the males in the large cells was 0.31±0.14 g/day, while that of the females was 0.18±0.09 g/day. The size of the cell had significant influence on the weight of males. Male crayfish in the large and medium cells grew better than those in the small cells. When males were stocked at a higher mean weight (about 23 g), their mean weight after 206 days was higher in the large cells (69.28±15.72 g) than in the small cells (58.11±12.66 g), suggesting that the growth of large males was also affected by cell size. Regardless of cell size, male animals of this species grew faster than females under conditions of individual cells. This intensive culture method appears to present a powerful improvement in yields, by as much as two orders of magnitude, in comparison with communal cultures.
AB - In the process of exploring ways to intensify crayfish culture, a growout system of individual cages (cells) was designed to determine the effects of gender and cell size on the growth of the red claw crayfish Cherax quadricarinatus. Cells of three different diameters-large (25 cm), medium (20 cm) and small (16 cm)-were used. When crayfish were stocked at a mean weight of approximately 10 g, growth rate of males was significantly higher than that of females. The growth rate of the males in the large cells was 0.31±0.14 g/day, while that of the females was 0.18±0.09 g/day. The size of the cell had significant influence on the weight of males. Male crayfish in the large and medium cells grew better than those in the small cells. When males were stocked at a higher mean weight (about 23 g), their mean weight after 206 days was higher in the large cells (69.28±15.72 g) than in the small cells (58.11±12.66 g), suggesting that the growth of large males was also affected by cell size. Regardless of cell size, male animals of this species grew faster than females under conditions of individual cells. This intensive culture method appears to present a powerful improvement in yields, by as much as two orders of magnitude, in comparison with communal cultures.
KW - Cherax quadricarinatus
KW - Crayfish
KW - Growth
KW - Individual cell
KW - Intensive culture
KW - Red claw
UR - http://www.scopus.com/inward/record.url?scp=0036829369&partnerID=8YFLogxK
U2 - 10.1016/S0144-8609(02)00035-3
DO - 10.1016/S0144-8609(02)00035-3
M3 - Article
AN - SCOPUS:0036829369
SN - 0144-8609
VL - 26
SP - 263
EP - 276
JO - Aquacultural Engineering
JF - Aquacultural Engineering
IS - 4
ER -