Can canola meal and soybean meal be used as major dietary protein sources for kuruma shrimp, Marsupenaeus japonicus?
A feeding trial was conducted to utilize canola meal and soybean meal as major dietary protein sources for kuruma shrimp, Marsupenaeus japonicus. Four isocaloric diets (19 kJ g−1) were formulated by reducing 0 (FM40), 70 (FM12), 85 (FM6) and 100% (FM0) of dietary fishmeal with a combination (4:6)...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Elsevier B.V.
2016
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/48300/ http://irep.iium.edu.my/48300/ http://irep.iium.edu.my/48300/ http://irep.iium.edu.my/48300/1/kader_aquaculture_pdf_file_canola_meal.pdf http://irep.iium.edu.my/48300/4/48300_Can%20canola%20meal%20and%20soybean_SCOPUS.pdf |
| Summary: | A feeding trial was conducted to utilize canola meal and soybean meal as major dietary protein sources for
kuruma shrimp, Marsupenaeus japonicus. Four isocaloric diets (19 kJ g−1) were formulated by reducing 0
(FM40), 70 (FM12), 85 (FM6) and 100% (FM0) of dietary fishmeal with a combination (4:6) of canola meal
and soybean meal (blend). Based on a series of previous studies, all the plant protein diets (FM12, FM6 and
FM0) were supplemented with 1.00% lysine, 0.50% methionine, 0.04% phytase and varying levels of fish soluble
to improve the nutritional quality of the diets. Fifteen shrimp with an initial average weight of 1.74 g were randomly
stocked in 12, 54 l rectangular tanks in triplicate per dietary treatments. The shrimpwere given the respective
test diets daily by hand at 8–10% of body weight for 60 days. Final bodyweight (g) and specific growth rate (%
day−1) were not significantly (P N 0.05) affected by reducing fishmeal with plant protein blend. Feed intake was
also not varied among the dietary treatments. On the other hand, feed conversion ratio was significantly
(P b 0.05) increased in the FM0 group, while no difference was found among the rests. Protein efficiency ratio
had an opposite trend and the FM0 group demonstrated significantly lowest value. Similarly, protein gain
(g kg weight gain−1) and protein retention (%) were significantly decreased in the FM0 group. Dietary treatments
had no negative effects (P N 0.05) on the whole body composition. Significant effect was also not found
on the protease activity (unit mg−1 protein) in the digestive tract of shrimp fed the FM40, FM12 and FM6
diets, while the value was significantly decreased in shrimp fed the FM0 diet. The values for the total hemocyte
count (cells ml−1) and viable cells (%)were lowest in the FM0 group, however these parameterswere not significantly
varied among the dietary treatments. Upon considering the results obtained in the present experimental
condition, it has been concluded that canolameal and soybean meal could be effectively utilized as major protein
sources by kuruma shrimp. The dietary fishmeal could be reduced to only 6% (85% replacement) with a blend of
canola meal and soybean meal, and supplementation of methionine, lysine, phytase and fish soluble without
compromising growth, feed utilization, body composition and health of juvenile kuruma shrimp. |
|---|