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Pak Vet J, 2011,
31(3):
207-210
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Appropriate Usage Level of Shrimp Waste Meal as Chitin
Source for Feeding Young Crayfish (Astacus
leptodactylus Esch. 1823) |
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Seval Bahadır Koca*,
Nalan Ozgur Yigit, Arife Dulluc, Gonca Erol1, Nihal
Cılbız1 and Ramazan Kucukkara1 |
University of
Süleyman Demirel - Eğirdir
Fisheries Faculty,
32500, Eğirdir - Isparta/Turkey; 1Eğirdir Fisheries
Research Institute, 32500,
Eğirdir-Isparta,
Turkey
*Corresponding author: skoca@sdu.edu.tr;
sevalkoca1@hotmail.com |
Abstract
This study was conducted
to determine effects of shrimp waste meal
as natural chitin
source at different rates (0 (control), 10, 20, 30 and 40% ) on
growth, feed conversion ratio (FCR), survival of young
crayfish (1.61±0.04 g and 3.74±0.03 cm) for 60 days. Fifteen glass aquariums (70x30x40
cm) were used in the experiment and 20 individuals were stocked per
aquarium (95/m2).
The
highest of
final weight and weight gain
were obtained
in feed with 10% shrimp waste meal group (3.29±0.23
and 1.66±0.23
g), while the lowest of final weight and weight gain was obtained in
fed with 40% shrimp waste meal group (2.75±0.35 and 1.18±0.37
g), respectively. However, non-significant
differences were found between
final weight, weight gain, specific growth rate,
final total length, feed conversion ratio, survival percentage among
groups at the end of experimental period. It
was concluded that shrimp waste meal as natural chitin source can be used in
young crayfish diets up to 40% without adverse effect influence on growth.
Key words:
Chitin;
Crayfish;
Growth;
Shrimp Waste Meal
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ISSN 0253-8318 (Print) ISSN 2074-7764 (Online)
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