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Register a new userالتقصي عن الإصابة ببعض انواع الاوالي الطفيلية الداخلية عند أسماك الكارب العادي Cyprinus carpio في مزرعة السن
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Tishreen University رسالة ماجستير
Publication date
2014
fields
Agricultural Engineering
and research's language is
العربية
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التقصي عن الإصابة ببعض انواع الأوالي الطفيلية الداخلية عند أسماك الكارب العادي Cyprinus carpio في مزرعة السن
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References used
زريقة سميرة سعد .أمراض أسماك المياه العذبة المنظمة العربية للتنمية الزراعية ( الدورة التدريبية لاستزراع الأسمالك في المياه العذبة ) الخرطوم السودان
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This research aimed to study the effect of adding different rates of lysine on the weight and
growth of common carp fingerlings. The experiment was carried out in the laboratory for 4
months using eight glass containers (40 liters each) with four t
reatments (L0 no Lysine
addition, L1 (2%), L2 (3%), L3(4%) of the total weight of diet. Eight common carp
fingerlings (average of tall 7.5cm ± 0.05 and average of weight 12.25g ± 0.57) were
cultured in each container with Oxygen pumps and filters.
Results showed by growth rate, absolute growth rate, specific growth rate and food
conversion ratio (FCR) that the treatment L1 (2% lysine) was significantly the best
comparing to the other treatments, where FCR was (2.2) and the specific growth ratio was
(0.28 %)
The study was conducted at the Breeding and fish diseases
Laboratory - College of Veterinary Medicine were used drug
substance ivermectin concentration of 1% - 50 μg/ kg on the
normal Carps.
This study aimed to investigate the effect of frozen live food (Daphnia magna) and artificial diets on growth performance, feed conversion ratio and survival of Cyprinus carpio fry reared in 25-liter glass aquaria. Duplicate groups of fry were fed o
n the tested diets three times a day to satiation for 21 days.
The results revealed that the growth rates (weight gain, % weight gain) were significantly (P<0.05) affected by the used diets. Fry fed on the frozen live food showed the worst growth rates, even their feed conversion ratio expressed the lowest value compared with the results obtained from fry fed on the artificial diets, although survival was not significantly (P>0.05) affected with the different diets. No significant differences (P>0.05) were noticed in the results obtained from fry fed on the different artificial diets.
The study was conducted in a fish laboratory in the college of
veterinary medicine during the period between the months of
March and September. The experiments of this study were
performed in laboratory conditions. Five dosage levels of
Ivermectin were administered.
A total of 30 water samples and 45 infected fish (carp, Cyprinus carpio) were
collected from freshwater fish farm (Dam of 16 Tishreen-Lattakia) and
analysed bacteriological. Macroscopic examinations of infected fish had showed
the presence of haem
orrhagic skin lesions with brown or red spots throughout
their skin. A total of 64 Aeromonas strains were isolated. The Aeromonas
isolates were distributed as follows: Aeromonas hydrophila (34, 53%), A. caviae
(16, 25%), A. sobria (9, 14%) and (5, 8%) of unidentified aeromonads.
Collectively, Aeromonas spp. are considered as opportunistic causative agents
of human gastroenteritis and other infections. Antibiotic susceptibility tests
were carried on all strains of isolated Aeromonas spp. using twenty different
antibiotics by agar disk diffusion method.
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