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Trends in Applied Sciences Research

Year: 2019 | Volume: 14 | Issue: 4 | Page No.: 271-277
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Authors

Ofonime Edet Afia

Gift Samuel David

Gift Samuel David

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Research Article

Haematology of Hybrid Catfish (Heteroclarias): Effect of Stocking Densities and Feeding Levels

Ofonime Edet Afia and Gift Samuel David Gift Samuel David's LiveDNA
Background and Objective: Fish haematology is gaining increasing importance in fish culture because of its importance in monitoring the health status of fish. The present study compared different stocking densities and its effect on the blood parameters of hybrid catfish (Heteroclarias) when they are fed at 1 and 2% body weight, respectively. Materials and Methods: The experiment lasted 12 months using 30 tarpaulin tanks of 1 m3 volume. The study was designed to have five different stocking densities, T1 = 100 fish/m2, T2 = 75 fish/m2, T3 = 38 fish/m2, T4 = 18 fish/m2 and T5 = 9 fish/m2 and two feeding levels, 1 and 2% body weight as treatments. These were replicated 3 times. The fish was fed three times daily using commercial feed at 1.0 and 2.0% body weight, respectively. The feed was adjusted monthly with increase in body weight. Blood profile was determined using 5-part differential Haematology Auto-analyzer (Mindray BC 5300 model). Results: At 1.0%, white blood cells count, haemoglobin concentration, mean corpuscular volume, mean corpuscular haemoglobin and mean corpuscular haemoglobin concentration were insignificant (p>0.05) for T1-T5. Red blood cells count and packed cell volume however showed significant variation (p<0.05) across treatments. At 2.0%, there was significance (p>0.05) in only mean corpuscular haemoglobin, all other blood parameters showed no significance (p>0.05) across treatments. Conclusion: Heteroclarias easily adapts to high stocking densities without any serious effect on the health status if adequate measures are put in place during management.
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How to cite this article

Ofonime Edet Afia and Gift Samuel David, 2019. Haematology of Hybrid Catfish (Heteroclarias): Effect of Stocking Densities and Feeding Levels. Trends in Applied Sciences Research, 14: 271-277.

URL: https://scialert.net/abstract/?doi=tasr.2019.271.277

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