Catfish

Tissue-Specific Genotoxic Effects of Low-Dose Glyphosate-Based Herbicide (Roundup) Exposure in Juvenile Clarias gariepinus

Glyphosate is the most widely used herbicide in the world today and has increased in use as weed resistance has developed. Due to its effectiveness and affordability, “Roundup”, a commercialized formulation of glyphosate, is today the second most widely used herbicide in urban areas and in agriculture. The increased use of glyphosate and glyphosatebased herbicides has led to adverse toxic effects on the environment, animals, and humans, even at low concentrations.
AuthorName(s)
Osemudiamen Anao Edene
Racheal Ebunoluwa Asenuga

Optimum Dietary Crude Protein and Digestible Energy Requirements of Clariid catfish Clarias gariepinus (Burchell, 1822) Fingerlings in the Tropics

This study determined the optimum protein and digestible energy levels for Clarias gariepinus fingerlings fed local feed. Sixteen diets of four digestible energy (DE) level (2400, 2600, 2800 and 3000 Kcal/Kg) each at four crude proteins (CP) levels (25, 30, 35 and 40%) were formulated and fed to the fingerlings for 70days. The result showed that the highest final weight of fish (34.24g) was obtained in the 35 %CP (DE of 2400 kcal/kg).

AuthorName(s)
Aliu, Bayo Samuel*
Olomu
Julius Mark

Controlled reproduction in African catfish Clarias gariepinus

This breeding experiment is divided into three trial groups. The first trial group consist of 2 males and 3 females Clarias gariepinus which were injected with a calculated amount of synthetic hormone (Human chronic Gonadotropin) according to their measured weight. In the second trial group, there are also 2 females and 3 females C. gariepinus which were injected with a calculated amount of natural hormone (Pituitary extract). The third trial group consist of 2 males and 3 females C. gariepinus which were not injected with anything and therefore serves as control.

AuthorName(s)
A. H. Bichi
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