International Journal of Fisheries and Aquatic Research

Authors
Ibrahim J Z, Maradun H F, Ekundayo T, Abdullahi B U, Mohammed Y S

Abstract
Study on hatching rate of Clarias gariepinus eggs on different substrates was carried out at the hatchery section of the National Institute for Freshwater Fisheries Research New Bussa, Nigeria. The experimental broodstocks consisted of 6 females and 3 males and they were sourced locally. The substrates for the study were spawning mat, spawning net with sieve, and Kakaban; and they were assigned into three treatments, each replicated three times in a completely randomized design; spawning mat was labelled as T1, spawning net with sieve as T2, and Kakaban was labelled as T3. The result of the experiment showed significant difference with respect to Fertilization and hatching rate with highest value obtained for T1 (79.33±4.04), (76.00±5.29) and T2 (72.00±3.61), (66.33±8.08) respectively compared to T3 (62.00±7.21), (57.33±2.52). However, no significant difference was observed with respect to growth performance between the treatments. Based on the findings of this study therefore, spawning mat is recommended to be the best artificial substrate for incubation of C. gariepinus eggs.