EFFECT OF AFRICAN BASIL (Ocimum gratissimum) ON OREXIGENIC FACTORS AND ZOOTECHNICAL PERFORMANCE OF AFRICAN CATFISH (Clarias gariepinus)

Appetite and food intake in fish is not only affected by external factors but also endogenous factors such as the hypothalamus which is the hub controlling appetite, energy balance and integration of peripheral signals related to appetite, feed intake, digestion and metabolism. African basil, Ocimmum gratissimum leaf is proven to improve food palatability and stimulate appetite through its characteristic aroma. In this study, the effects of African basil Ocimmum gratissimum leafmeal on orexigenic factors and zootechnical performance in African catfish Clarias gariepinus diet was assessed for a period of 56 days. Six isonitrogenous diets were formulated at different inclusion levels of Ocimmum gratissimum leaves at 0 mg/g, 10 mg/g, 20 mg/g, 30mg/g, 40 mg/g, 50 mg/g denoted as T1, T2, T3, T4, T5 and T6 respectively. C. gariepinus fingerlings (2.57±0.37g) were randomly divided into the replicates of six treatments group. The test fish were randomly distributed into 18 plastic tanks with the dimension of 40×30×35 (cm)³ at the stocking density of 10 fish per tank. After the feeding trials, histology of orexigenic factors, growth performance and nutrient utilisation parameters were assessed. C. gariepinus fingerlings fed 30mg/g diet of O. gratissimum recorded the best growth performance in terms of feed intake, body weight gain, feed conversion ratio (FCR) and specific growth rate (SGR). There was a significant increase (pC. gariepinus fingerlings with increasing inclusion of O. gratissimum leaves (PC. gariepinus. This study therefore confirmed the endogenous and physiological benefits of O. gratissimum on the the appetite and zootechnical performance of C. gariepinus. Keywords: Appetite, aquafeed, digestion, fish farming, growth, physiology. Title: EFFECT OF AFRICAN BASIL (Ocimum gratissimum) ON OREXIGENIC FACTORS AND ZOOTECHNICAL PERFORMANCE OF AFRICAN CATFISH (Clarias gariepinus) Author: Oluyemi Gbadamosi, Ojo P. Oke, T. S Olayeni International Journal of Recent Research in Life Sciences (IJRRLS) ISSN 2349-7823 Vol. 9, Issue 3, July 2022 - September 2022 Page No: 1-8 Paper Publications Website: www.paperpublications.org Published Date: 19-July-2022 DOI: https://doi.org/10.5281/zenodo.6861555 Paper Download Link (Source) https://www.paperpublications.org/upload/book/EFFECT%20OF%20AFRICAN%20BASIL-19072022-9.pdf
International Journal of Recent Research in Life Sciences (IJRRLS), ISSN 2349-7823, Paper Publications, Website: www.paperpublications.org
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