Effect of dietary protein, lipid and androgen (11 - ketotestosterone) levels on the progeny of Oreochromis andersonii (castelnau, 1861) broodstock

Abstract: 
The study on the effect of dietary protein, lipid and 11 – Ketotestosterone (11 – KT) levels on the progeny quality of Oreochromis andersonii broodstock will be conducted at National Aquaculture Research and Development Centre, Kitwe, Zambia. Factorial experiments will be set in order to investigate the effect of lipid (5%, 10% and 15%) and protein (20%, 30%, and 40%) from soybeans on the reproduction of O. andersonii. Furthermore, effect of 11 – KT (30, 60 and 90mg/kg of feed) will be investigated on progeny quality, sex ratios and hormone degradation. Optimal lipid, protein and 11 – KT levels that can be incorporated into the broodstock and fry diets of O. andersonii will be known by the end of the study.
L’étude sur l’effet des niveaux des protéines, des lipides et de 11 - Ketotestostérone (11 - KT) alimentaires sur la qualité de la descendance des géniteurs Oreochromis andersonii sera effectuée au centre national de développement et de la recherche en aquaculture, à Kitwe, en Zambie. Les tests factoriels seront établis afin d’étudier l’effet des lipides (5%, 10% et 15%) et des protéines (20%, 30% et 40%) de graines de soja sur la reproduction de O. andersonii. En outre, l’effet de 11 - KT (30, 60 et 90 mg / kg d’aliment) sera étudié sur la qualité de la descendance, les rapports de sexe et de la dégradation hormonale. Les niveaux optimaux des lipides, de protéines et de 11 - KT qui peuvent être incorporés dans les géniteurs et les régimes alimentaires des alevins de O. andersonii seront connus d’ici la fin de l’étude.
Language: 
Date of publication: 
2010
Country: 
Region Focus: 
Southern Africa
Collection: 
RUFORUM Conferences and Workshops
Licence conditions: 
Open Access
Access restriction: 
Form: 
Printed resource
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ISSN: 
E_ISSN: 
Edition: 
Extent: 
1409-1412
Notes: 

"The 2010 RUFORUM Biennial Conference was the second in the series. The main objective of the Biennial conferences is to provide a platform for agricultural research for development stakeholders in Africa and beyond to actively exchange findings and experiences, while at the same time learning lessons towards improving performance of the agricultural sector and ultimately people’s livelihoods. The biennial conference is RUFORUM’s most comprehensive meeting for the diversity of stakeholers in agriculture. It is especially dedicated to graduate students and their supervisors, grantees in RUFORUM member universities and alumni. It is a platform for peer review, quality control, mentorship, networking and shared learning. This record contains an extended abstract accepted under the theme soil science and water management".