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العنوان
Effect of Dietary Enhancement Wiyh Some Crucstaceans on The Reproductive Efficiency and Larval Quality in European Sea Bass (Dicentrarchus Labrax)(Linnaeus, 1958) /
المؤلف
Youssef, Mohamed Mahmoud Alattafy.
هيئة الاعداد
باحث / محمد محمود العطافى يوسف
مشرف / محمد حسن منا
مشرف / منى مبروك الجمل
مشرف / محمد محمود عبد ارحيم
مشرف / لا يوجد
الموضوع
Zoology
تاريخ النشر
2017.
عدد الصفحات
p 146. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
علم الحيوان والطب البيطري
تاريخ الإجازة
17/12/2017
مكان الإجازة
جامعة طنطا - كلية العلوم * - علم الحيوان
الفهرس
Only 14 pages are availabe for public view

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from 173

Abstract

Egypt marine aquaculture still in the beginning due to lack of two major keys, marine hatcheries and larvae aqua feeds development and bad policies. European Seabass (Dicentrarchus labrax) is one of the most valuable cultured species in Mediterranean countries but yet still not well developed in Egypt. Several challenges are facing Egypt marine aquaculture development to be sustainable industry or just begin to be an industry (the lack of fry with good quality). Marine hatcheries around the world become seed factories but Egypt marine hatcheries still less developed; this is not only because of facilities and equipment shortage and misplaced but also due to less developed protocols and management. Thus the present work aimed to study some factors affecting European seabass larvae production from marine hatcheries as small step on the way to marine fish reproduction and larvae rearing development. Several experiments had been designed to carry out this thesis Experiment 1:Broodstock and Rearing Condition Seabass (Dicentrarchus labrax) broodstock were fed with three experimental diets as follows: (1) basal diet (BD, commercial
broodstock diet, Zoo-control®, Egypt), (2) Palaemon supplemented diet (PSD, 7.5% Palaemon elegans biomass) and (3) Artemia supplemented diet (ASD, 2.5% Artemia salina, biomass) for 42 days. Females’ broodstock were injected intramuscularly into the base of the lateral fin with LHRHa hormone at a dose of 15 μg kg-1 of body weight