000			03023cam a2200349 a 4500
003			EG-GiCUC
005			20250223032557.0
008			200913s2020 ua do f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aPh.D
099			_aCai01.07.03.Ph.D.2020.Am.I
100	0		_aAmany Abdelaal Galal Abdelaal
245	1	0	_aInfluence of local climate and dietary protein level on growth and feed performance of nile tilapia under integrated biofloc and aquaponic conditions / _cAmany Abdelaal Galal Abdelaal ; Supervised Mohamed Elnady Ahmed Mohamed , Mohamed Ali Ibrahim Salem , Neveen Elsayed Metwally
246	1	5	_aتأثير المناخ المحلى و مستوى بروتين العليقة على أداء النمو و التغذية فى البلطى النيلى تحت الظروف التكاملية للبيوفلوك و الأكوابونيك
260			_aCairo : _bAmany Abdelaal Galal Abdelaal , _c2020
300			_a170 P. : _bcharts , photpghrphs ; _c25cm
502			_aThesis (Ph.D.) - Cairo University - Faculty of Agriculture - Department of Animal Production
520			_aThe current experiment was designed to test the effect of crude protein content (25, 30 and 35% C.P.) as well as restricted feeding in biofloc culture on growth performance of Nile tilapia (Oreochromis niloticus),and water quality dynamics and aquaponic production of lettuce plants (red leaves lettuce).Starting with average initial weights of 13.5 to 20.3 grams/fish, Nile tilapia juveniles grew to harvest weight of 310.2 to 342.1 grams/fish. Increasing dietary protein from 30% to 35% within the biofloc treatments did not improve final body weight at harvest. It is recommended to feed Nile tilapia at crude protein level 30% in order to obtain acceptable growth with economic returns. Among the dietary treatments, Nile tilapia had higher FCR with the 25% crude protein treatment (2.23:1) compared to all FCR values obtained by other treatments (1.51 - 1.87). The deterioration in feed conversion ratios in 25% crude protein treatment was due to the slightly slow growth rate of Nile tilapia which was negatively affected by lower protein content. The results of the current study demonstrated that when Juveniles of Nile tilapia were reared in the biofloc tanks, the amount of daily feed inputs can be reduced without affecting the production costs. Aquaponic production of plants included three cycles lettuce production during fall, winter and 2nd summer.The duration of lettuce culture lasted for 30 day during each season
530			_aIssued also as CD
653		4	_aCrude protein
653		4	_aNile tilapia
653		4	_aRestricted feeding
700	0		_aMohamed Ali Ibrahim Salem , _eSupervisor
700	0		_aMohamed Elnady Ahmed Mohamed , _eSupervisor
700	0		_aNeveen Elsayed Metwally , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aShimaa _eCataloger
942			_2ddc _cTH
999			_c77718 _d77718