Nile Tilapia, Oreochromis niloticus, Productive Performance and Carcass Characteristics as Related to Food Management
Titel:
Nile Tilapia, Oreochromis niloticus, Productive Performance and Carcass Characteristics as Related to Food Management
Auteur:
Baccarin, Ana Eliza Camargo, Antonio Fernando Monteiro
Verschenen in:
Journal of applied aquaculture
Paginering:
Jaargang 16 (2004) nr. 1-2 pagina's 125-135
Jaar:
2004-12-22
Inhoud:
Male juveniles of Nile tilapia, Oreochromis niloticus, were stocked in 12, 300-m2 ponds at a density of 1.7 fish/m2 to evaluate the effects of different food management methods (natural foods and diets in pellet, floating or minced form) on fish production and carcass characteristics. Water quality variablesmonitored during the period were within acceptable levels for the species. Total fish production was significantly different (P < 0.05) and the highest values were obtained with diets in pellet (5,997 kg/ha) and floating (5,441 kg/ha) form. The fish fed diets had higher contents of body fat (1.57 to 1.98%) and visceral fat (12.64 to 25.04%) than fish fed natural food, which had levels between 0.17 and 0%, respectively. Natural food treatment yielded lower fish production and fish with lower body fat, while treatments that yielded higher fish production (rations) higher percentage of visceral fat.
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