Banca de DEFESA: LUIZ RODRIGO MOTA VICENTE
Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.DISCENTE : LUIZ RODRIGO MOTA VICENTE
DATA : 04/05/2018
HORA: 09:00
LOCAL: Campus Araquari Sala D-304
TÍTULO:
Sanitary, environmental and zootechnical characterization of cultivated Nile tilapia in different systems at the Tubarão region – SC
PALAVRAS-CHAVES:
Fish culture; suine manure; hematological characterization; trichodyne; monogenea
PÁGINAS: 56
GRANDE ÁREA: Ciências Agrárias
ÁREA: Medicina Veterinária
SUBÁREA: Medicina Veterinária Preventiva
ESPECIALIDADE: Saúde Animal (Programas Sanitários)
RESUMO:
This work evaluated the water physical chemical parameters, ectoparasite prevalence, haematological characterization and zootechnical performance of cultivated Nile tilapia (O. niloticus), in three different systems in the Tubarão region - SC. A total of 149,360 tilapia were distributed in nine pounds in 46,710 m2 area. The cultivation systems evaluated were: System 1: integrated with swine (using the total manure), System 2: swine integrated (using the solid manure) and System 3: without integration with swine breeding (extensive cultivation). The initial cultivation mean densities were 3.05 ± 0.11; 3.59 ± 0.47 and 1.09 ± 0.54 fishes m-2 in the systems 1, 2 and 3, respectivaly. Hematological and parasitological analyzes were performed in 90 specimens per treatment (cultivation system), totaling 270 fish. The temperature, dissolved oxygen, pH, alkalinity, total sulphide and total iron did not present a significant difference (p>0.05) between the cultivation systems. Nitrogen compounds (ammonia, N-nitrite, N-nitrate) were significantly lower in the extensive system (p<0.05). Silica and phenol were higher in the total manure system (p<0.05). The prevalence of trichodyne and monogenea was higher in the fish gills at the solid manure and total manure system, respectively (p<0.05). No changes were observed in the hematocrit, erythrocytes, basophils, eosinophils and CGE mean between the systems (p>0.05). Neutrophils were present in a greater number (p<0.05) in the extensive system. Thrombocytes, lymphocytes and monocytes were present in less number in the total manure system (p<0.05). The final weight, mean productivity and survival rate were lower in the extensive system (p<0.05). There was no difference in daily weight gain between the cultivations. The solid manure system showed a moderate infestation of ectoparasites, not compromising the haematological parameters, obtaining the best zootechnical indexes, becoming in this way, and the most efficient from the environmental and zootechnical point of view for the Tubarão region.
MEMBROS DA BANCA:
Presidente - 1830781 - ADOLFO JATOBA MEDEIROS BEZERRA
Externo ao Programa - 1160184 - MAURICIO LENHMANN
Externo à Instituição - FELIPE DO NASCIMENTO VIEIRA - UFSC