Banca de DEFESA: CRISTIANE SARTURI

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : CRISTIANE SARTURI
DATA : 27/03/2019
HORA: 09:00
LOCAL: ANFITEATRO DO INSTITUTO DE ZOOTECNIA DA UFRRJ
TÍTULO:

Polyculture between tilapia of the Nile and tadpoles of bullfrog. 

PALAVRAS-CHAVES:

growth, proximal composition, fish farming, frog farming.

PÁGINAS: 37
GRANDE ÁREA: Ciências Agrárias
ÁREA: Zootecnia
SUBÁREA: Produção Animal
RESUMO:

The increasing demand for fish resources has been rising the production in the aquaculture sector in the last decades. According to United Nations Food and Agriculture Organization (FAO), Brazil is one of the countries with the biggest potential to develop aquaculture. As an alternative to improve the productivity in a farming system, it is possible to apply different animal species in the same environment, or the polyculture. Thus, the aim of this work was to evaluate the zoothechnical performance of two different species of aquatic organisms (psiculture and raniculture) testing different densities for polyculture. For this, two experiments were performed in order to test the best stocking densities according to the size of the animals. The experiments were developed in an entirely randomized delimitation, with five treatments and four repetitions (in the first experiment) and four treatments and four repetitions (in the second experiment). The treatments in the experiment 1 were: monoculture for tilapias (MT), polyculture of 75% tilapias and 25% of tadpoles (P75/25), polyculture for 50% of tilapias and 50% of tadpoles (P50/50), polyculture of 25% of tilapias and 75% of tadpoles (P25/75) and monoculture of tadpoles (MG); in the experiment 2, monoculture of tilapias (MT), polyculture of tilapias 12.5% and tadpoles 87.5% (P12.5/87.5), polyculture for tilapias 25% and tadpoles 75% (P25/75) and monoculture of tadpoles (MG). In the first test, the biomass values and the feed intake did not show significant differences (P>0,05), but mortality rates showed significant differences (P<0,05), the treatments with polyculture showed nearly 100% death rates for tadpoles. In the second test, the values of weight gain did not show significant differences (P>0,05). For feed conversion, the values showed significantly differences between treatments, being that the values showed P12.5/87.5 and MG showed the best feed conversion. The values for specific growth of the tilapias and tadpoles differ significantly, the treatment P25/75 had better growth for tilapias and the treatment P12.5/87.5 has presented the best results for the tadpoles growth.

MEMBROS DA BANCA:
Presidente - 066.467.316-32 - MARCELO MAIA PEREIRA - OUTRO
Externo à Instituição - SILVIA CONCEIÇÃO REIS PEREIRA MELLO - FIPERJ
Externo ao Programa - 1326587 - THIAGO BERNARDES FERNANDES JORGE