Data/hora: 20/09/2024 20:58:16

Biblioteca(s): 	Embrapa Amazônia Ocidental; Embrapa Unidades Centrais.	
Data corrente: 	13/07/2007	
Data da última atualização: 	11/11/2019	
Autoria: 	SILVA, A. M. D. da; GOMES, L. de C.; ROUBACH, R.	
Afiliação: 	A.M.D. da Silva, Inpa; LEVY DE CARVALHO GOMES, CPAA; Rodrigo Roubach, Inpa.	
Título: 	Growth, yield, water and effluent quality in ponds with different management during tambaqui juvenile production.	
Ano de publicação: 	2007	
Fonte/Imprenta: 	Pesquisa Agropecuária Brasileira, Brasília, v. 42, n. 5, p. 733-740, maio 2007.	
Idioma: 	Inglês	
Conteúdo: 	The objective of this work was to evaluate the effect of pond management on fish feed, growth, yield, survival, and water and effluent quality, during tambaqui (Colossoma macropomum) juvenile production. Fish were distributed in nine 600 m2 earthen ponds, at a density of 8 fish per m2; the rearing period was 60 days. Three different pond management were applied: limed and fertilized (LimFer), limed (Lim), and natural (Nat). Fish were fed with a commercial ration containing 34% crude protein three times daily. There were no significant differences in fish growth or yield. Three main items found in tambaqui stomach were insect, zooplankton and ration, without a significant difference among treatments in proportion. Alkalinity, hardness, and CO2 were greater in LimFer and Lim ponds. Chlorophyll a, transparency, ammonia, nitrite, temperature, and dissolved oxygen of pond water were not significantly different among treatments. Biochemical oxygen demand, total phosphorus, orthophosphate, ammonia, and nitrite were significantly greater in effluents from LimFer ponds. Pond fertilization should be avoided, because growth and yield were similar among the three pond management systems tested; besides, it produces a more impacting effluent.	
Palavras-Chave: 	growth; yield.	
Thesagro: 	Alimentação; Colossoma Macropomum; Crescimento; Impacto Ambiental; Nutrição; Piscicultura; Produtividade; Tambaqui.	
Thesaurus Nal: 	diet; environmental impact.	
Categoria do assunto: 	--	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/64754/1/PAB4543.pdf
http://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/41065/1/42n05a17.pdf	
Registro original: 	Embrapa Amazônia Ocidental (CPAA)	
Exemplares: 	AI-SEDE - (41065-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS
CPAA - (17690-1) - UPC - AP - PP -  -  -  - DIS