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Master's Dissertation
DOI
10.11606/D.74.2009.tde-13042009-091204
Document
Author
Full name
Lucas Domênico Elmôr
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Pirassununga, 2009
Supervisor
Committee
Costa, Ernane José Xavier (President)
Del Claro, Gustavo Ribeiro
Titto, Evaldo Antônio Lencioni
Title in Portuguese
Suplementação de triptofano na atividade elétrica cerebral (EEG) e glicemia de cães da raça Pit Bull
Keywords in Portuguese
Curva glicêmica
Estresse
Nutrição de cães
Processamento digital de sinais
Abstract in Portuguese
Três cães machos adultos da raça Pit Bull foram utilizados com o intuito de avaliar o efeito da suplementação de triptofano na atividade elétrica cerebral e taxa glicêmica. Os tratamentos foram: A) Dieta base + veículo com placebo (controle); B) Dieta base + veículo com 1,11g de triptofano. Inicialmente os animais passaram por doze dias de fornecimento do tratamento A, destes, cinco dias foram destinados a colheita dos dados. Após três dias de descanso teve início o período de 12 dias de fornecimento do tratamento B, com o aumento de um dia de colheita. Para a colheita de EEG foi utilizado o registro bipolar, sendo o sinal colhido numa freqüência de amostragem de 120 Hz por um período de 20 minutos por dia de colheita. Utilizou-se um glicosímetro portátil para mensurar a glicemia nos tempos 0, 15, 30, 45 minutos, relacionados com o período destinado ao manejo de colheita de EEG. A suplementação de triptofano diminuiu a energia das bandas de freqüências beta, teta, alfa e delta, permitindo sugerir uma modificação na atividade elétrica cerebral. Não houve efeito significativo do fornecimento de triptofano suplementar sobre a glicemia dos cães utilizados neste experimento.
Title in English
Tryptophan supplementation on brain electrical activity and blood glucose in Pit Bulls
Keywords in English
Digital signals processing
Dog nutrition
Glicemic curve
Stress
Abstract in English
Three adults male Pit Bulls dogs were housed with the intention of evaluating the effects of tryptophan supplementation on brain electrical activity and glicemic curve. The treatments were: A) Basic Diet + Placebo (control); B) Basic Diet + 1,11 g of tryptophan. First the animals were kept for 12 days using the A treatment, with five days of data collecting. After three days off they were kept for 12 days using the B treatment, but with an addition of one day of data collecting. The EEG collecting was made using a bipolar register, and the signal was collected on a 120 Hz sampling frequency for 20 minutes per collecting day. The blood glucose was measured using a portable blood glucose meter on 0, 15, 30 and 45 minutes, related to the EEG collecting period. The Tryptophan supplementation decreased the energy signals of the beta, theta, alpha and delta frequencies, which suggests some modification on the brain electrical activity. There was no effect of the tryptophan supplementation on the glicemic curve.
 
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3759200ME.pdf (1.88 Mbytes)
Publishing Date
2009-04-14
 
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