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Consultar: Programa de Ps-Graduao em Zootecnia

Incio > Dissertaes e Teses > Cincias Agrrias > Zootecnia > Programa de Ps-Graduao em Zootecnia

Ttulo [PT]: Relaes entre aminocidos sulfurosos e colina para codornas de corte em crescimento
Autor(es): Daiane de Oliveira Grieser
Palavras-chave [PT]:

Codornas de corte. Coturnix coturnix coturnix. Desempenho zootcnico. Metionina. Cistina. Colina. Exigncia nutricional. Aminocidos sulfurosos. Homocistena. Brasil.
Palavras-chave [EN]:
Cystine. Coturnix coturnix coturnix. Homocysteine. Methionine. Performance. Brazil.
rea de concentrao: Produo Animal
Titulao: Doutor em Zootecnia
Banca:
Antonio Claudio Furlan [Orientador] - UEM
Simara Mrcia Marcato - UEM
Jos Maurcio Gonalves dos Santos - UNICESUMAR
Luciana Kazue Otutumi - UNIPAR
Ricardo Souza Vasconcellos - UEM
Resumo:
Resumo: Foram conduzidos dois experimentos com o objetivo de estimar as exigncias nutricionais de metionina e de cistina, assim como estabelecer a relao entre os aminocidos sulfurosos e determinar o melhor nvel de substituio parcial de metionina digestvel por colina nas dietas de codornas de corte (Coturnix coturnix coturnix) nos perodos de um a 14 e 15 a 35 dias de idade. Foram avaliados o desempenho zootcnico, composio qumica corporal e do fgado, peso dos rgos e partes da carcaa, empenamento, rendimento corporal, parmetros sanguneos e sseos das codornas. No experimento 1, objetivou-se determinar as exigncias nutricionais de metionina digestvel (Metd) e cistina digestvel (Cisd), assim como estabelecer a relao entre os aminocidos sulfurosos no perodo de um a 14 dias (fase inicial) e 15 a 35 dias de idade (fase final de crescimento). Na fase inicial, foram utilizadas 2.400 codornas de corte, no sexadas, distribudas em um delineamento inteiramente ao acaso (DIC), com arranjo fatorial 4x4, sendo quatro nveis de Metd (0,50; 0,62; 0,74 e 0,86%) e quatro nveis de Cisd (0,40; 0,53; 0,66 e 0,79%), totalizando 16 tratamentos, com trs repeties e 50 codornas por unidade experimental. O peso corporal (PC), ganho de peso (GP) e a biomassa corporal acumulada (BCA) foram influenciados de forma quadrtica em funo dos nveis de Metd (PC, P=0,010), (GP, P=0,008), (BCA, 0,002) e Cisd (PC, P=0,080), (GP, P=0,080), (BCA, P=0,069) nas raes. As estimativas para o mximo PC, GP e BCA foram obtidas com raes contendo 0,66% de Metd e 0,59% de Cisd, 0,66% de Metd e 0,60% de Cisd e 0,66% de Metd e 0,54% de Cisd, respectivamente. Para a varivel converso alimentar (CA), houve efeito quadrtico (P=0,007), cuja estimativa da melhor CA foi ao nvel de 0,64% de Metd na rao. Conclui-se que as exigncias de met + cis digestveis e a relao entre Metd:Cisd para o mximo ganho de peso de codornas de corte, foram de 1,26% (0,66% de Metd + 0,60% de Cisd na rao) e 52,38%, respectivamente. Na fase final de crescimento, foram utilizadas 1.680 codornas de corte, criadas at o incio do experimento no sistema convencional, no sexadas, distribudas em um DIC, com arranjo fatorial 4x4, sendo quatro nveis de Metd (0,45; 0,57; 0,69 e 0,81%) e quatro nveis de Cisd (0,35; 0,48; 0,61 e 0,74%), totalizando 16 tratamentos, com trs repeties e 35 codornas por unidade experimental. O PC, GP e BCA foram influenciados de maneira quadrtica em funo do aumento dos nveis de Metd (PC, P=0,067) (GP, P=0,069) (BCA, P=0,087) e Cisd (PC, 0,004) (GP, P=0,002) (BCA, P=0,002) nas raes experimentais. As estimativas para a obteno dos valores mximos de PC, GP e BCA foram obtidas com raes contendo 0,63% de Metd e 0,58% de Cisd. Conclui-se que as exigncias de met + cis digestveis e a relao entre Metd:Cisd para o mximo ganho de peso de codornas de corte, foram de 1,21% (0,63% de Metd + 0,58% de Cisd na rao) e 52,07%, respectivamente. No experimento 2, o objetivo foi determinar o melhor nvel de substituio parcial de Metd por colina (COL) na dieta de codornas de corte no perodo de um a 14 dias (fase inicial) e de 15 a 35 dias de idade (fase final de crescimento). Na fase inicial, foram utilizadas 2.400 codornas de corte, no sexadas, distribudas em um delineamento inteiramente ao acaso, com arranjo fatorial 4x4, sendo quatro nveis de Metd (0,48; 0,54; 0,60 e 0,66%) e quatro nveis de COL (300; 800; 1300 e 1800 mg/kg), totalizando 16 tratamentos, com trs repeties e 50 codornas por unidade experimental. O peso corporal (PC), ganho de peso (GP), biomassa corporal acumulada (BCA) e a converso alimentar (CA) foram influenciados de forma linear em funo dos nveis de Metd (PC, P=0,058) (GP, P=0,050) (BCA, P=0,022) (CA, P=0,019) e COL (PC, P=0,002) (GP, P=0,002) (BCA, P=0,012) (CA, P=0,017) nas raes. Conclui-se que a exigncia de Metd para o mximo desempenho de codornas de corte, foi de no mnimo 0,66% de Metd na rao. Nos nveis de COL suplementados, no foi possvel promover a complementao da exigncia de Metd. Na fase final de crescimento, foram utilizadas 1.680 codornas de corte, no sexadas, criadas no sistema convencional at o incio do perodo experimental, distribudas em um DIC, com arranjo fatorial 4x4, sendo quatro nveis de Metd (0,45; 0,51; 0,57 e 0,63%) e quatro nveis de COL (300; 800; 1300 e 1800 mg/kg), totalizando 16 tratamentos, com trs repeties e 35 codornas por unidade experimental. O PC, GP e BCA foram influenciados de maneira linear em funo do aumento dos nveis de Metd (PC, P=0,014) (GP, P=0,010) (BCA, P=0,013) e COL (PC, P=0,047) (GP, P=0,034) (BCA, P=0,030) nas raes experimentais, ocorrendo interao entre os nveis de Metd e COL, sobre PC (P=0,053), GP (P=0,039) e BCA (P=0,035). Conclui-se que a exigncia de Metd para o mximo desempenho de codornas de corte, foi de no mnimo 0,63% de Metd na rao. Nos nveis de COL suplementados, no foi possvel promover a complementao da exigncia de Metd.

Abstract: Two experiments were conducted with the objective of estimating the nutritional requirements of methionine and cystine, as well as to establish the relationship between the sulfur amino acids and to determine the best level of partial substitution of digestible methionine by choline in the diets of meat-type quails (Coturnix coturnix coturnix) in the periods from 1-14 and 15-35 days old. We evaluated the performance, body chemistry composition and liver composition, organ weights and carcass parts, warping, body yield, blood parameters and bone of birds. Experiment 1 aimed to determine the nutritional requirements of digestible methionine (Metd) and digestible cysteine (Cysd), as well as establish the relationship between the sulfur amino acids in the period from 1 to 14 days (initial phase) and 15 to 35 days old (final phase growth). In the initial phase 2,400 not sexed meat-type quails were distributed in a completely randomized design (DIC), in a 4x4 factorial arrangement, with four Metd levels (0.50, 0.62, 0.74 and 0.86%) and four Cysd levels (0.40, 0.53, 0.66 and 0.79%), totaling 16 treatments with three replicates and 50 quails per experimental unit. The body weight (BW), weight gain (WG) and the accumulated body biomass (ABB) were quadratically affected in function of Metd levels (BW, P=0.010) (WG, P=0.008), (ABB, P=0.002) and Cysd (BW, P=0.080), (WG, P=0.080), (ABB, P=0.069) in the diets. Estimates for the maximum BW, WG and ABB were obtained with diets containing 0.66% of Metd and 0.59% of Cysd, 0.66% of Metd and 0.60% of Cysd and 0.66% of Metd and 0.54% Cysd, respectively. For feed conversion (FC) there was a quadratic effect (P=0.007), estimating the best FC using 0.64% Metd in the diet. It is concluded that the requirements of digestible met + cis and the relationship between Metd:Cysd for maximum weight gain of meat-type quails were 1.26% (0.66% of Metd + 0.60% of Cysd in the diet) and 52.38%, respectively. In the final phase of growth 1,680 meat-type quails raised until the beginning of the experiment in a conventional system, not sexed, The animals were distributed in a completely randomized design, in a 4x4 factorial arrangement, with four Metd levels (0.45, 0.57, 0.69 and 0.81%) and four Cysd levels (0.35, 0.48, 0.61 and 0.74%), totaling 16 treatments, with three replicates and 35 quails per experimental unit. The BW, WG and ABB were quadratically influenced in function of increased Metd levels (BW, P=0.067) (WG, P=0.069) (ABB, P=0.080) and Cysd (BW, P=0.004) (WG, P=0.002) (ABB, P=0.002) in the experimental diets. Estimates for obtaining of the maximum values of BW, WG and ABB were taken with diets containing 0.63% Metd and 0.58% Cysd. It is concluded that the requirements of digestible met + cys and the relationship between Metd: Cysd for maximum performance of meat-type quails were 1.21% (0.63% of Metd + 0.58% of Cysd/kg diet) and 52.07%, respectively. Experiment 2 aimed to determine the best level of partial substitution of Metd by choline (CHO) in diet for meat-type quails in the period from 1 to 14 days (initial phase) and of 15 to 35 days old (final phase of growth). In the initial phase 2,400 not sexed meat-type quails were distributed in a completely randomized design, in a 4x4 factorial arrangement, with four digestible methionine (Metd) levels (0.48, 0.54, 0.60 and 0.66%) and four choline levels (300, 800, 1300 and 1800 mg/kg), totaling 16 treatments with three replicates and 50 quails per experimental unit. The BW, WG, ABB and FC were linearly influenced in function of Metd levels (BW, P=0.058) (WG, P=0.050) (ABB, P=0.022) (FC, P=0.019) and CHO (BW, P=0.002) (WG, P=0,002) (ABB, P=0.012) (FC, P=0.017) in the diets. It is concluded that the requirement of Metd for maximum weight gain of meat-type quails was at least 0.66% of Metd in the diet. In the supplemented levels of CHO, it has not been possible topromote the completion of the Metd requirement. In the final phase of growth 1,680 meat-type quails raised in the conventional system until the beginning of the period experiment, not sexed. The birds were distributed in a completely randomized design, in a 4x4 factorial arrangement, with four Metd levels (0.45, 0.51, 0.57 and 0.63%) and four CHO levels (300, 800, 1300 and 1800 mg/kg), totaling 16 treatments with three replicates and 35 quails per experimental unit. The BW, WG and ABB were linearly influenced in function of increasing Metd levels (BW, P=0.014) (WG, P=0.010) (ABB, P=0.013) and CHO (BW, P=0.047) (WG, P=0.034) (ABB, P=0.030) in the experimental diets, occurring interaction between Metd levels and CHO, on BW (P=0.053), WG (P=0.039) and ABB (P=0.035). It is concluded that the requirement of Metd for maximum performance of meat-type quails was at least 0.63% of Metd in the diet. In the supplemented levels of CHO, it has not been possible to promote the completion of the Metd requirement.
Cdigo: vtls000220735
Informaes adicionais:
Idioma: Portugus
Data de Publicao: 2015
Local de Publicao: Maring, PR
Orientador: Prof. Dr. Antonio Claudio Furlan
Co-Orientador: Prof. Dr. Paulo Cesar Pozza
Instituio: Universidade Estadual de Maring . Centro de Cincias Agrrias
Nvel: Tese (doutorado em zootecnia)
UEM: Programa de Ps-Graduao em Zootecnia

Responsavel: glaucia
Categoria: Aplicao
Formato: Documento PDF
Arquivo: Tese de doutorado - Daiane O Grieser-CORRIGIDA.pdf
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Criado: 28-04-2016 10:45
Atualizado: 29-04-2016 09:28
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