Produção acadêmica de doutorado em Zootecnia produzidas por outras instituições https://repositorio.uema.br/jspui/handle/123456789/512 2026-04-10T18:08:59Z 2026-04-10T18:08:59Z https://repositorio.uema.br/jspui/handle/123456789/5899 2026-02-24T19:10:52Z 2024-04-02T00:00:00Z

Título: Exigências nutricionais de lisina e de metionina + cistina totais para Frangos de corte nas fases de crescimento e final, mantendo ou não a relação lisina : aminoácidos sulfurosos Abstact: Totais lysine and de metionina + cystine nutritional requirement for broiler on growing and finishing phase, maintaining or not the lysin relationship : aminoácids sulfur. Adviser: Fernando Guilherme Perazzo Costa. Committee Members: José Humberto Vilar da Silva, Walter Esfrain Pereira, Jorge Vitor Ludke e Carlos Boa Viagem Rabello. Six experiments were carried out to estimate the total lysine and methionine + cystine requirement for male Ross broilers, from 22 to 42 and 43 to 49 days of age maintaining or not lysine relationship : sulfur amino acids. During the period of 22 to 42 days 2.700 broilers have been used and basal diet containing 19,5 % of CP and 3.100 kcal de ME/kg. On experiment 1, it have been suplemented a basal diet with six levels (0; 0.08; 0.16; 0.24; 0.32 and 0.40 %) of lisina-L • HCl (78,4%) corresponding to levels (0.936; 1.016; 1.096; 1.176; 1.256 and 1.336 %) of total lysine. On experimente 2, it had been suplemented a basal diet with six levels (0; 0.04; 0.08; 0.12; 0.16 and 0.20 %) of methionine-DL (99%) corresponding to levels (0.664; 0.704; 0.744; 0.784; 0.824 and 0.864 %) of total met + cys. On experiment 3, relationship 1,41:1 was kept corresponding to levels (0.936 : 0.664; 1.016 : 0.721; 1.096 : 0.778; 1.176 : 0.835; 1.256 : 0.892 and 1.336 : 0.949 %) of total lysine : met + cys. During the period of 43 to 49 days of age. 2.700 have been used in 3 experiments and a deficient basal diet in total lysine and met + cys, with 18 % of CP and 3.200 kcal of ME/kg. In the experiment 1, it had been suplemented the basal diet with six levels (0; 0.08; 0.16; 0.24; 0.32 and 0.40 %) of lisina-L • HCl (78,4%)corresponding to levels (0.850; 0.930; 1.010; 1.090; 1.170 and 1.250 %) of total lysine. In the experiment 2, it had been supplemented the basal diet with six levels (0; 0,4; 0,08; 0,12; 0,16 and 0,20 %) of DL-methionine 99% corresponding to levels of (0.603; 0.643; 0.683; 0.723; 0.763 and 0.803 %) of total met + cys. On experiment 3, relationship 1.41:1 was kept on levels (0.850 : 0.603; 0.930 : 0.660; 1.010 : 0.717; 1.090 : 0.774; 1.170 : 0.831 and 1.250 : 0.888 %) of total lysine : met + cys. During the period of 22 and 42 days, on experiment1, levels of lysine had influenced linearly the feed intake and feed : gain ratio, and quadratically weight gain, with estimated requirement in 1.102 % of total lysine. To yield data, trataments have influenciede abdomen fat and gizzard weight, whith estimated requirements in 1.111 and 1.131 % of total lysine, respectively, in a conventional ration. On experiment 2, levels of met + cys had influenced quadratically weight gain with with estimated requirements in 0.758 and 0.792 %, and feed : gain ratio with estimated requirements in 0.758 and 0.809 % of total met + cys in a conventional ration and keeping relation respectively. To yield data, levels of met + cys had influenced linearly carcass yield and abdomen fat, and quadratically yield breast, whith estimated requirement in 0.823 % of total met + cys. On experiment 3, where relationship was kept, levels lysine : met + cys, had influenced quadratically weight gain with estimated requirement in 1.115 : 0,792 % and feed : gain ratio with estimated requirement in 1.140 : 0.809 % of total lysine : met + cys, respectively. During the period 43 to 49 days, on experiment 1, levels lysine had influenced quadratically feed : gain ratio and weight gain, with estimated requirement in 1.092 and 1.044 % of total lysine, respectively. To yield data, lysine levels had influenced linearly breast yield. On experiment 2, levels of met + cys had influenced quadratically gain weight and feed : gain ratio, with estimated requirement in viii 0.727 and 0.725 of met + cys, respectively. To yield data, met + cis levels had influenced quadratically the abdomen fat, with estimated requirement in 0.723 % of total met + cys. On experiment 3, relationship 1.41:1 was kept, lysine levels : met + cys had influenced quadratically gain weight and feed : gain ratio, with estimated requirement in 1.024 : 0.741 and 1.044 : 0.741 of total lysine : met + cys, respectively. To yield data, levels lysine : met + cys hed influenced quadratically carcass and breast yield, with estimated requirements in 1.035:0.735 and 1.023:0.726 % of total lysine : met+ cys, respectively. To gain weight relation to organs, lysine levels : met + cys had influenced quadratically heart weight, with estimated requirement in 1.087:0.770 % of total lysine : met + cys, respectively. About the results of gain weight, feed : gain ratio and breast yield, on 6 experiments, it can be recommended to broilers (male Ross), in period 22 to 42 days of age the nutritional levels 1.140 and 0.823 % of total lysine and met + cys, respectively and from to period 43 to 49 days of age, it can be recommended nutritional levels of 1.044 and 0.741 % of total lysine and met + cys, on ration keeping the relationship, lysine : sulfur amino acids

2024-04-02T00:00:00Z Gazolla, Afrânio Gonçalves https://repositorio.uema.br/jspui/handle/123456789/513 2022-02-24T01:19:07Z 2012-04-24T00:00:00Z

Título: Capim-marandu e babaçu em sistema silvipastoril Autor(es): Gazolla, Afrânio Gonçalves Abstact: O trabalho objetivou avaliar efeito do babaçu (Attalea speciosa Mart.) sobre os aspectos de: produção de sombra, presença de plantas daninhas, área de solo nu, massa e composição química do pasto de capim-marandu (Brachiaria brizantha cv. Marandu) nos períodos de maior e menor disponibilidade de água, mantido sobre pastejo intermitente, com período de descanso de 30 dias no período das águas e 60 dias no período seco, utilizando a técnica de “mob-stocking”. O experimento foi conduzido de setembro de 2010 a setembro de 2011, na Fazenda Santo Antonio em Matinha – MA. A área experimental foi dividida em seis piquetes com as respectivas densidades: 10, 20, 30, 40, 50 e 60 palmeiras por hectare. O delineamento experimental foi formado por parcelas sub-divididas, tendo nas parcelas um fatorial 2 x 6 (dois períodos e seis densidades) e nas sub-parcelas o sombreamento (sombra e sol) com quatro repetições cada. No período das águas o aumento da densidade de palmeiras de babaçu (Attalea speciosa Mart.) em linhas gerais: reduziu à proteína bruta, a porcentagem do solo nu, aumentou a matéria seca da forragem e a umidade do solo. No período seco, o aumento da densidade de palmeiras de babaçu reduziu a proteína bruta e a porcentagem do solo nu. Nas áreas sombreadas o aumento da densidade de palmeiras contribuiu para maiores teores de umidade. O porte elevado das palmeiras de babaçu reduziu o efeito do sombreamento como fator de inibição do desenvolvimento do capim-marandu. A massa seca de capim-marandu foi maior no período das águas e no período seco a massa seca de plantas daninhas, onde o babaçu em sua fase inicial e o capim-duro (Paspalum virgatum) tiveram respectivamente maior participação. O aumento das densidades de palmeiras de babaçu reduziu a massa de plantas invasoras e a porcentagem de solo nu. A grande presença de invasoras e a composição química do solo apontam para um adiantado grau de degradação da pastagem. Descrição: 72 f.Tese (Doutorado em Zootecnia) - Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias,Jaboticabal,2012Orientador: Prof. Dr. Ricardo Andrade Reis 

2012-04-24T00:00:00Z