Made available in DSpace on 2022-04-28T18:54:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2001-09-01; The objective of this experiment was to determine the true digestibility of lysine HCl and lysine sulfate, with ceccctomized adult roosters. Eighteen roosters, 2.854 kg live weight, were cecectomized and kept in cages for a period of 10 days. After two days of adaptation to the cages the animals were fe...
Made available in DSpace on 2022-04-28T18:54:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2000-03-01; With the objective to determine the methionine+cystine requirements, 1440 and 1080 commercial Hubbard broilers were used, 50% of each sex at the growing and finishing phases, respectively. Six supplemental levels of DL-methionine (.0, .06, .12, .18, .24, and .30%) were added to methionine+cystine defici...
Made available in DSpace on 2022-04-28T18:55:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2001-11-01; With the objective of determine the bioavailability of two lysine sources (lysine HCl and lysine sulfate), by a growth trial, 840 one day old male broiler chicks were placed in 56 boxes. Two basal diets were formulated to supply the birds nutritional requirements, one for the starting and the other for ...
Made available in DSpace on 2022-04-28T18:59:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-01-01; An outstanding feature of poultry production that provides animal protein yield for human feeding is its short production cycle. This characteristic has a linear relationship with waste production. Increasing the inclusion of this residue in diets in the near future is desirable in step with the growth ...
This study aimed to evaluate the performance and meat quality of broilers fed different levels of alpha-tocopherol. A total of 240 one-day-old Cobb 500® male broiler chicks were reared until day 7 of life, as recommended by the commercial line, and were fed at only 50% of the alpha-tocopherol requirement. At day 8, the chicks were weighed, homogenized, and allotted in a completely randomized design with four tr...
The objective of this study was to evaluate the behavioural parameters and surface temperatures of broilers fed different vitamin E levels. A total of 240 male, day-old Cobb 500® broiler chicks were raised until the seventh day of life, according to the recommendations for the strain, receiving feed with only 50% of vitamin E requirements. At eight days of age, the birds were weighed and standardised, and the t...
O objetivo deste trabalho foi determinar a composição química e os valores de energia metabolizável aparente (EMA) e metabolizável aparente corrigida pelo balanço de nitrogênio, EMAn, de alguns alimentos para frangos de corte. Foram utilizados 432 pintos de corte macho, de 14 a 24 dias de idade, distribuídos em delineamento inteiramente casualizado com 12 tratamentos (11 alimentos e uma dieta referência), seis ...
Este estudo foi realizado para determinar a relação ideal de treonina:lisina digestíveis para poedeiras leves no período de 42 a 58 semanas de idade. Foram utilizadas 240 poedeiras Hy Line W-36 com 42 semanas de idade durante 16 semanas. Os tratamentos foram distribuídos em delineamento inteiramente casualizado, com oito repetições e seis aves por unidade experimental. As dietas experimentais foram formuladas c...
O experimento foi realizado com o objetivo de avaliar o efeito da inclusão de diferentes níveis de um complexo enzimático composto por fitase, protease, xilanase, β – glucanase, celulase, amilase e pectinase, em dietas à base de milho e de farelo de soja, sobre os parâmetros de desempenho, de rendimento de carcaça e de qualidade da carne de frangos de corte. Foram utilizados 600 pintos de corte, de um dia de id...
Objetivou-se avaliar o conforto térmico, o desempenho e as variáveis fisiológicas de frangos de corte alojados em aviários com e sem pintura de telhados de fibrocimento, no período de 21 a 42 dias de idade. Foi utilizado o delineamento inteiramente casualizado, em arranjo com parcela subdividida, onde as parcelas foram compostas pelos galpões (com e sem pintura de telhado) e as subparcelas os horários de avalia...