6 documents found, page 1 of 1
Evaluation of models for prediction of the energy value of diets for growing ca...
Sampaio,Cláudia Batista; Detmann,Edenio; Valadares Filho,Sebastião de Campos; Queiroz,Augusto César de; Valente,Tiago Neves PereiraThe objective of this study was to estimate and evaluate the contents of apparently digestible fractions of crude protein, ether extract and non-fibrous carbohydrates, the digestible fraction of the neutral detergent fiber and the content of total digestible nutrients (TDN) from the chemical composition of feeds in growing cattle fed different diets. Fourteen F1 Red Angus × Nellore young bulls with average age ...
Evaluation of fecal recovering and long term bias of internal and external mark...
Sampaio,Cláudia Batista; Detmann,Edenio; Valente,Tiago Neves Pereira; Souza,Marjorrie Augusto de; Valadares Filho,Sebastião de CamposThe objective of this work was to estimate the total recovering and the long term bias of the estimates of fecal excretion using the external markers chromic oxide and titanium dioxide and internal markers indigestible dry matter (iDM), indigestible neutral detergent fiber (iNDF) and indigestible acid detergent fiber (iADF) in a digestion assay with cattle fed different diets. Fourteen F1 Red Angus x Nellore av...
Simulation of variations in the composition of samples in the evaluation of neu...
Valente,Tiago Neves Pereira; Detmann,Edenio; Valadares Filho,Sebastião de Campos; Paulino,Mário Fonseca; Figueiras,Janderson FlorêncioThe objective of this study was to evaluate the efficiency of using nylon textiles (50 μm), F57 (Ankom®) and non-woven textile (NWT - 100 g/m²) on laboratory evaluation of neutral detergent fiber (NDF) by using quantitative filter paper as purified cellulose standard and by simulating different composition of samples with additions of corn starch, pectin, casein and soybean oil. The quantitative filter paper wa...
Intake and digestibility in cattle fed low-quality tropical forage and suppleme...
Lazzarini,Isis; Detmann,Edenio; Sampaio,Cláudia Batista; Paulino,Mário Fonseca; Valadares Filho,Sebastião de Campos; Souza,Marjorrie Augusto deThe objective of this study was to evaluate the effects of supplementation with nitrogenous compounds on intake, digestibility, and rumen microbial synthesis in cattle fed low-quality tropical forage. Five crossbred heifers, averaging 209 kg and fitted with ruminal fistulla, were used. The animals were fed ad libitum with signal grass (Brachiaria decumbens Stapf.) hay, which had crude protein (CP) content of 5....
Rumen dynamics of neutral detergent fiber in cattle fed low-quality tropical fo...
Sampaio,Cláudia Batista; Detmann,Edenio; Lazzarini,Isis; Souza,Marjorrie Augusto de; Paulino,Mário Fonseca; Valadares Filho,Sebastião de CamposThe aim of this work was to evaluate the effects of supplementation with nitrogenous compounds on rumen dynamics of neutral detergent fiber (NDF) in cattle fed low-quality tropical forage. Five crossbred heifers with average live weight of 180 kg and fitted with rumen cannulae were used. The animals were fed ad libitum with signal grass (Brachiaria decumbens Stapf.) hay, which had crude protein (CP) content of ...
Balanço de compostos nitrogenados e estimativa das exigências de proteína de ma...
Véras,Robson Magno Liberal; Valadares Filho,Sebastião de Campos; Valadares,Rilene Ferreira Diniz; Rennó,Luciana Navajas; Paulino,Pedro Veiga RodriguesObjetivou-se com este estudo avaliar o efeito de níveis crescentes de PB sobre o balanço de N e as exigências de proteína metabolizável para mantença em bovinos Nelore. Foram utilizados 12 bovinos Nelore, fistulados no rúmen e no duodeno, de três condições sexuais (quatro fêmeas, quatro machos castrados e quatro machos não-castrados), com idade aproximada de 16 meses e peso corporal médio de 254,8; 285,1 e 265,...