Search Results - "Valadares, R.F.D."

The effect of CP concentration in the diet on urea kinetics and microbial usage of recycled urea in cattle: a meta-analysis by Batista, E. D., Detmann, E., Valadares Filho, S. C., Titgemeyer, E. C., Valadares, R. F. D.

“…In ruminants, urea recycling is considered an evolutionary advantage. The amount of urea recycled mainly depends of the nitrogen (N) intake and the amount of…”
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Effect of replacing alfalfa silage with high moisture corn on ruminal protein synthesis estimated from excretion of total purine derivatives by Valadares, R F, Broderick, G A, Valadares Filho, S C, Clayton, M K

“…Twenty-four multiparous dairy cows (eight with ruminal cannulae) were blocked by days in milk and assigned to six balanced 4 x 4 Latin squares with 21-d…”
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Nutrient digestibility, nitrogen metabolism and hepatic function of sheep fed diets containing solvent or expeller castorseed meal treated with calcium hydroxide by de Oliveira, A.S., Campos, J.M.S., Oliveira, M.R.C., Brito, A.F., Filho, S.C. Valadares, Detmann, E., Valadares, R.F.D., de Souza, S.M., Machado, O.L.T.

“…Nineteen sheep averaging 56 kg of initial body weight were used in a completely randomized design to investigate the effects of feeding Ca(OH) 2-treated (40…”
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Endogenous fraction and urinary recovery of purine derivatives in Nellore and Holstein heifers with abomasal purine infusion by Prates, L.L., Valadares, R.F.D., Valadares Filho, S.C., Detmann, E., Santos, S.A., Braga, J.M.S., Pellizzoni, S.G., Barbosa, K.S.

“…The excretion of purine derivatives (PD) as an index of microbial biomass production in the rumen can be biased by the endogenous fraction and the incomplete…”
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Nutritional diversity of agricultural and agro-industrial by-products for ruminant feeding by Azevêdo, J.A.G., Valadares Filho, S.C., Pina, D.S., Detmann, E., Pereira, L.G.R., Valadares, R.F.D., Fernandes, H.J., Costa e Silva, L.F., Benedeti, P.B.

“…Fifty-seven by-products were collected from regions throughout Brazil. Chemical composition, in vitro neutral detergent fiber digestibility (IVNDFD), and total…”
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Effect of replacing alfalfa silage with high moisture corn on nutrient utilization and milk production by Valadares Filho, S C, Broderick, G A, Valadares, R F, Clayton, M K

“…Twenty-four multiparous lactating Holstein cows were blocked by days in milk and assigned to treatment sequences in a replicated 4x4 Latin square with 21-d…”
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Desempenho e exigências de energia e proteína de bovinos de corte em pasto suplementados by Machado, P.A.S, Valadares Filho, S.C, Valadares, R.F.D, Paulino, M.F., Paulino, P.V.R, Marcondes, M.I.

“…Avaliou-se o efeito dos níveis de suplementação sobre o desempenho, as características de carcaça, a composição corporal e as exigências de energia e proteína…”
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Zeólita na dieta de bovinos de corte by Câmara, L.R.A, Valadares Filho, S.C., Leão, M.I., Valadares, R.F.D, Dias, M., Gomide, A.P.C, Barros, A.C.W, Nascimento, V.A., Ferreira, D.J., Faé, J.T., Carneiro, C., Cardoso, L.L.

“…Avaliou-se o efeito da inclusão de zeólita na dieta de bovinos de corte sobre os parâmetros ruminais, as digestibilidades total e parcial, a produção de…”
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Consumo, digestibilidade total, produção de proteína microbiana e balanço de nitrogênio em dietas para ruminantes de subprodutos by Azevêdo, J.A.G, Valadares Filho, S.C, Pina, D.S, Valadares, R.F.D, Detmann, Paulino, M.F, Diniz, L.L, Fernandes, H.J

“…Avaliaram-se os efeitos da inclusão da fonte - subproduto do cacau, mandioca-casca, mandioca-caule e farelo de glúten de milho - e da proporção - 10 e 30% - de…”
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Performance, digestibility and carcass characteristics of feedlot dairy steers fed diets with different urea levels by Magalhães, K.A.(UFV Departamento de Zootecnia), Valadares Filho, S.C.(UFV Departamento de Zootecnia), Paulino, P.V.R.(UFV Departamento de Zootecnia), Paulino, M.F.(UFV Departamento de Zootecnia), Valadares, R.F.D.(UFV Departamento de Zootecnia)

“…The effects of urea levels on feed intake, digestibility and carcass traits of 27 confined cross bred steers weighing 303.25 ± 60.8kg, were evaluated…”
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Investigating the effects of sex of growing Nellore cattle and crude protein intake on the utilization of recycled N for microbial protein synthesis in the rumen by using intravenous 15 N 15 N-urea infusion by Prates, L.L., Valadares, R.F.D., Filho, S.C. Valadares, Detmann, E., Ouellet, D.R., Batista, E.D., Zanetti, D., Pacheco, M.V.C., Silva, B.C.

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Investigating the effects of sex of growing Nellore cattle and crude protein intake on the utilization of recycled N for microbial protein synthesis in the rumen by using intravenous 15N15N-urea infusion by Prates, L.L., Valadares, R.F.D., Filho, S.C. Valadares, Detmann, E., Ouellet, D.R., Batista, E.D., Zanetti, D., Pacheco, M.V.C., Silva, B.C.

“…•Microbial protein synthesis increases linearly with higher CP and TDN intakes.•Lower dietary crude protein contents are associated with greater urea…”
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Endogenous fraction and urinary recovery of purine derivatives obtained by different methods in Nellore cattle by Barbosa, A.M, Valadares, R.F.D, Valadares Filho, S.C, Pina, D.S, Detmann, E, Leão, M.I

“…Two experiments were conducted to assess the endogenous fraction of purine derivative (PD) excretion, urinary recovery, and intestinal digestibility of purines…”
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Valor energético do capim-elefante em diferentes idades de rebrota e estimativa da digestibilidade in vivo da fibra em detergente neutro by Silva, P.A.(UFV Departamento de Zootecnia), Valadares Filho, S.C.(UFV Departamento de Zootecnia), Valadares, R.F.D.(UFV Departamento de Veterinária), Cecon, P.R.(UFV Departamento de Informática), Detmann, E.(UFV Departamento de Zootecnia), Paixão, M.L.(UFV Departamento de Zootecnia)

“…Comparou-se o valor energético do capim-elefante, obtido em diferentes idades de rebrota, com aqueles estimados pelas equações do National Research Council…”
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Intake, apparent digestibility, and nutrient requirements for growing Nellore heifers and steers fed two levels of calcium and phosphorus by Costa e Silva, L.F., Engle, T.E., Valadares Filho, S.C., Rotta, P.P., Valadares, R.F.D., Silva, B.C., Pacheco, M.V.C.

“…Nutrient apparent digestibility, intake, performance, microbial efficiency, and energy and protein requirements for growing Nellore heifers and steers were…”
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Estudo comparativo da cinética de degradação ruminal de forragens tropicais em bovinos e ovinos by Campos, P.R.S.S.(UENF), Valadares Filho, S.C.(UFV Departamento de Zootecnia), Cecon, P.R.(UFV Departamento de Informática), Detmann, E.(UFV Departamento de Zootecnia), Leão, M.I.(UFV Departamento de Zootecnia), Souza, S.M.(UFV), Lucchi, B.B, Valadares, R.F.D.(Departamento de Veterinária)

“…Estimaram-se os parâmetros da cinética de degradação ruminal in situ da fibra em detergente neutro (DgFDN) da cana-de-açúcar e das silagens de capim-elefante,…”
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Castor bean meal for cattle finishing: 1—Nutritional parameters by Diniz, L.L., Valadares Filho, S.C., de Oliveira, A.S., Pina, D.S., da Silva, L.D., Benedeti, P.B., Baião, G.F., Campos, J.M.S., Valadares, R.F.D.

“…This study was carried out to evaluate the effects of replacing soybean meal (SM) with castor bean meal supplemented (CBT) or not (CBNT) with calcium oxide on…”
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Comparison of purine bases and 15N for quantifying microbial nitrogen yield using three marker systems and different sampling sites in zebu cross breed bulls by Rotta, P.P., Valadares Filho, S.C., Costa e Silva, L.F., Detmann, E., Villadiego, F.A.C., Engle, T.E., Valadares, R.F.D., Silva, B.C., Pacheco, M.V. C., Zanetti, D.

“…The present experiment was designed to evaluate the use of microbial markers (MM), sampling sites (SS), and marker systems (MS) to estimate microbial nitrogen…”
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Influence of different levels of concentrate and ruminally undegraded protein on digestive variables in beef heifers by Pina, D.S, Valadares Filho, S.C, Tedeschi, L.O, Barbosa, A.M, Valadares, R.F.D

“…This experiment evaluated the effect of 2 levels of diet concentrate (20 and 40% of DM) and 2 levels of ruminally undegraded protein (RUP: 25 and 40% of CP) on…”
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Intake, digestibility, and nitrogen efficiency in Holstein heifers fed treated jatropha (Jatropha curcas L.) kernel cake by da Silva, L.D., Pereira, O.G., Valadares Filho, S.C., Ribeiro, K.G., Valadares, R.F.D., Silva, T.C., Santos, S.A.

“…The effects of dietary substitution of soybean meal (SBM) with ethanol-treated jatropha kernel cake with seed shells (TJC) on nutrient intake and…”
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