14 documents found, page 1 of 2
Metabolizable Protein: 1. Predicting Equations to Estimate Microbial Crude Prot...
Santos, Stefanie Alvarenga; de Carvalho, Gleidson Giordano Pinto; Azevêdo, José Augusto Gomes; Zanetti, Diego; Santos, Edson MauroMade available in DSpace on 2022-04-28T19:40:49Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-06-10; Instituto Nacional de Ciência e Tecnologia de Ciência Animal; Microbial crude protein (MCP) produced in rumen could be estimated by a variety of protocols of experimental sampling and analysis. However, a model to estimate this value is necessary when protein requirements are calculated for small rumina...
Effect of phase-feeding crude protein on performance and carcass characteristic...
Amaral, Paloma de Melo; Valadares Filh, Sebastião de Campos; Detmann, Edenio; Santos, Stefanie Alvarenga; Prados, Laura Franco; Mariz, Lays Débora SilvaBeef cattle (24) with an average initial body weight of 417 ± 54 kg were assigned in a 2 × 2 factorial design with six repetitions. The factors studied were two levels of CP: 11 (low CP) or 13 % (high CP) in the initial feedlot phase (days 1–36) and in the final phase (days 37–72). After 36 days, half of the bulls fed with each level of CP were selected to reverse the CP level. No interaction was observed (P > ...
Comparing sheep and cattle to quantify internal markers in tropical feeds using...
Detmann, Edenio; Reis, Maria José; Santos, Stefanie Alvarenga; Prates, Luciana Louzada; Carvalho, Gleidson Giordano PintoThe main focus of this work was to verify the hypothesis that there are differences between cattle and sheep to obtain internal markers in tropical forages using in situ ruminal incubation. A presupposition that the indigestible fraction is exclusively inherent to feed was considered, and its ruminal incubation in different animal species should not change the estimate of this fraction; but should change the mi...
Voluntary intake and milk production in F1 Holstein×zebu cows in confinement
Santos, Stefanie Alvarenga; Valadares Filho, Sebastião de Campos; Detmann, Edenio; Valadare, Rilene Ferreira Diniz; Ruas, José Reinaldo de MendesThe objective of this study was to evaluate the nutrient intake and milk production in Holstein × zebu (F1) cows in feedlot. Eighteen F1 cows were used, divided into three treatments; six were Holstein × Gir (HGI), six were Holstein × Guzerat (HGU), and another six were Holstein × Nelore (HNE), which had recently calved, distributed into simple, random samples, under the same feeding conditions of corn silage a...
Impact of replacing soybean meal in beef cattle diets with inactive dry yeast, ...
Campos, Andressa Fernanda; Pereira, Odilon Gomes; Ribeiro, Karina Guimarães; Santos, Stefanie Alvarenga; Valadares Filho, Sebastião de CamposThis study assessed the intake, total and partial apparent digestibility of nutrients, pH, ruminal ammonia concentration, nitrogen efficiency usage, and productive performance of beef cattle fed with different soybean meal replacement levels with inactive dry yeast (IDY 0, 250, 500, 750, and 1000 g/kg). The forage:concentrate ratio was 60:40 and the forage source was corn silage. Concentrates were formulated to...
Silages of Brachiaria brizantha cv. Marandu harvested at two regrowth ages: Mic...
Cezário, Andrea Santos; Ribeiro, Karina Guimarães; Santos, Stefanie Alvarenga; Valadares Filho, Sebastião de Campos; Pereira, Odilon GomesBrachiaria brizantha cv. Marandu silages (BBS) were ensiled at two (35 and 70 d) regrowth ages (RA), with and without microbial inoculant (MI). No differences were observed regarding the chemical composition and fermentation parameters, with the exception of volatile fatty acids, which were affected by MI and RA interaction. No effects were observed on total nutrient digestibility in beef steers. The ruminal di...
Creatinine as a metabolic marker to estimate urinary volume in growing goats
Valadares Filho, Sebastião de Campos; Santos, Stefanie Alvarenga; Prates, Luciana Louzada; Carvalho, Gleidson Giordano Pinto deThe objectives of this study were to: (1) quantify the relationship between fasting body weight (FBW, kg) and urinary creatinine excretion (UCE, mg/d) in Boer goats; (2) evaluate the urinary volume estimates obtained from creatinine concentrations in the spot samples collected at different time points; (3) compare them with the 24-h observed urine volume. Thirty growing Boer goats (18 ± 2.2 kg initial BW) were ...
Balanço de nitrogênio em fêmeas leiteiras em confinamento alimentadas com conce...
Santos, Stefanie Alvarenga; Campos, José Maurício de Souza; Valadares Filho, Sebastião de Campos; Oliveira, André Soares de; Souza, Shirley Motta deAvaliou-se a influência do fornecimento de concentrados à base de farelo de soja ou farelo de algodão em dietas com silagem de milho sobre o balanço de nitrogênio e a produção de proteína microbiana em fêmeas leiteiras em crescimento. As dietas foram constituídas da combinação de dois níveis de concentrado (1 ou 2 kg) e duas fontes proteicas (farelo de soja ou farelo de algodão). Os animais que consumiram conce...
Spineless cactus as a replacement for wheat bran in sugar cane-based diets for ...
Lins, Stephany Emyle Barbosa; Pessoa, Ricardo Alexandre Silva; Ferreira, Marcelo de Andrade; Campos, José Maurício de SouzaThe objective of this study was to evaluate the effect of replacing wheat bran by spineless cactus (0, 25, 50, 75, and 100%) in sugar cane-based diets on intake and nutrient digestibility and ruminal parameters of sheep. Five sheep (Santa Inês; average initial weight of 34.0±3.6 kg) were fitted with cannulas in the rumen and then assigned to a 5 × 5 Latin square design. The maximum dry matter (DM; 1414 g d−1), ...
Intake, digestibility and nitrogen use efficiency in crossbred F1 Holstein × Ze...
Santos, Stefanie Alvarenga; Valadares Filho, Sebastião de Campos; Detmann, Edenio; Valadares, Rilene Ferreira Diniz; Ruas, José Reinaldo MendesThe objective of this study was to evaluate intake, digestibility and nitrogen (N) compounds use efficiency in F1 Holstein × Zebu grazing cows. Eighteen crossbred cows (six Holstein × Gir, six Holstein × Guzerat, and six Holstein × Nellore) were used in the experiment, constituting three experimental treatments in simple random samples, under the same feeding conditions. At the estimation of individual intake a...