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| Sampaio,Cláudia Batista; Detmann,Edenio; Valadares Filho,Sebastião de Campos; Queiroz,Augusto César de; Valente,Tiago Neves Pereira; Silva,Robério Rodrigues; Souza,Marjorrie Augusto de; Costa,Viviane Aparecida Carli. |
| The 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 and weight of 12 months and 287±36 kg were used. Animals were fed elephant grass silage, corn silage or signal grass hay, with or without supplementation of 200 g concentrate per kg of the total diet. The experiment consisted of two 13-days periods, in which the concentrate supplementation was crossed over animals. The values of digestible fractions... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apparently digestible fractions; Feed analysis; Total digestible nutrients. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000900020 |
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| Valente,Tiago Neves Pereira; Detmann,Edenio; Valadares Filho,Sebastião de Campos; Queiroz,Augusto César de; Sampaio,Cláudia Batista; Gomes,Daiany Iris. |
| Two experiments were carried out to evaluate the effects of particles sizes on contents of neutral detergent fiber (NDF) by using nylon bags F57 (Ankom®) and non-woven textile (NWT 100 g/m²). In the first experiment, to check contents of NDF obtained with each one of the textilles, quantitative filter paper (purified cellulose) was used as analytical standard. The material was processed in a 1 or 2 mm and put in the bags in a ratio of 20 mg of dry matter/cm² of surface. The analyses were performed in a fiber analyser (Ankom220) and using a heat-stable a-amylase. No effects of particles sizes were found. In the second experiment, it was used samples of forage (signal grass hay, sugar cane, coastcross hay, corn straw, corn silage, and elephant grass at 50... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: F57; Non-woven textile; Nylon; Purified cellulose. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000500029 |
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| Valente,Tiago Neves Pereira; Detmann,Edenio; Queiroz,Augusto César de; Valadares Filho,Sebastião de Campos; Gomes,Daiany Iris; Figueiras,Janderson Florêncio. |
| The objective of this study was to evaluate the in situ degradation profiles of dry matter (DM) and neutral detergent fiber (NDF) of different forages using nylon (50 µm), F57 (Ankom®) and non-woven textile (NWT - 100 g/m²) bags. Eight forage samples were used: sugarcane, corn silage, elephant grass cut at 50 and 250 days of regrowth, corn straw, signal grass hay, coast cross hay, and fresh alfalfa. Samples were incubated for 0, 3, 6, 12, 18, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, and 312 hours. Two bags of each textile were used at each incubation time, totaling 768 bags, using two crossbred Holstein × Zebu steers fitted with ruminal canullae. There was difference in the common rate of lag and degradation (λ) of DM for all forages, except for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: F57; In situ method; Non-woven textile; Nylon. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100039 |
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| Valente,Tiago Neves Pereira; Detmann,Edenio; Valadares Filho,Sebastião de Campos; Cunha,Maura da; Queiroz,Augusto César de; Sampaio,Cláudia Batista. |
| The objective of this experiment was to evaluate estimates of concentration of indigestible dry matter (iDM), indigestible neutral detergent fiber (iNDF) and indigestible acid detergent fiber (iADF) in samples of cattle feed and feces processed at different particle sizes (1-, 2-, and 3-mm) using bags made from nylon (50 μm), F57 (Ankom®), and non-woven textile (NWT - 100 g/m²) in a in situ evaluation procedure. Eight samples of concentrates, seven samples of forages and two samples of cattle feces were used. The samples were put in the bags according to a ratio of 20 mg of dry matter/cm² of surface by using three bags of each textile for each size of particle, totaling 405 bags, which were submitted to ruminal incubation for 264 hours. The contents of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: F57; Internal markers; Nylon; Non-woven textile; Particle size. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000300027 |
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| Figueiras,Janderson Florencio; Detmann,Edenio; Paulino,Mário Fonseca; Valente,Tiago Neves Pereira; Valadares Filho,Sebastião de Campos; Lazzarini,Isis. |
| The objective of this work was to evaluate the effects of supplementation with nitrogenous compounds on intake and digestibility in cattle under grazing during dry season. It was used five Holstein × Zebu steers with average initial live weight of 236 kg, kept in five Brachiaria decumbens Stapf. paddocks (0.34 ha). The experiment was carried out according to a 5 × 5 Latin square design, with five supplementation levels and five experimental periods. The supplementation levels were the following: 0; 0.35; 0.70; 1.05, and 1.40 g of crude protein/kg live weight. A mixture of urea, ammonium sulfate and albumin (4.5:0.5:1.0, respectively) was used as nitrogen supplement. The average crude protein levels in the diet were 7.39; 8.92; 10.98; 12.55; and 13.62%, as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbial nitrogen; Rumen ammonia nitrogen; Supplementation; Urea. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000600020 |
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| Valente,Tiago Neves Pereira; Detmann,Edenio; Valadares Filho,Sebastião de Campos; Paulino,Mário Fonseca; Figueiras,Janderson Florêncio; Souza,Marjorrie Augusto de. |
| The 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 was processed in a knife mill with a 1-mm screen sieve and the procedures for analyses of NDF contents were performed in a fiber analyzer (Ankom220®). Four experiments were carried out with additions of different ingredients into the filter paper: corn starch added at the levels of 15 or 50%; pectin, 15 or 50%; casein, 10 or 30%; and soybean oil at 0,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: F57; Heat-stable α-amylase; Nylon; Woven-non textile. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000700027 |
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