|
|
|
| Registros recuperados: 28 | |
|
|
| Moreira,Antonia Leidiana; Alves,Arnaud Azevêdo; Moreira Filho,Miguel Arcanjo; Silva,Daniel Cézar da; Garcez,Bruno Spíndola; Vasconcelos,Vânia Rodrigues. |
| ABSTRACT Leaves of babassu may be used in diets for goats under maintenance, however, it is a low-quality roughage due to its high fiber content. The chemical treatment by ammonia causes reduction in the proportion of the cell wall, in addition to providing non-protein nitrogen for the microbial protein synthesis in the rumen. Babassu palm hay ammoniated with 4% urea (BHAU4%) was evaluated in this study as a substitute for guinea grass hay in the maintenance diets of goats in terms of intake, digestibility in vivo, and the partitioning of energy and nitrogen compounds. Twenty Anglo-Nubian male goats were used in a randomised block design with four treatments (diets containing 0, 33, 66, or 100% BHAU4%) and five replicates (animals/block). The chemical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestibility in vivo; Guinea grass; Native forage; Nitrogen balance; Orbignya phalerata Mart. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000600688 |
| |
|
|
| Araujo,Rafael Canonenco de; Pires,Alexandre Vaz; Susin,Ivanete; Urano,Fumi Shibata; Mendes,Clayton Quirino; Rodrigues,Gustavo Henrique; Packer,Irineu Umberto. |
| Soybean hulls (SH) are an alternative fiber source that may be used to maintain neutral detergent fiber (NDF) concentration while increasing the energy concentration of ruminant diets. The objective of this experiment was to determine the effects of replacing coastcross (Cynodon sp.) hay NDF by SH NDF on the apparent digestibility of nutrients and nitrogen balance of Santa Inês ram lambs. Twenty-four animals (42.5 ± 3.6 kg of body weight and six months old) were placed in metabolism crates and assigned in a randomized complete block design defined by body weight (BW). Experimental diets provided a similar concentration of NDF (52%) and crude protein (15%). Hay NDF from a 70% roughage-based diet was replaced with SH NDF by 33%, 67%, and 100%, resulting in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: NDF; Hair sheep; Nitrogen balance; Santa Inês; Water intake. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000600003 |
| |
|
|
| Silva,Eliane Aparecida da; Albino,Luiz Fernando Teixeira; Rostagno,Horacio Santiago; Ribeiro Junior,Valdir; Vieira,Rodolfo Alves; Campos,Anastácia Maria de Araújo; Messias,Rodrigo Knop Guazzi. |
| The objective of this study was to estimate the values of apparent metabolizable energy and apparent metabolizable energy corrected for nitrogen balance and determine the chemical composition of the following feedstuffs: babassu meal, sunflower meal, corn gluten meal, babassu starch flour, meat and bones meal, beans, millet, cookies residue, pasta residue and bread-making residue. The traditional method of excreta collection was used with broilers in the period of 14 to 24 days of age, which were distributed in a completely randomized design with eleven treatments and six replicates of six birds each. Each feedstuff replaced the reference diet at levels of 30 or 40% depending on the type of feedstuff. Chicks were housed in cages fitted with trays to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agroindustrial residues; Metabolizable energy corrected; Nitrogen balance. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300026 |
| |
|
|
| Mota,Diego Azevedo; Messana,Juliana Duarte; Canesin,Roberta Carrilho; Fiorentini,Giovani; Pires,Alexandre Vaz; Berchielli,Telma Teresinha. |
| The present study was conducted to investigate the effect of alternative true-protein sources to soybean meal, with different ruminal degradability, using a sugarcane-based diet, on nutrient digestion, ruminal fermentation, efficiency of microbial protein synthesis and passage rate in prepubertal dairy heifers. Eight crossbred rumen- and duodenum-cannulated Holstein × Gyr dairy heifers (202.0±11.5 kg BW) were evaluated in a 4 × 4 Latin square experimental design with four treatments and four periods in two simultaneous replicates. Dietary treatments were: soybean meal; cottonseed meal; peanut meal; and sunflower meal. When associated with diets containing sugarcane, the different protein sources did not affect intake or digestibility of dry mater, crude... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbial synthesis; Nitrogen balance; Rumen degradable protein; Sugarcane. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000200052 |
| |
|
|
| Ton,Ana Paula Silva; Furlan,Antonio Claudio; Martins,Elias Nunes; Batista,Eliany; Pasquetti,Tiago Junior; Toledo,Juliana Beatriz; Scherer,Carina; Saraiva,Lígia Melani. |
| The objective of this experiment was to estimate the digestible tryptophan (DTrp) requirements for growing meat quails. In the first experiment (1-14 days of age), 1,950 quails were distributed in a completely randomized design, with six levels of DTrp (0.27; 0.30; 0.33; 0.36; 0.39 and 0.42% of diet), five replications and 65 quails per experimental unit. There was a linear increase of feed intake, tryptophan intake, weight gain and body weight with the DTrp levels increase. In the second experiment (15-35 days of age), 1,350 quails were distributed in a completely randomized design, with six levels of DTrp (0.22; 0.25; 0.28; 0.31; 0.34 and 0.37% of diet), five replications and 45 quails per experimental unit. There was a linear increase for tryptophan... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body composition; Nitrogen balance; Synthetic amino acids. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000500017 |
| |
|
|
| Missio,Regis Luis; Oliveira,Mauro Dal Secco de; Sforcini,Mariana Paula Rossi; Rennó,Francisco Palma; Freitas Júnior,José Esler; Elejade,Denise Adelaide Gomes; Ferrari,Viviane Borba; Abud,Guilherme de Carvalho. |
| The objective of this study was to evaluate, in Nellore heifers, intake and digestibility of hydrolyzed sugarcane stored for different periods. The experimental design used was a 4 × 4 Latin square, four diets, four Nellore heifers with ruminal cannulas (initial body weight 285.4±23.08 kg and average initial age 14 months) and four periods of 21 days. The diets were composed by fresh sugarcane (time zero) or hydrolyzed sugarcane with addition of 0.5% of hydrated lime, stored for 24, 48 or 72 hours, as the unique forage. Intake and digestibility of feed fractions, nitrogen balance, microbial synthesis efficiency, total number of ruminal protozoans and ammoniacal nitrogen did not significantly change by storing sugarcane with addition of 0.5% of hydrated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestibility; Dry matter intake; Hydrated lime; Microbial protein; Nellore; Nitrogen balance. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700025 |
| |
|
| |
|
|
| Calomeni,Gustavo Delfino; Gardinal,Rodrigo; Venturelli,Beatriz Conte; Freitas Júnior,José Esler de; Vendramini,Thiago Henrique Annibale; Takiya,Caio Seiti; Souza,Heraldo Namorato de; Rennó,Francisco Palma. |
| ABSTRACTThe objective of this experiment was to quantify the effects of feeding polymer-coated slow-release urea on nutrient intake and total tract digestion, milk yield and composition, nutrient balances, ruminal fermentation, microbial protein synthesis, and blood parameters in dairy cows. Sixteen Holstein cows (580±20 kg of live weight (mean ± standard deviation); 90 to 180 days in milk (DIM); and 28 kg/d of average milk yield) were used in a replicated 4 × 4 Latin square experimental design. The animals were assigned to each square according to milk yield and DIM. The animals were randomly allocated to receive one of the following experimental diets: 1) control (without urea addition); urea (addition of 1% on the diet DM basis); polymer-coated slow... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nitrogen balance; Nitrogen efficiency; Non-protein nitrogen. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000900327 |
| |
|
|
| Chamroux, S.; Boucher, G.. |
| The evolution of nitrogen content in experimental closed circuit ¿and filters was followed, each tank being fed with different quantities of soluble organic matter. According to the trophic conditions, two types of metabolism could be observed : - a loss of nitrogen (denitrification), reaching almost 90% of the nitrogen input in eutrophic conditions, and close to 35% in mesotrophic conditions. - a gain in nitrogen (fixation), a predominant metabolism in oligotrophic and eutrophic conditions. Nitrogen retention in the sediment increases slightly with the organic matter input, but no proportionality could be established. It seems that the sediment, by its bacterial metabolisms, regulates its own organic matter richness. |
| Tipo: Text |
Palavras-chave: Circuit clos; S; Bilan azoté; Closed circuit; Sediment; Nitrogen balance. |
| Ano: 1979 |
URL: http://archimer.ifremer.fr/doc/00305/41654/40863.pdf |
| |
|
|
| Santana,Pedro Felipe; Rocha Júnior,Vicente Ribeiro; Ruas,José Reinaldo Mendes; Monção,Flávio Pinto; Borges,Luana Alcântara; Rigueira,João Paulo Sampaio; Ramos,Joyce Cipriana Pacheco; Gomes,Virgílio Mesquita. |
| ABSTRACT The objective of this study was to evaluate the effect of quantitative feed restriction level on nutrient intake and digestibility, nitrogen balance, efficiency and feeding behavior, and productive performance of F1 Holstein × Zebu cows in late lactation. Sixty F1 Holstein × Zebu cows were used at the stage of late lactation (183.0±17.5 days of lactation) and with initial body weight (BW) of 499±30 kg. The experimental arrangement adopted was the completely randomized design, with five feed restriction levels (3.39, 2.75, 2.50, 2.25, and 2.00% of BW) and twelve cows as replicates for each treatment. The roughage:concentrate ratio was of 75:25 in the total dry matter of the diet. The restriction of dietary supply from 3.39 to 2.0% of BW linearly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crossbred cows; Feed efficiency; Milk production; Nitrogen balance. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100701 |
| |
|
|
| Teixeira,Alex de Matos; Ribeiro Junior,Gabriel de Oliveira; Velasco,Frederico Osório; Faria Júnior,Wilson Gonçalves de; Rodriguez,Norberto Mario; Santos Rodrigues,José Avelino; McAllister,Tim; Gonçalves,Lúcio Carlos. |
| The purpose of this study was to evaluate the voluntary intake and digestibility of three sorghum (Sorghum bicolor, L. Moench) hybrid silages in sheep. The hybrids used were H1 -BRS 655 (CMSXS 222 A × CMSXS 235 R), with tannin; H2 -(ATF54 A × CMSXS 235 R), without tannin; and H3 -BRS 610 (CMSXS 232 A × CMSXS 234 R), without tannin. The intake and digestibility of dry matter (DM), gross energy (GE), neutral detergent fiber (NDF), acid detergent fiber (ADF) and crude protein (CP) were measured. Eighteen crossbred sheep weighing 59.4 kg (±8.3) were used in the trial. A completely randomized design with three treatments (hybrids) and six repetitions (sheep) was used. There were no differences in the DM intake or apparent digestibility among the hybrids. Silage... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forage preservation; Nitrogen balance; Nutritional value; Ram; Sorghum hybrid. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000100003 |
| |
|
|
| Monteiro-Motta,Ana Carolina; Scapinello,Cláudio; Oliveira,Andréia Fróes Galuci; Figueira,Josianny Limeira; Catelan,Fernanda; Sato,Joyce; Stanquevis,Caroline Espejo. |
| Two experiments were carried out to evaluate, respectively, nitrogen balance (NB) and the productive performance of 31-to-50-day-old rabbits subjected to different levels of lysine and methionine+cystine (met+cys). Seventy-five animals were randomly distributed in 5 × 3 blocks (five levels of lysine: 5.5, 6.5, 7.5, 8.5 and 9.5 g/kg combined with three levels of met+cys: 5.0, 6.0 and 7.0 g/kg), with 15 treatments and five replications for the NB assay. The assay lasted 14 days: 10 days for acclimatization and four days for feces and urine collection. Increasing met+cys levels had a quadratic effect on the nitrogen excreted in urine (NU): the lowest excretion was found at the dietary level of 5.9 g/kg met+cys. Increasing lysine levels also affected NU and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acids; Carcass; Nitrogen balance; Performance. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001200005 |
| |
|
|
| BERGAMASCO, A. F.; SILVA, F. C. da; RODRIGUES, L. H. A.; TRIVELIN, P. C. O.. |
| O Brasil é o maior produtor mundial de cana-de-açúcar, sendo que a queima da palha do canavial visando facilitar a colheita ainda é muito praticada. Essa prática vem sendo questionada pela alta emissão de gases, além de provocar perdas de nutrientes para as plantas, facilitar o aparecimento de ervas daninhas e erosão. As maiores limitações à produtividade da cana-de-açúcar, estão relacionados à disponibilidade de quantidades adequadas de nutrientes minerais nos solos, com destaque ao nitrogênio (N), mas, sem a queima prévia da cana, a cobertura pela palhada irá provocar mudanças no manejo da cultura e na dinâmica do N. O uso da modelagem matemática reduz a necessidade de experimentos e facilita a sistematização de conhecimentos sobre esse tema. O modelo... |
| Tipo: Outras publicações técnicas (INFOTECA-E) |
Palavras-chave: Cana-de-açúcar; Adubação nitrogenada; Balanço de nitrogênio.; Modelo Matemático; Simulação.; Mathematical models; Simulation models; Sugarcane; Nitrogen balance. |
| Ano: 2001 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/8306 |
| |
|
| |
|
|
| Garcez,Bruno Spindola; Alves,Arnaud Azevêdo; Oliveira,Maria Elizabete de; Moreira Filho,Miguel Arcanjo; Azevêdo,Danielle Maria Machado Ribeiro; Lacerda,Marlúcia da Silva Bezerra. |
| ABSTRACT The objective was to evaluate the nutrient metabolism and ingestive behavior of goats fed diets containing fruits of Carnauba and Tucum palm trees, abundant in the Northeast region with fruiting in the dry season and use as alternative food for ruminants. For this end, 21 goats fed three diets, one control and two with carnauba or tucum fruits, in a completely randomized design. We determined nutrient intake through total collection of leftovers, faces and urine, as well as energy and nitrogen balance. Ingestive behavior was assessed by visual observations every 5 min for 24 h. There was a reduction in dry matter intake of 0.183 and 0.223 kg/day for diets containing tucum and carnauba fruits, respectively. The intake of digestible protein (78.04... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative food; Bactris setosa; Copernicia prunifera; Nitrogen balance; Dry matter intake. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000200413 |
| |
|
|
| Ferreira,Ana Cristina Holanda; Rodriguez,Norberto Mario; Neiva,José Neuman Miranda; Pimentel,Patrícia Guimarães; Gomes,Silas Primola; Campos,Warley Efrem; Lopes,Fernando César Ferraz. |
| ABSTRACT This study was conducted to evaluate the intake, apparent digestibility (AD), and degradability in situ of elephant grass (Pennisetum purpureum Schum) silages containing 0, 35.0, 70.0, 105.0, and 140.0 g kg-1 by-product from dried cashew apple (DCBP) (as fed basis). A completely randomized design with four replicates was adopted. For the study of degradability in situ, one adult male cattle was used in a completely randomized design with split plots. Intake and AD of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicellulose, and cellulose were evaluated, and the digestible energy (DE) and nitrogen balance (NB) of the silages were determined. The degradability in situ of DM, CP, and NDF was also... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agro-industrial waste; Digestibility; Intake; In situ degradation; Nitrogen balance. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015001200434 |
| |
|
| |
|
|
| Oliveira Filho,Carlos Alberto Alves; Machado,Fernanda Samarini; Ferreira,Alexandre Lima; Tomich,Thierry Ribeiro; Maurício,Rogério Martins; Campos,Mariana Magalhães; Silva,Camilla Flávia Portela Gomes da; Azevêdo,José Augusto Gomes de; Pereira,Luiz Gustavo Ribeiro. |
| Abstract: The objective of this work was to evaluate the effects of nutritional plans and breed composition on nutrient intake and digestibility, nitrogen balance, and performance of dairy heifers in tropical conditions. Thirty-six heifers - 12 Holstein, 12 Gyr, and 12 Gyrolando F1 (½ Holstein × ½ Gyr) - were housed in a tie-stall system and randomly distributed, adopting a completely randomized design in a 3×3 factorial arrangement (nutritional plans and breed composition). The diets were formulated to enable weight gains of 200, 400, and 800 g per day, corresponding to the nutritional plans 11, 14, and 19 g kg-1 body weight (BW), respectively. The intake of dry matter, fibrous fractions (g kg-1 BW-0.75), and metabolizable energy (kcal-1 BW-0.75) in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gyr; Gyrolando; Ingestion; Nitrogen balance; Weight gain. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000200247 |
| |
|
|
| Castro,Kélvia Jácome de; Neiva,José Neuman Miranda; Borges,Iran; Miotto,Fabrícia Rocha Chaves; Gomes,Silas Primola; Pimentel,Patrícia Guimarães. |
| ABSTRACT The use of agro-industrial by-products in feeding ruminants has nutritional, environmental and economic advantages, and helps to sustain the production system. The aim of this study was to evaluate the nutritional value of diets containing babassu cake as a substitute for Tifton-85 hay (70, 140, 210, 280 and 350 g kg-1 dry matter: DM). Twenty-five castrated male sheep with a mean body weight of 49.6 ± 9.4 kg were used, distributed in metabolic cages in a completely randomised design. Voluntary intake was obtained from the difference between the amount of feed provided and the leftovers the following morning. To evaluate nutrient digestibility and nitrogen (N) balance, samples of urine and faeces were collected separately. There was no effect on DM... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative feed; Nitrogen balance; Coefficient of digestibility; Intake; Agro-industrial by-product. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000300405 |
| |
|
|
| Borba, Luis Felipe Pereira; Universidade Federal Rural de Pernambuco; Ferreira, Marcelo de Andrade; Universidade Federal Rural de Pernambuco; Guim, Adriana; Universidade Federal Rural de Pernambuco; Tabosa, José Nildo; Instituto Agronômico de Pernambuco; Gomes, Luiz Henrique dos Santos; Universidade Federal Rural de Pernambuco; Santos, Viviany Lúcia Fernandes dos; Universidade Federal Rural de Pernambuco. |
| Nutrition values of silages from different sorghum cultivars are evaluated. Five 26-kg castrated crossbred lambs, housed in pens equipped with feces and urine collectors for the study of their metabolism, were employed in a 5 x 5 Latin square experimental design. Treatments consisted of silage from five different sorghum cultivars: IPA 1011 and IPA 2564 (grain sorghum), IPA 2502 (dual purpose sorghum), IPA FS-25 and IPA 467 (forage sorghum). Protein level was corrected to 12% by adding a mixture of urea: ammonium sulfate (9:1). Treatments IPA 1011, IPA 2564 and IPA 2502 provided high intake of dry matter, total carbohydrate and total digestible nutrients, and low intake of neutral detergent fiber. Cultivars IPA 1011 and IPA 2564 provided high apparent... |
|
Palavras-chave: Nitrogen balance; Composition; Intake; Digestibility; Forage. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/12853 |
| |
| Registros recuperados: 28 | |
|
|
|
