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| Registros recuperados: 26 | |
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| Euclides,Valéria Pacheco Batista; Montagner,Denise Bataglin; Difante,Gelson dos Santos; Barbosa,Rodrigo Amorim; Fernandes,Wellington Souza. |
| Grazing strategy is a key element in the determination of sward structure, herbage nutritive value and animal performance. We aimed to compare the herbage characteristics and performance of livestock in pastures of Panicum maximum cv. Tanzania managed, using two rotational stocking strategies, which provided either a fixed-length rest period (FRP) of 35 days in the spring and fall and 30 days in the summer, or a variable-length rest period (VRP), determined by the time required for the canopy to achieve 70 cm in height. The pastures were evaluated in the pregrazing condition for forage mass (FM); leaf (LP), stem (SP) and dead matter (DP) percentages; and nutritive value (NV). The animals were weighed every 28 days. Pastures managed with the FRPs exhibited... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Panicum maximum; Canopy height; Nutritive value; Savannah; Stocking rate. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000600002 |
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| Junges,Amanda Heemann; Bremm,Carolina; Fontana,Denise Cybis; Oliveira,Carlos Alberto Oliveira de; Schaparini,Laura Pigatto; Carvalho,Paulo César de Faccio. |
| ABSTRACT The Pampa biome is an important ecosystem in Brazil that is highly relevant to livestock production. The objective of this study was to analyze the potential use of vegetation indices to discriminate grazing intensities on natural grasslands in the Pampa biome. Moderate Resolution Imaging Spectroradiometer (MODIS) Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) images from Jan to Dec, 2000 to 2013 series, were analyzed for natural grassland experimental units managed under high (forage allowance of 5 ± 2 % live weight – LW), moderate (13 ± 5 % LW) and low grazing intensity (19 ± 7 % LW). Regardless of intensity, the temporal profiles showed lower NDVI and EVI during winter, increased values in spring because of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: MODIS; NDVI; EVI; Green biomass; Stocking rate. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000400332 |
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| Moreira, Andréia Luciane; Agência Paulista de Tecnologia dos Agronegócios; Fagundes, Jailson Lara; Universidade Federal do Sergipe; Yoshihara, Eidi; Agência Paulista de Tecnologia dos Agronegócios; Backes, Alfredo Acosta; Universidade Federal do Sergipe; Barbosa, Leandro Teixeira; Universidade Federal do Sergipe; Heinrichs, Reges; Universidade Estadual Paulista “Júlio de Mesquita Filho". |
| Biomass and forage volume density and the performance and stocking rate of sheep on pastures with nitrogen-fertilized Tifton 85 and subjected to a continuous stocking system were evaluated. Four doses of nitrogen (0, 100, 200, and 400 kg ha-1 year), arranged in an experimental design with randomized blocks and four replications, were analyzed. Sixteen paddocks and Santa Inês sheep were used as test animals, coupled to crossbreed Santa Inês sheep as regulating animal stocking. Nitrogen-fertilized Tifton 85 pastures increased the amount of forage biomass and volume density which affected stocking rate and weight gain of sheep in continuous grazing. When pastures with Tifton 85 were administered in variable load continuous stocking, with grass kept at 15 cm,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.00.00-2; 5.04.04.00-8 animal performance; Cynodon spp.; Grazing nitrogen; Pasture; Stocking rate. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21935 |
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| Anjos, Amanda Nunes Assis dos; Olivo, Clair Jorge; Sauter, Caroline Paim; Silva, Aline Rodrigues; Santos, Fabiene Tomazetti dos; Seibt, Daiane Cristine. |
| Three grazing systems with Coastcross-1 bermuda grass (CC) + 100 kg N ha-1 year-1 + common vetch; CC + 100 kg N ha-1 year-1 + arrowleaf clover; and CC + 200 kg N ha-1 year-1 were evaluated. Thirteen grazing cycles were performed during the experimental period (313 days), with two, five, four and two cycles respectively in winter, spring, summer and fall. Lactating Holstein cows were used in the evaluation. Daily accumulation rate, forage production, rate of forage disappearance, agronomic intake, grazing efficiency, herbage allowance and stocking rate were evaluated. Mean rates of forage yield and stocking rate were 20.8; 17.6 and 19.7 t DM ha-1 and 7.0; 6.8 to 6.8 animal units ha-1 day-1 for the respective forage systems. The mixture Coastcross-1 plus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.00.00-2; 5.04.04.00-8 Cynodon; Lactating cows; Stocking rate; Trifolium vesiculosum; Vicia sativa.. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/31114 |
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| SIMONETTI,GABRIELA D.; OLIVO,CLAIR J.; SEIBT,DAIANE C.; BRATZ,VINICIUS F.; SAUTHIER,JULIO C.; ADAMS,CARINE B.. |
| Abstract: Elephant grass (EG) (Pennisetum purpureum Schum.) have great importance in tropical and subtropical climates, especially on dairy farms. Normally, EG is established alone under high fertilization levels. EG in organic production system can improve low production costs and environmental issues, are still little known. The aim of this research was to evaluate the performance of herbage yield, nutritive value, extraction/ export nutrient and forage yield and animal responses. Three production systems of EG were analyzed: (i) EG mixed spontaneous-growing species (SGE) in warm-season and ryegrass (R) in cool-season under organic production; (ii) EG mixed SGE + R under conventional system (positive control); and (iii) EG based under conventional... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crude protein; Dairy cows; Pennisetum purpureum Schum; Production of forage; Stocking rate. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300852 |
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| Jaurena,Martin; Lezama,Felipe; Cruz,Pablo. |
| Natural grasslands in the basaltic region of Uruguay are threatened by an increase in stocking rates and changes in land use. To assess the effect of grazing intensification, plant functional types are proposed as simple tools to aid the monitoring and management of vegetation. In the present study we evaluated the effect of stocking rate increase at community level taking into account plant traits of 23 dominant perennial grass species. In order to identify plant functional types, we determined the grazing response in an experiment with two wethers stocking rates (0.78 and 1.56 livestock units ha-1) quantifying species cover and traits values. Leaf dry matter content (LDMC) and specific leaf area (SLA) were the traits that best described the perennial... |
| Tipo: Journal article |
Palavras-chave: Natural grasslands; Diagnosis; Management; Stocking rate. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400013 |
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| Registros recuperados: 26 | |
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