Performance of Nelore cattle on Panicum maximum pastures in the Brazilian Cerrado

Maciel, Giovana Alcantara; Braga, Gustavo José; Guimaraes, R.; Araújo, Hélio A. de; Ramos, A. K. B.; Carvalho, Marcelo Ayres; Vilela, Lourival; Jank, Liana

doi:10.17138/tgft(1)95-96

Cited by 23 publications

(4 citation statements)

References 3 publications

(2 reference statements)

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“…The volumetric density of this study in pre-grazing condition (Tables 2 and 3) had higher values than those reported by Maciel et al (2013). This difference may be related to the pasture management method, in which the authors set stocking according to the provision of pasture forage.…”

Section: Discussioncontrasting

confidence: 67%

Structure of massai grass pasture grazed on by sheep supplemented in the dry season

et al. 2017

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This study aimed to evaluate the agronomic and structural characteristics of massai grass under grazing by sheep supplemented in the dry season. The treatments were supplements offered to sheep in massai grass pastures: multiple mixture, leucaena hay, gliricidia hay and soybean meal. The pastures were evaluated regarding: canopy height; forage accumulation and mass; accumulation, mass and percentage of morphological constituents; leaf:stem and green mass:dead material ratio; and pre‐ and post‐grazing forage bulk density. Higher pre‐grazing heights were observed (27.4 cm) in pasture occupied by animals supplemented with multiple mixture. No effects of supplement types for forage mass (average of 4426.6 kg ha−1 of dry matter) or of morphological constituents in pre‐grazing were observed; however, a grazing cycle effect was observed for these variables, with decreased forage mass in the order of 20% between the first and fourth pasture cycle. Involvement of dead material in forage mass increased by 45 and 23% in the pre and post‐grazing, respectively, from the first to the third grazing cycle. Using protein supplements in sheep's diet was not able to modify massai grass structure in the dry season. Massai grass is alternative forage for supplemented sheep production systems in pastures during the dry season, supporting grazing in 150 mm rainfall conditions for 6 months.

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Section: Discussioncontrasting

confidence: 67%

Structure of massai grass pasture grazed on by sheep supplemented in the dry season

et al. 2017

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“…As plantas do gênero Panicum são caracterizadas pelo seu grande potencial de produção de forragem sendo, porém, menos flexíveis que plantas como as do gênero Brachiaria, por apresentarem limitações ou dificuldades quando manejadas sob lotação contí-nua, prevalecendo, de uma forma geral, o seu uso na forma de pastejo rotacionado (MACIEL et al, 2013). Dentre os diversos cultivares, Panicum maximum cv.…”

Section: Gênero Panicumunclassified

Caracterização e restrições de forrageiras indicadas para as diferentes espécies de animais de produção – revisão

Amorim

Silva²,

Sousa³

et al. 2017

R. Eletr. Cient. da Uergs

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ResumoA escolha adequada das forrageiras, sejam elas de Ciclo C3 ou C4, para os diferentes animais de produção é importante, pois algumas forrageiras podem causar danos à saúde do animal quando fornecida inadequadamente para determinada espécie de animal. Nesse sentido, utilizar as novas técnicas de manejo, as quais consideram as alturas de entrada e saída dos animais de cada cultivar forrageiro (não negligenciam variações climáticas e de solo existente nas diferentes regiões do país), são indispensáveis para que se tenha uma

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“…The study area is covered by grasslands for Nellore cattle. The most common tropical forage for Nellore cattle is Panicum maximum pasture (Maciel et al, 2013). The maximum height for this grass is between 0.25 m to 0.50 m, because it provides optimal net forage accumulation with a higher leaf-to-stem ratio and delays senescence of the grass (Da Silveira, Cunha, Difante, Pena, Da Silva, & Sbrissia, 2010).…”

Section: Flood Duration Hazardmentioning

confidence: 99%

Analysis of exposure to vector-borne diseases due to flood duration, for a more complete flood hazard assessment: Llanos de Moxos, Bolivia

Gomez

Kure

Udo

et al. 2017

Ribagua

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Flood hazard is usually assessed based on the hydrodynamic characteristic of flood (water depth and velocity); however, in riverine floodplains, flood events last for several days. In such cases, the long exposure to flood water may cause additional health problems. Nevertheless, usually flood hazard studies do not consider possible hazards due to flood duration. This paper presents a flood hazard assessment methodology for considering flood duration and exposure to vectorborne diseases, and compares flood hazard maps that include and neglect flood duration. Results from a two-dimensional hydrodynamic flood simulation combined with entomological concepts identify any mosquito-breeding pools. Proximity analyses based on mosquito flying range define the areas exposed to mosquitos; hence, to vector-borne diseases. Results were compared with the probability of mosquito occurrence, showing that solely the consideration of flood depth hazard leads to a false flood hazard assessment, under-predicting the flood hazard. Important cities and areas initially considered safe zones may be exposed to health hazards, due to flood duration. Inclusion of flood duration improves flood hazard assessment; hence, improves flood management plans. Maximum flood depth for oviposition (MFDO) and minimum flood duration (MFD) are important variables for defining mosquito-breeding pools. MFDO is the most uncertain variable. Discussion includes advantages in flood hazard assessment and present methodological limitations.Análisis de exposición a enfermedades vectoriales por la duración de inundación para una evaluación más completa de amenazas por inundación: Llanuras de Moxos, Bolivia RESUMENLas amenazas por inundaciones generalmente son evaluadas en base a las características hidrodinámicas de la inundación: profundidad y velocidad. Sin embargo, en planicies de inundación, las inundaciones pueden llegar a durar varios días. En tales casos la exposición prolongada al agua inundada puede generar problemas de salud. Sin embargo, generalmente los estudios de inundación no consideran las amenazas debido a la duración de la inundación. El presente artículo presenta una metodología para evaluar amenazas de inundación considerando la duración de la inundación y la exposición a enfermedades transmitidas por vectores, y realiza una comparación entre mapas de amenaza por inundación, tanto incluyendo y sin incluir duración. Los resultados de una simulación hidrodinámica de dos dimensiones fueron combinados con conceptos de entomología, a fin de identificar criaderos de mosquitos. Luego, se realizó un análisis de proximidad basado en sus distancias de vuelo, a fin de identificar las zonas expuestas a mosquitos; y por lo tanto, expuestas a enfermedades vectoriales. Los resultados fueron comparados con la probabilidad de ocurrencia de mosquitos. Considerar solo la profundidad de inundación hace subestimar las amenazas por inundación. Importantes zonas urbanas que inicialmente eran consideradas como zonas seguras pueden estar expuestas a amenazas ...

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Performance of Nelore cattle on Panicum maximum pastures in the Brazilian Cerrado

Cited by 23 publications

References 3 publications

Structure of massai grass pasture grazed on by sheep supplemented in the dry season

Structure of massai grass pasture grazed on by sheep supplemented in the dry season

Caracterização e restrições de forrageiras indicadas para as diferentes espécies de animais de produção – revisão

Analysis of exposure to vector-borne diseases due to flood duration, for a more complete flood hazard assessment: Llanos de Moxos, Bolivia

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