Trevo-persa - uma forrageira de duplo propósito.

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Qualidade do feno de hemártria (Hemarthria Altissima) cortado em diferentes datas.

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Cobertura vegetal e produtividade da soja no sistema de plantio direto, nas várzeas.

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Qualidade do feno de capim nilo (acroceras macrum) cortado em diferentes épocas.

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Natural food intake and its contribution to tambaqui growth in fertilized and unfertilized ponds.

Natural food available in ponds can complement formulated feed in fed aquaculture. This study elucidated the natural food intake and its contribution to tambaqui (Colossoma macropomum) growth in fertilized and unfertilized ponds, using stable isotope and stomach contents analyses. Additionally, it described the impact of fertilization management on natural food availability, fish performance, and production costs. Tambaqui juveniles (93.8 ± 15.0 g) were stocked (0.55 fish/m2) in fertilized (Fert) and unfertilized (NoFert) ponds (600 m2) for a culture period of 10 months in quadruplicate. A lower food conversion ratio was observed in Fert ponds. The main natural food items ingested by tambaqui were insects, vegetables, and cladocerans. Plankton contributed 39.4% and 10.7% of muscle formation in Fert and NoFert ponds, respectively. Pond fertilization (2.45 g of nitrogen and 0.80 g of phosphorus per square meter every two weeks) did not significantly affect fish growth, survival, or productivity but had a slightly influence on water quality parameters. However, fertilization increased the zooplankton density (through phytoplankton) in the water, thereby increasing autochthonous food availability for tambaqui consumption. This species demonstrates the ability to alternate between natural food sources and commercial feed without compromising its development. Consequently, tambaqui exhibits suitability for farming within restorative and integrated aquaculture systems as well as intensive systems reliant on commercial feed

Evaluation of chitosan for in vitro control of Colletotrichum tamarilloi and anthracnose on scarlet eggplant fruit.

This study aimed to evaluate the effect of chitosan-based coating on in vitro inhibition of Colletotrichum tamarilloi and anthracnose control of scarlet eggplant fruits.elocation e2621

Avaliação de cultivares de sorgo forrageiro em área de cerrado.

Sorgo forrageiro para ruminantes, especialmente os bovinos, pode ser feita de várias maneneiras, principalmente sob a forma verde em pastejo direto

Perspectivas da pesquisa em ovinocultura de corte no Centro-Oeste.

O presente documento, tem como objetivo fundamental, conhecer o panorama nacional da ovinocultura, assim como, identificar sua origem, buscando estabelecer a relação da evolução do rebanho desde seu primeiro registro, até o estado da arte no Centro-Oeste brasileiro.bitstream/item/52335/1/DOC1841.pd

Biofabrication of customized bone grafts by combination of additive manufacturing and bioreactor knowhow

This study reports on an original concept of additive manufacturing for the fabrication of tissue engineered constructs (TEC), offering the possibility of concomitantly manufacturing a customized scaffold and a bioreactor chamber to any size and shape. As a proof of concept towards the development of anatomically relevant TECs, this concept was utilized for the design and fabrication of a highly porous sheep tibia scaffold around which a bioreactor chamber of similar shape was simultaneously built. The morphology of the bioreactor/scaffold device was investigated by micro-computed tomography and scanning electron microscopy confirming the porous architecture of the sheep tibiae as opposed to the non-porous nature of the bioreactor chamber. Additionally, this study demonstrates that both the shape, as well as the inner architecture of the device can significantly impact the perfusion of fluid within the scaffold architecture. Indeed, fluid flow modelling revealed that this was of significant importance for controlling the nutrition flow pattern within the scaffold and the bioreactor chamber, avoiding the formation of stagnant flow regions detrimental for in vitro tissue development. The bioreactor/scaffold device was dynamically seeded with human primary osteoblasts and cultured under bi-directional perfusion for two and six weeks. Primary human osteoblasts were observed homogenously distributed throughout the scaffold, and were viable for the six week culture period. This work demonstrates a novel application for additive manufacturing in the development of scaffolds and bioreactors. Given the intrinsic flexibility of the additive manufacturing technology platform developed, more complex culture systems can be fabricated which would contribute to the advances in customized and patient-specific tissue engineering strategies for a wide range of applications.This work was supported by the NHMRC, the Australian Research Council and Hans Fischer Senior Fellowship, IAS-TUM. Pedro Costa acknowledges the Portuguese Foundation for Science and Technology for his PhD grant (SFRH/BD/62452/2009)

Produção de forrageiras visando a alimentação animal e cobertura vegetal para o sistema de plantio direto nas planícies costeiras do Rio Grande do Sul.

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