Progresso temporal da requeima e do Oídio em tomateiro orgânico em diferentes sistemas e níveis de irrigação

O objetivo do presente estudo foi analisar o progresso temporal da requeima e do oídio em tomateiro orgânico produzido em diferentes sistemas e níveis de irrigação.bitstream/item/103064/1/bpd-74.pd

Produção orgânica de tomate com diferentes sistemas e sníveis de irrigação e coberturas de solo.

Objetivou-se avaliar a produção de tomate orgânico utilizando diferentes sistemas e níveis de irrigação, nas condições da Região Centro-Oeste do Brasil.Trabalho apresentado no VII Congresso Brasileiro de Agroecologia, Fortaleza, 2011

Avaliação de sistemas de irrigação e estratégias de manejo na produção orgânica de tomate de mesa.

Avaliou-se a produção de tomate em cultivo orgânico utilizando-se diferentes sistemas de irrigação e estratégias de manejo, no Distrito Federal.Suplemento. Trabalho apresentado no 52. Congresso Brasileiro de Olericultura, Salvador, 2012

Incidência da murcha bacteriana em tomateiro orgânico sob diferentes sistemas de irrigação, níveis de água e coberturas de solo.

Avaliou-se a incidência da murcha bacteriana (Ralstonia solanacearum) em tomateiro orgânico cultivado em diferentes sistemas de irrigação, níveis de água e coberturas de solo, nas condiçoes de Brasil Central.Resumo 10688. Trabalho apresentado no 7. Congresso Brasileiro de Agroecologia, Fortaleza, 2011

Intake, apparent digestibility, and methane emission in bulls receiving a feed supplement of monensin, virginiamycin, or a combination.

The aim of this study was to evaluate the effects of the feed supplements monensin, virginiamycin, or a combination of the two, on intake, digestibility, and methane emission in the male cattle breed F1 Holstein· Gir. We used acomplete randomised design with four treatments consisting of the control, monensin, virginiamycin, and a combination of the two. The basal diets were composed of sorghum silage with Tanzania grass and the concentrate in the 1 : 1 ratio. Nutrient intake (P>0.05) and the apparent digestibility coefficients (P>0.05) were not affected by the supplementation with monensin, virginiamycin, or both. The combination of the supplements did affect methane emission (P<0.05) when expressed in L/day, L/(kg DM), and L/(kg DM digestible). The lowest methane production was obtained with the combination of the supplements

Raineya orbicola gen. nov., sp. nov. a slightly thermophilic bacterium of the phylum bacteroidetes and the description of raineyaceae fam. nov

An isolate, designated SPSPC-11T, with an optimum growth temperature of about 50°C and an optimum pH for growth between 7.5 and 8.0, was recovered from a hot spring in central Portugal. Based on phylogenetic analysis of its 16S rRNA sequence, the new organism is most closely related to the species of the genus Thermonema but with a pairwise sequence similarity of &lt;85 %. The isolate was orange-pigmented, formed non-motile long filaments and rod-shaped cells that stain Gram-negative. The organism was strictly aerobic, oxidase-positive and catalase-positive. The major fatty acids were iso- C15:0, iso-C15: 0 2-OH and iso-C17: 0 3-OH. The major polar lipids were one aminophospholipid, two aminolipids and three unidentified lipids. Menaquinone 7 was the major respiratory quinone. The DNA G+C content of strain SPSPC-11T was 37.6 mol% (draft genome sequence). The high quality draft genome sequence corroborated many of the phenotypic characteristics of strain SPSPC-11T. Based on genotypic, phylogenetic, physiological and biochemical characterization we describe a new species of a novel genus represented by strain SPSPC-11T (=CECT 9012T=LMG 29233T) for which we propose the name Raineya orbicola gen. nov., sp. nov. We also describe the family Raineyaceae to accommodate this new genus and species. © 2018 IUMS.This research was supported by the European Union’s Horizon 2020 Research and Innovation programme under Metafluidics Grant Agreement No 685474. This work was also supported by FEDER funds through the Operational Programme Competitiveness Factors – COMPETE 2020 and national funds by FCT – Foundation for Science and Technology under the strategic project UID/NEU/04539/2013

Peso e rendimento de carcaça de cordeiros de diferentes grupos genéticos criados no semiárido brasileiro.

Resumo: Objetivou-se com esse estudo avaliar o peso e rendimento de carcaça de cordeiros de diferentes grupos genéticos Morada Nova x Morada Nova, Rabo Largo x Morada Nova e Santa Inês x Morada Nova. Foram utilizados 15 cordeiros machos, não castrados, com peso vivo médio inicial de 6,7 kg, em delineamento inteiramente casualizado, com cinco repetições em cada tratamento. Os animais foram mantidos em pastagem nativa da Caatinga e ao final da tarde suplementados com volumoso e ração concentrada a base de milho, farelo de soja e calcário, com água e sal mineral à vontade. Os animais foram abatidos ao atingirem oito meses de idade, com aproximadamente 25 kg de peso vivo. Após o abate, registraram-se os pesos e rendimentos da carcaça. Os dados foram submetidos a análise de variância e as médias comparadas pelo teste de Duncan pelo programa estatístico SAS®. Houve efeito do cruzamento para as variáveis peso vivo ao abate (PVA), peso da carcaça quente (PCQ), peso da carcaça fria (PCF) e rendimento biológico verdadeiro (RBV). Os cordeiros cruzas Rabo Largo x Morada Nova e Santa Inês x Morada apresentaram valores superiores para PVA, PCQ, PCF e RBV. Os grupos genéticos estudados proporcionam pesos de carcaça diferentes, o que denota que os mesmos podem ser usados de acordo com os objetivos dos produtores e do sistema de produção. [Weight and Yields of carcass of lambs of different genetic groups created in the Brazilian semiarid]. Abstract: The aim was to evaluate the weight and yield of carcass of lambs of different genetic groups: Morada Nova x Morada Nova, Rabo Largo x Morada Nova and Santa Ines x Morada Nova. Were used fifteen lambs, not castrated, with an average live weight of 6.7 kg, in a randomized design with five replicates in each treatment. The animals were kept on native pasture Caatinga and late afternoon supplemented with forage and ration concentrate based on corn, soybean meal and limestone, with access water and mineral salt ad libitum. The animals were slaughtered to reached eight months of age, with approximately 25 kg live weight. After slaughter, were recorded the weights and yield of carcass. Data were submitted to analysis of variance and means were compared by Duncan test by SAS® software. There was effect of crossing to the variables live weight at slaughter (LWS), hot carcass weight (HCW), cold carcass weight (CCW) and true biological yield (TBY). The crossbred lambs Rabo Largo x Morada Nova and Santa Ines x Morada Nova showed higher values for LWS, HCW, CCW and TBY. The genotypes utilized this research did provide weights different, which indicates that they may be used in accordance with the objectives of the producers and production system

Producao de mudas de maracujazeiro-azedo por enxertia em estacas herbaceas enraizadas de especies de passifloras silvestres.

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Residual feed intake as an efficiency metric for pre-weaning dairy calves: what do we know?

Dairy cattle systems have targeted improvements in feed efficiency by selecting animals that can convert less feed into more products. Residual feed intake (RFI) has been the index of choice when selecting dairy cattle for feed efficiency. Nonetheless, RFI studies have focused on lactating cows, and the crucial importance of pre-weaning efficiency on farm profitability and cow productivity has been mostly neglected. This review discusses the current knowledge of how RFI divergence relates to nutrient metabolism in pre-weaning dairy calves, including the advantages and limitations of evaluating RFI in this phase. Existing literature indicates that nutrient utilization, energy metabolism, protein metabolism, vitamin metabolism, intestinal development, and hindgut bacterial populations may be implicated in RFI divergence between pre-weaning calves. Techniques developed to date to evaluate RFI in this phase are still evolving to better adapt to the unique characteristics of this phase, and more research is needed to fill in the gaps in our current understanding of early-life feed efficiency divergence in cattle. However, current results suggest great potential for selecting high-efficiency calves while in pre-weaning to accelerate the progress of genetic selection in dairy cattle