RESUMOObjetivou-se com este experimento verificar a translocação de Mo aplicado em diferentes épocas do desenvolvimento da cultura da soja, pela determinação do teor em nódulos radiculares, folhas e grãos. O experimento consta de sete tratamentos instalados em blocos casualizados, e seis repetições. Os tratamentos foram constituídos pelas épocas de aplicação dos micronutrientes: 1) testemunha (sem aplicação); 2) Co e Mo via semente; 3) Co e Mo no estágio V 4 ; 4) Co e Mo no estágio V 6 ; 5) Co e Mo no estágio R 1 ; 6) Co e Mo no estágio R 3 ; e 7) Co e Mo via semente e no estágio R 3 . Nos tratamentos 2, 3, 4, 5 e 6, utilizaram-se as doses de 2,5 g ha -1 de Co e 80 g ha -1 de Mo, enquanto no tratamento 7forneceu 2,5 g ha -1 de Co e 20 g ha -1 de Mo nas sementes e no estádio R 3 foi feita uma aplicação de 400 g ha -1 de Mo. A partir da aplicação, foram coletadas 20 plantas por parcela durante 9 semanas consecutivas, enquanto nos tratamentos 5 e 6, as coletas foram feitas por 8 e 7 semanas consecutivas, respectivamente. Avaliou-se a translocação de Mo das folhas para os nódulos e grãos, o teor de nitrogênio foliar e nos grãos, teor de proteína e de Mo nos grãos e a produtividade da soja. Os resultados demonstraram que o Mo aplicado via foliar transloca para os nódulos e para os grãos na fase de granação; as aplicações de Mo via foliar ou nas sementes não influenciaram o rendimento da cultura, os teores de nitrogênio e de proteína nos grãos; e a aplicação de 400 g ha -1 de Mo no estágio R 3 aumentou os teores nos grãos. Termos para indexacão:Glycine max, micronutrientes, adubação molíbdica nas sementes e foliar. ABSTRACTThis study had the aim of evaluating the translocation of Mo applied at different times on the development of soybeans, determining their presence in soybean root nodules, leaves and grains. The assay was done in Fazenda Canadá, located in Uberlândia, MG. The experimental design was the one of randomized blocks with seven treatments and six repetitions. The treatments constituted of the following micronutrient application times: 1) control (without application); 2) Co and Mo via seed; 3) Co and Mo at the stage V4; 4) Co and Mo at the stage V6; 5) Co and Mo at the stage R1; 6) Co and Mo at the stage R3; and 7) Co and Mo at the via seed and stage R3. The doses 2.5 g ha -1 Co and 80 g ha -1 Mo were used in the treatments 2, 3, 4, 5 and 6, whereas for treatment 7, 2.5 g ha -1 Co and 20 g ha -1 Mo were used in the seeds, and at stage R3 400 g ha -1 Mo was applied. Twenty plants in each plot were collected weekly, for 9 weeks, except for treatments 5 and 6. Which were collected for 8 and 7 weeks, respectively. Molybdenum translocation from leaves to nodules and grains, and nitrogen in the leaves and grain, grain protein and molybdenum and culture yield were evaluated. The results had demonstrated that Mo applied on the leaves translocated to the nodules and grains in the filling phase; the applications of Mo on the leaves or on the seeds did not influence the yield of the culture, the protein and nitrogen...
The autonomic nervous system (ANS) plays a role in the regulation of the cardiovascular system through sympathetic and parasympathetic modulations, which act in an associated way in the regulation of homeostasis. This regulation exercised by the ANS is determined by numerous factors including breathing, stress, temperature, blood pressure and physical activity. Cardiac nerve regulation is influenced by obesity, but the autonomic response present in this disorder has not yet been elucidated. It is known that a 10% increase in body fat is able to lead to a decrease in parasympathetic action and an increase in heart rate. Heart Rate Variability (HRV) allows the evaluation of autonomic heart modulation through the ventricular depolarization intervals to the electrocardiogram (ECG), and provides information on the relationship and contribution of the ANS to the neural influence of heart rate control. The objective of the present study was to evaluate the HRV by means of an electrocardiographic examination in obese dogs with Body Condition Score (BCS) 8/9 and 9/9, comparing with HRV of the same animals, after therapy with therapeutic ration in the period of 6 months, as well as the comparison with control group with lean animals. With the results obtained in the present study, it can be inferred that probably the imbalance in the autonomic activity due to obesity in dogs is not the same as in humans and that a greater understanding of this regulation in these animals is necessary, especially considering their vagotonia. The diet program based on low-calorie ration reached approximately 10% and 20% of weight reduction after two and six months, respectively. Obesity raises HRV by increasing parasympathetic activity in the autonomic regulation of the heart in dogs.
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