Revista Agraria Academica
EISSN : 2595-3125
Current Publisher: Revista Agraria Academica (10.32406)
Total articles ≅ 330
Latest articles in this journal
Revista Agraria Academica, Volume 4; doi:10.32406/v4n3/2021/6-16/agrariacad
The objective was to evaluate the degree of knowledge and the opinion of 95 Veterinary Medicine students from a private higher education institution in Recife-PE, regarding the Famacha method. 94.7% of respondents lived in urban area and 5.3% lived in rural area. 76% said they had never heard of the method and only 29.47% stated that it had been discussed in some discipline of the course. As for the acquisition of the Famacha card, 93.7% did not know the procedures. The degree of knowledge demonstrated by students of Veterinary Medicine on the Famacha method is low, which indicates the need to explain this tool in subjects offered during the course.
Revista Agraria Academica, Volume 4; doi:10.32406/v4n2/2021/5-12/agrariacad
The objective of this work was to evaluate the potential of the processed coconut fiber (coconut powder) and composted pine bark, isolated and in combination, in promoting the growth of umbuzeiro seedlings. This work was conducted in a greenhouse in a completely randomized block experimental design, with five treatments and four replications. The treatments consisted of the following formulations, in volumetric proportions: 100% pine bark (CP); 75% CP + 25% coconut powder (PC); 50% CP + 50% CP; 25% CP + 75% CP and; 100% PC). The coconut powder substrates or the formulation containing 75% coconut powder + 25% composted pine bark provided Imbu seedlings with higher vegetative quality. The lower density, higher total porosity and higher percentage of available water were the physical characteristics of the substrates that most influenced the growth of Imbu seedlings.
Revista Agraria Academica, Volume 4; doi:10.32406/v4n2/2021/95-100/agrariacad
Biofloc technology (BFT) is an approach in aquaculture that has gained much interest and is currently widely being studied and applied. In this study, silver catfish (Rhamdia quelen) post-larvae were reared in a BFT system, at different stocking densities (10, 20, 30 and 40 post-larvae/L), for 21 days. After two weeks, fish larvae subjected to the higher stoking density showed greater weight gain. At the end of the trial (21 days), no relevant differences between treatments were observed related to growth parameters. However, post-larvae reared at the stocking density of 20 post-larvae/L presented a higher survival rate.
Revista Agraria Academica, Volume 4; doi:10.32406/v4n2/2021/43-52/agrariacad
This study aimed to evaluate the antimicrobial activity of clove (Syzygium aromaticum), citronella (Cymbopogon winteranius) and melaleuca (Melaleuca alternifolia) essential oils (EOs) on CoPS. Of the 67 cerumen samples collected, 17 CoPS strains were isolated. Using the microdilution method in a 96-well plate, EOs were added at a maximum concentration of 10% and minimum of 0.04%. It is concluded that the EOs of clove and citronella demonstrate antimicrobial activity against strains of CoPS isolated from canine external otitis. At the concentrations used, melaleuca essential oil did not show any bacteriostatic or bactericidal effects.
Revista Agraria Academica, Volume 4; doi:10.32406/v4n2/2021/78-86/agrariacad
The objective of this work was to evaluate microclimatic and edaphic variations in silvopastoral systems, a system in which forest, forage species and animals that graze in consortium are integrated for production. The research was conducted at Fazenda Boa Safra located in the municipality of Belterra. The data were collected in a timely manner in October 2016 in two environments: four forage areas and four arboreal areas with the species: Andiroba (Carapa guianensis Aubl), African Mahogany (Khaya ivorensis A. Chev.), Teak (Tectona grandis L. f.) and Cumaru (Dipteryx odorata Willd.). The variables studied were temperature, soil moisture, litter stock and canopy cover. The results indicate that coumaru is the species that offers better thermal comfort compared to other species, while andiroba stood out in the best litter supply. The role of vegetation cover promoted by trees in the silvopastoral system is highlighted, promoting a better surface temperature of the soil (2 cm deep) in relation to pasture.
Revista Agraria Academica, Volume 4; doi:10.32406/v4n2/2021/87-94/agrariacad
The aim of this study was to compare the analgesic effects of continuous infusion of fentanyl, dexmedetomidine, or maropitant. The animals received pre-anesthetic medication and anesthetic induction. Subsequently, continuous infusion of drugs was instituted, distributed in the following groups: fentanyl, dexmedetomidine, and maropitant. During the surgical procedure, the analgesic effects were evaluated by recording the cardiorespiratory parameters at the moments of greatest pain stimulus. When evaluating analgesic effects, the maropitant group showed greater stability in cardiorespiratory parameters compared to the fentanyl and dexmedetomidine group. From this study, it is suggested that continuous infusion of maropitant has analgesic effects similar to fentanyl and greater than dexmedetomidine.
Revista Agraria Academica, Volume 4; doi:10.32406/v4n2/2021/21-28/agrariacad
The search for melon with high physiologic quality is essential to have competitive material compared to the imported. The analysis of images realized through X-ray is a technique that verify internal morphology and relates with the seed performance. In this way, the goal of this study was to evaluate the seed physiological quality from melon of Anton cultivar in function of different phase of maturation of stored and non-stored fruits through the visualization of internal morphology of seeds using X-ray images. The experiment was managed from December of 2016 to February of 2018. The yellow-melon fruits analyzed were cultivated in Embrapa Hortaliças greenhouse. The fruits were picked in five distinct periods: 30, 45, 60, 75, and 90 days after anthesis (DAA). In each period were picked a total of 30 fruits where 15 fruits had their seeds immediately extracted after been picked, and 15 fruits were stored. The 15 fruits stored were packed in plastic box properly identified for a period of fifteen days in airy place with room temperature. The 30 fruits were subjected to the same process of seed extraction, washing and drying. The dried seeds from stored and non-stored fruits were submitted to the following analyses: X-ray test and the germination test. The treatment of 60 DAA over storage shown better performance with 67% in the germination test on the first counting and 87% of normal seedlings. This result is similar to the noted in the X-ray test where the treatment demonstrated 96% of filled seeds showing the viability of this tool to determine physiologic quality in the melon seeds.
Revista Agraria Academica, Volume 4; doi:10.32406/v4n2/2021/13-20/agrariacad
The objective of the work was to evaluate the effect of insecticide and fungicide in the treatment of wheat seeds. The treatments were, T1: control, T2: thiamethoxam (1.5 ml / kg of seed), T3: thiamethoxam (3 ml / kg of seed), T4: pyraclostrobin + methyl thiophanate + fipronil (PTF) (2.0 ml / kg of seed) and T5: PTF (4.0 ml / kg of seed). The treatment with TPF in the dose of 4.0 ml / kg of seed stood out over the other treatments, providing positive effects on the development of the culture, since thiametoxam in the dose of 3.5 ml / kg of seed, showing no difference between treatments, and provided a negative effect on the initial development of the plants.
Revista Agraria Academica, Volume 4; doi:10.32406/v4n2/2021/29-42/agrariacad
The present article deals with the dissemination of fake news about the use of medicinal plants "capable" of curing and treating the symptoms of COVID-19. Through research on websites, six fake news related to supposed cures, published between 2020 and 2021, were selected, with subsequent textual analysis of each one, whose objective was to distinguish the true facts from the false ones. The results of the research indicate that according to the scientific literature, six of the nine plants used for treatment have active ingredients that are toxic if consumed exaggeratedly. It is concluded that medicinal plants should be used only as a vitamin supplement, capable of helping to strengthen the immune system.
Revista Agraria Academica, Volume 4; doi:10.32406/v4n2/2021/70-77/agrariacad
The objetive of this study was to evaluate the effects of adding two types of banana pulp, combined with varying concentrations of sacarose on the growth of Cattleya sp. plantlets. Hybrid LCTV-01 seedlings (Cattleya labiata rubra x Cattleya labiata semi alba) made to germinate in vitro were inoculated in an MS culture medium with half the concentration of nutrients and supplemented with 60 g.L-1 'maçã' or 'terra' banana pulp in addition to different concentrations of sacarose (10, 20 and 30 g.L-1. The entirely randomized experimental design was chosen, implemented in seven treatments, ten repetitions and eight seedlings per repetition. After 160 days of in vitro cultivation, variables of fresh weight, number of leaves, number of roots and length of the longest root were evaluated. It was found that the addition of banana pulp of any of the analyzed cultivars promoted better seedling growth. Additionally, the 20 g.L-1 sacarose concentration yielded better results for the analyzed variables.