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The objective of this work was to explain the cause and effect estimates on corn yield as a function of planting speed. The study was conducted from January 21 to June 15, 2019, at Fazenda Invernadinha, rural area of ​​the municipality of Mineiros, GO, Brazil. The experimental design consisted of randomized blocks, corresponding to five tractor planting velocities (4, 6, 8, 10 and 12 km h-1), in 4 replicates, where each plot consisted of 8 300 m long lines spaced at each 0.9 m, for a population of 60.000 plants ha-1. Sowing was carried out in no-till system after soybean harvest. A John Deere tractor and planter assembly were used, models 7715 (182 hp horsepower) and 2115 CCS Vacumeter (8 rows of 0.9 m respectively) with 30-hole 30 mm seed discs. Data were submitted to the assumptions of the statistical model, verifying the normality and homogeneity of the residual variances, as well as the additivity of the model. The analyzes were performed in the Rbio R interface, besides the Genes Software. It was concluded that the plant population is the variable that most influences the cause and effect estimates on corn yield. For high corn yields it is recommended that the tractor planting speed be adjusted to 6 km h-1.

Brazil has the largest commercial cattle herd in the world. With the growing export demand, comes concern about the harmlessness of commercialized meat, as numerous pathogens are transmitted by food, this study aimed to analyze the occurrence of beef contamination by Salmonella sp and other bacteria of the Enterobacteriacea family in minced beef sold in butchers at Mineiros City, Goiás. Twenty randomly acquired samples were analyzed from 20 commercial establishments in the municipality. The samples were submitted to conventional bacterial research for detection of Salmonella sp and other bacteria indicators of sanitary quality. In addition, eight criteria recommended by Good Manufacturing Practices in establishments were observed. The results of microbiological analysis revealed that five samples were contaminated by E. coli; four samples by Pseudomonas sp., eight by Citrobacter sp., and one sample was contaminated by Salmonella sp. In the verification of hygienic-sanitary conditions, it was detected that in most establishments, the manipulators did not use caps, gloves, apron, as well as the hand washing procedure. In addition, the use of white uniforms was verified in 10 establishments (50%); the adequacies related to the presence of refrigerated or ventilated environment; floor, wall, and exhibitors cleaning; were detected in most establishments. It was identified the occurrence of Salmonella sp., and other bacteria of the Enterobacteriacea family, in samples of minced beef meat sold in Mineiros, Goiás. Therefore, it can be inferred that the non-proper application of GMP may have contributed to the occurrence of contamination in the samples.

RESUMO: Diante da necessidade de gerar informações para a adequada implantação do sistema integração agricultura-pecuária, o presente trabalho foi proposto com o objetivo de avaliar, em área irrigada, os atributos do solo em modalidades de semeadura de três espécies de forrageiras em consórcio com o milho de verão com produção de palha para o feijão em sucessão, bem como os efeitos desses tratamentos no solo. O ensaio foi conduzido nos anos agrícolas 2012/2013 na Fazenda de Ensino, Pesquisa e Extensão da UNESP/Ilha Solteira-SP, localizada no município de Selvíria, Mato Grosso do Sul. Com um Latossolo vermelho distrófica textura argilosa. O delineamento experimental foi em blocos casualizados com sete tratamentos em esquema fatorial 3x2+1 com 4 repetições. Os tratamentos foram constituídos por três espécies de forrageiras e duas modalidades de consórcio das forrageiras com as forragens na linha de semeadura do milho, juntamente com o adubo e na entre linha do milho e uma controle sem consorciação. No solo foram efetuadas as análises químicas e físicas. A análise de variância não detectou diferenças significativa estatísticas na produtividade do milho e do feijão com uso das forragens em todos os tratamentos avaliados. Na matéria orgânica a profundidades 0,20 a 0,30 m, onde o tratamento milho exclusivo apresentou o maior valor de matéria orgânica com uma média de 15,75 g dm SOIL ATTRIBUTES ON PLANTING MODE IN CORN INTERCROPPING WITH FORAGE SUMMARY:Given the need to generate information for the proper implementation of the agriculture -livestock integration system, the present work was proposed with the objective of evaluating, in irrigated area, the attributes of the soil in sowing modalities of three forage species in consortium with maize Production of straw for the bean in succession, as well as the effects of these treatments on the soil. The trial was conducted in the agricultural years 2012/2013 at the Teaching, Research and Extension Farm of UNESP / Ilha Solteira-SP, located in the municipality of Selvíria, Mato Grosso do Sul. With a clayey dystrophic red Latosol. The experimental design was randomized blocks with seven treatments in a 3x2+1 factorial scheme with 4 replicates. The treatments consisted of three fodder species and two types of forage consortium with the fodder in the corn sowing line, together with the fertilizer and in the maize line and a control without intercropping. Chemical and physical analyzes were carried out in the soil. The analysis of variance did not detect statistically significant differences in yield of maize and beans with forage use in all evaluated treatments. In the organic matter at depths 0.20 to 0.30 m, where the treatment exclusive corn presented the highest value of organic matter with a mean of 15.75 g dm . The resistance to penetration in the lines was quite discreet according to the average of the treatments studied, except for the depth of 0.60 m where it presented the highest values in the line with treatment 2 obtaining a mean of 33.75 kg cm -3 and in the line ...

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Detecção e identificação de Eimeria sp em galinhas caipiras produzidas no município de Mineiros, Goiás Detection and identification of Eimeria sp in free-range chickens produced in Mineiros county, Goiás

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Experimental restoration using tree seedlings is a common strategy for accelerating succession on degraded post-agricultural land formerly occupied by Cerrado vegetation. Seedling growth in degraded tropical lands is constrained by various factors. The goal of this study was to evaluate the seedling growth and survival of seven native tree species used to accelerate forest recovery in a gully area with stressful environmental conditions. The experimental design involved fenced and unfenced blocks, presence and absence of fertilization and use of an adhesive to prevent ant herbivory (four treatments with four replicates). Seedlings were planted in December 2006 and collection of data on seedling basal diameter, height, mortality and herbivory started on January 24th 2007 and continued every three months, until final data collection on January 31st 2009 (9 measurement dates). Overall seedling survival was 38 % and protecting seedlings did not influence growth, but seedlings grew faster in response to the addition of fertilizer containing N, P and K. The use of the adhesive Tanglefoot to exclude leaf cutter ants had no influence on growth. Fencing reduced seedling mortality, but combining fencing with Tanglefoot did not. Nutrient availability limits seedling growth and survival in the gully. Direct planting of seedlings of native trees may accelerate succession in degraded Cerrado lands subject to interventions that overcome constraints on seedling growth and survival.