A cromatografia é amplamente utilizada para determinar a distribuição de uma mistura em duas fases. Essa técnica possui diversidade de utilização que compreende desde processos mais sofisticados até mais simples. O conhecimento dos pigmentos existentes nos vegetais, bem como em suas folhagens, pode ser adquirido através da técnica da cromatografia em papel filtro, utilizando-se materiais alternativos de alta eficiência e baixo custo. O experimento foi realizado no Laboratório de Química do Instituto Federal de Educação, Ciência e Tecnologia do Ceará no campus Crato-CE. Para a visualização da presença do aparecimento dos pigmentos fotossintéticos, foram usadas folhas das espécies de Veludo-roxo (Gynura sarmentosa D.C.), Nim (Azadirachta indica A. Juss) e Mangueira (Mangifera indica L.). Foram utilizadas oito folhas de cada espécie, bem fragmentadas em almofariz. Foi adicionado álcool 70% para que os pigmentos fotossintéticos fossem melhor visualizados. Após esse processo, foi separado o líquido resultante da trituração das folhas. Posteriormente, foram adicionados os papéis filtro para posterior análise cromatográfica. Após 10 minutos de corrida houve a divisão dos corantes no papel filtro, sendo possível a observação de pigmentos clorofilados e/ou carotenoides. Isso se deve a composição química de cada uma das plantas, bem como, a diferença de polaridade.
Sorghum is a crop of great interest in animal feed in semiarid regions. The environment and nitrogen fertilization can influence its productive potential and nutritional quality. This study aimed to evaluate sorghum biomass genotypes associated or not with Azospirillum brasilense managed at different sowing sites on the yield and nutritional value of silage. We evaluated 3 sorghum genotypes combined with 3 fertilization strategies using urea, Azospirillum brasilense and the urea/A brasilense combination in two planting sites (Janaúba, MG, and Montes Claros, MG). A randomized block design was carried out in a 3 x 3 x 2 factorial arrangement of 3 genotypes, 3 fertilization strategies and 2 sowing sites. Azospirillum brasilense foliar spraying was carried out using a costal (Backpack) atomizer and for silage production, PVC silos with weight and length of 50 cm and 10 cm in diameter were used. There was no triple interaction between the studied variables. There were differences between genotypes and between sites for agronomic traits. Statistical differences were detected between genotypes and sites for chemical composition, and sorghum forage on digestibility evaluations. The region of Montes Claros has greater forage production and the region of Janaúba has better quality of silage. Biomass sorghum genotypes have higher forage production and the Volumax genotype has better silage quality.
The objective of the present study was to evaluate the productive performance and nutritional value of forage of wheat and triticale cultivars at different harvest times in the semiarid region of Minas Gerais. Eight wheat cultivars and two triticale cultivars harvested at three stages of plant development were evaluated: Rubberization, grain at the stage of soft mass and harvest maturation. The experimental design adopted was a randomized block in a factorial scheme 10 × 3, with three replicates, 10 cultivars and 3 developmental stages for plant collection. The main agronomic characteristics and nutritional value were evaluated of forage of the cultivars under study. The study demonstrated the potential of wheat and triticale cultivation for forage in the semiarid region of Minas Gerais. The mean dry matter yield of wheat cultivars was 5.90 t ha-1, 7.85 t ha-1 and 7.98 t ha-1 and triticale 6.47 t ha-1, 9.97 t ha-1 and 10.5 t ha-1 for the rubber harvesting stages, grain at the stage of soft mass and harvest maturation, respectively. For the average crude protein content, the wheat cultivars showed 15.07%, 9.13%, 10.60% and the triticale cultivars showed 14.4%, 9.31% and 10.05% for the harvest stages of rubber formation, grain at the stage of soft mass and harvest maturation, respectively. When evaluating the average levels of total digestible nutrients, the wheat and triticale cultivars showed an average of 48.90% and 48.67% in the rubber harvesting stage and 42.68% and 49.60% in the grain in the mass stage suave and 44.43% and 42.90% at harvest maturation. The highest yield of digestible dry matter was observed with the cultivars harvested at the grain stage at the soft mass stage. Triticale IPR 111 and Wheat IPR PANATY had greater productive potential and better nutritional quality for use as forage.
The objective of the work in question was to evaluate the ovarian function of Saanen goats supplemented with pequi oil. The experiment was carried out at the IFCE Ovine Caprinoculture vivarium, campus Crato. Eight pure Saanen goats were used, weighing an average of 1025,15 pounds, distributed in a completely randomized design with two treatments. The first treatment constituted soy oil as the lipid source and the second treatment with pequi oil. Two estrous cycles were evaluated to analyze the reproductive parameters of the females. In the first cycle, a non-castrated sheep was used as a ruffian to identify estrus, and the ovarian function was evaluated for the presence and number of follicles by ultrasound. In the second cycle, a Saanen was used in order to mate with the females. Ultrasound was performed to assess conception, fertility and prolificacy rates. The computer software SAEG 9.1 was used to analyze the values obtained. It was found that females supplemented with soybean oil stood out in comparison to goats treated with pequi oil, except for body weight, follicular diameter and body condition score, concluding that the use of pequi oil for Saanen goats it presents itself as an economically unfeasible alternative, as it has a higher acquisition value.
VCOINTERPDVAgro.0364 RESUMOA região semiárida possui clima quente e seco, o que se torna uma condição adversa para produção de plantas forrageiras, dentre elas, gramíneas. Para tanto, é necessário a obtenção do conhecimento de espécies que tenham dentre suas características, resistência a seca e desenvolvimento satisfatório em solos com carência nutricional, como o capim Buffel. A escassez hídrica é presente nessa região, uma vez que deve-se adotar medidas de irrigação que garantam o aporte de nutrientes necessários para determinada cultura e a água residuária proveniente da suinocultura (ARS) como alternativa pode ser capaz de suprir qualitativa e quantitativamente o potencial forrageiro do semiárido. Este estudo objetiva avaliar o uso de níveis de ARS no desenvolvimento de capim Buffel (Cenchrus ciliares). O experimento foi feito no Instituto Federal de Educação, Ciência e Tecnologia do Ceará, campus Crato, no setor do Departamento de Produção, Extensão e Pesquisa de 2017 a 2018. Foram utilizados cinco tratamentos com diferentes doses de ARS (T1: 0, T2: 375, T3: 750, T4: 1.125 e T5: 1.500 mL) com oito repetições em um delineamento em blocos casualizados (DBC) avaliando as variáveis de largura do limbo, altura da planta, diâmetro do colmo, número de folhas vivas e mortas e número, comprimento e largura de perfilhos aéreos. Os dados foram obtidos utilizando os Softwares Excel e R. O tratamento 3 foi o melhor observado para as variáveis de comprimento do limbo, altura da planta, número de folhas vivas e largura dos perfilhos aéreos, enquanto o tratamento 4 se sobressaiu em relação às variáveis de largura do limbo e número e comprimento de perfilhos aéreos. No entanto, a
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