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Seed Quality Evaluation by Tetrazolium Staining of Parkia multijuga Benth

Agricultural Sciences 2018年第5期9卷 577-586页

作者： Marcelle Auday Costa elizabeth santos cordeiro shimizu Noemi Vianna Martins Leao Hugo Alves Pinheiro Departamento de Ciencias Florestais Universidade Federal Rural da AmazoniaBelemBrazil Embrapa Amazonia Oriental BelémBrazil Research and Technological Development of Universidade Federal Rural da Amazonia BelémBrazil

The purpose of this study was to develop a staining pattern through tetrazolium test to evaluate seed viability of Parkia multijuga Benth (fava-arara-tucupi). The seeds were scarified, soaked into water and distilled for 48 hours for tegument removal and then immersed in a 0.05%;0.1%;and 0.3% tetrazolium solution for 6;18 and 24 hours at 35°C, in the dark. The evaluation was performed on the basis of stain intensity and aspect of the tissues. Based on color patterns, the seed images were classified in eight viability classes. Those results were compared with the germination test in a laboratory. The treatment in concentration of 0.1% for 6 hours was considered adequate for the specie, considering the adequate staining and time for analysis.

关键词： Forest Seeds Fava-Arara-Tucupi Viability Amazon

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Development and Body Composition of Quarter Horse Foals during Nursing

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Open Journal of Veterinary Medicine 2014年第11期4卷 276-280页

作者： Monica Miranda Hunka Helena Emília Cavalcanti da Costa cordeiro Manso Ramona Bastos Bernardo elizabeth Regina Rodrigues da Silva Lúcia Maia Cavalcante Ferreira Hélio cordeiro Manso Filho Núcleo de Pesquisa Equina Departamento de Zootecnia Universidade Federal Rural de Pernambuco Recife Brazil

The monitoring and development of foals, based on biometric indices, and the determination of body composition could be important for genetic improvement and the elaboration of nutritional plans for horses. Considering that little information was available, the aim of the present study was to assess the growth and determine the body composition of suckling Quarter Horse foals. Animals (n = 46) of both sexes were monitored monthly from birth until the fifth month of age, using an ultrasound device and the following measurements: Wither Height (WH);Chest Perimeter (CP);Cannon Bone Circumference (CBC) Cannon Bone Girth (CG);Body Mass (BM);and Rump Fat Thickness (RFT). These tests determined the Fat-Free Mass (FFM), BM, Fat Percentage (FP) and Fat Thickness (FT). The data were analyzed using ANOVA and Tukey’s test, with differences considered statistically significant when P ≤ 0.05. The results demonstrated that the parameters analyzed changed significantly during the study period. The BM was ~41 at birth and ~177 kg at the point of weaning. Conversely, the FM was ~3.8 at birth and 18.1 kg at the point of weaning. The FFM was ~37 and ~160 kg at the time of birth and weaning, respectively. The FP varied from 9.3 at birth to 9.54 at weaning. The mean FT was ~1.39 and ~1.91 cm at birth and weaning, respectively. The WH measured ~91 at birth and 116 cm at weaning. In conclusion, suckling foals gain BM quickly from the time of birth to the time of weaning. The main cause of this gain is FFM. Therefore, due to the significant changes in the parameters studied herein, it is important to monitor these values in order to prevent nutritional imbalances.

关键词： Body Mass Fat-Free Mass Fat Percentage Horse Ultrasound

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