https://repositorio.ufpb.br/jspui/handle/123456789/171 2026-11-06T17:02:19Z 2026-11-06T17:02:19Z Batista, Abraão Arthur dos Reis https://repositorio.ufpb.br/jspui/handle/123456789/39553 2026-10-09T06:11:32Z 2026-03-12T00:00:00Z

Título: Apresentação atipica de sertolioma em testiculo escrotal em cão geriatrico: Relato de caso Autor(es): Batista, Abraão Arthur dos Reis Orientador: Barbosa, Abraão Ribeiro Abstract: The present study aims to report an atypical case of a Sertoli cell tumor located in the scrotal testis of a geriatric dog, as well as to review the relevant literature on the clinical, pathological, and therapeutic aspects of this condition. Sertolioma represents a frequent testicular neoplasm in elderly dogs, classically associated with cryptorchidism, and possesses the ability to autonomously secrete estrogens, triggering the feminization syndrome and, in advanced stages, fatal myelotoxicity. The methodology is based on the description of the clinical, diagnostic, and surgical care of a twelve-year-old Poodle dog that presented progressive testicular enlargement, bilateral symmetrical alopecia, and gynecomastia. Laboratory evaluation ruled out the presence of bone marrow suppression, while abdominal ultrasonography confirmed severe enlargement and hypervascularization of the left testicle, associated with atrophy of the contralateral right testicle. The adopted treatment consisted of surgical intervention through bilateral orchiectomy combined with scrotal ablation, indicated due to the large dimensions of the tumor mass. The histopathological report confirmed the definitive diagnosis of a Sertoli cell tumor, evidencing the palisade cellular pattern in the left testicle and intense degeneration in the right one. The study concludes that this neoplasm requires inclusion in the differential diagnosis even in animals with descended testicles, and demonstrates that rigorous staging coupled with early surgical excision are fundamental measures to prevent irreversible damage to the bone marrow and ensure a favorable prognosis. Keywords: sertoli cell; neoplasm; histopathologica; feminization. Editor: Universidade Federal da Paraíba Tipo: TCC

2026-03-12T00:00:00Z Araújo, Gabriel Soares https://repositorio.ufpb.br/jspui/handle/123456789/39550 2026-10-09T06:11:34Z 2026-02-27T00:00:00Z

Título: Fenotipagem digital, caracterização biométrica e avaliação fisiologica de disporos de Spondias tuberosa Arruda Autor(es): Araújo, Gabriel Soares Orientador: Bruno, Riselane de Lucena Alcântara Abstract: The umbu tree (Spondias tuberosa Arruda) is an endemic species of the Caatinga biome with high socioeconomic and ecological value. However, intense extraction and fragmentation of its natural habitat require effective strategies for conservation and selection of elite genotypes. This study aimed to evaluate and select umbu tree matrices using classical biometrics, physiological tests, and digital morphometric analysis of diaspores from two populations in the state of Paraíba (Algodão de Jandaíra and Campina Grande). Diaspores were subjected to physical characterization (weight, length, and width), physiological evaluation (percentage of emergence, mean emergence time, and emergence speed index), and digital morphometric analysis using ImageJ® software (area, perimeter, circularity, roundness, and solidity). Data were evaluated using Analysis of Variance (ANOVA), genetic parameter estimation, and multivariate approaches (UPGMA, PCA, and heat map). The results indicated that there is no mandatory direct correlation between physical dimension attributes and germination physiological quality. Physical dimension descriptors, notably area, perimeter, length, and width, stood out as the most important, presenting high estimates of average heritability (h2 > 98%) and favorable variation indices (IV > 1.0), indicating strong genetic control and high potential for gains through mass selection. Multivariate clustering formed three distinct phenotypic groups, without a strictly geographic pattern, with the first two principal components explaining 77.5% of the total variation. It is concluded that classical biometrics reveals larger matrices promising for industrial use; physiological tests select genotypes with higher emergence speed indices for ecological restoration projects and seedling production; and high-performance digital morphometrics consolidates itself as an efficient tool to discriminate matrices and guide multidimensional selection. Keywords: Caatinga; genetic diversity; forest resources; seeds. Editor: Universidade Federal da Paraíba Tipo: TCC

2026-02-27T00:00:00Z Oliveira, Marcos Felipe de Sousa https://repositorio.ufpb.br/jspui/handle/123456789/39510 2026-10-08T06:11:21Z 2026-11-28T00:00:00Z

Título: Traços fenotipicos e adaptativos como critério de seleção de mudas de especies arboreas nativas para subsidiar ações de reflorestamento na caatinga Autor(es): Oliveira, Marcos Felipe de Sousa Orientador: Araujo, Helder Farias Pereira de Abstract: The selection of native forest species for the ecological restoration of degraded environments is a challenge for restoration ecology and requires technical knowledge regarding the introduction of species in the field and their management, especially in environments with high water restrictions, as is the case of the Caatinga. The Caatinga, a semi-arid region located in Northeastern Brazil, faces serious degradation problems due to deforestation and other anthropogenic actions. About 89% of the Caatinga has some level of degradation, threatening its biodiversity and ecosystem services; therefore, ecological restoration actions in this region are urgent. Given this context, the general objective of this study was to evaluate the initial development, survival, and growth of native tree species seedlings under different management conditions to support the selection of species to be used in the reforestation of the Caatinga. The present research has two distinct stages: the first stage is a greenhouse experiment and the second stage is directly in the field. The evaluation of the initial development of the seedlings in the greenhouse and the underground system of the species included two species that present underground storage structures (Astronium urundeuva M. Allemão (aroeira) and Amburana cearensis M. Allemão (cumaru)) and two that do not (Libidibia ferrea Mart. (jucá) and Tabebuia aurea S. Manso (craibeira)). The experiment on the survival and development of seedlings in the field was conducted at the São João do Cariri Experimental Station, PB, Brazil, and consisted of three treatments: irrigated short-root seedlings (RCI) and non-irrigated short-root seedlings (RCNI), planted in the rainy season, and non-irrigated long-root seedlings (RLNI), planted in the dry season. The results obtained in the greenhouse showed differences in seedling performance among species, regardless of the presence of the storage structure. The aroeira stood out positively in all analyzed variables; the craibeira had moderate growth, with a high root/shoot ratio; the cumaru had the lowest overall performance, with low biomass accumulation and slow growth; and the jucá presented, in the first three months, investment in shoot and root length growth, while in six months, it invested in the accumulation of biomass and phytomass. Regarding the field experiment, it can be highlighted that in terms of survival and development, the RCI treatment had the highest survival rate (80%) and development, followed by RLNI (60%) and RCNI (45%). Although RCI has the highest cost due to irrigation, it showed the best results. RCNI is cheaper but presents low survival, which may compromise reforestation over the years, especially if the following years are drier. RLNI, despite the high initial cost of seedling production, is a viable alternative in areas without irrigation with the potential for better results in the long term. Thus, it is concluded that the initial growth of the seedlings is determined by the intrinsic genetic potential of each species, regardless of the presence of storage structures. The choice of plant management conditions in reforestation actions should not be guided solely by the initial cost, but rather by a careful cost-benefit analysis that considers environmental conditions and the availability of financial resources. Keywords: desertification; dryland; ecosystem services; restoration; semi-arid. Editor: Universidade Federal da Paraíba Tipo: TCC

2026-11-28T00:00:00Z Silva, José Arthur Tavares da https://repositorio.ufpb.br/jspui/handle/123456789/39479 2026-10-07T06:11:40Z 2026-02-20T00:00:00Z

Título: Estabilidade de agregados do solo e carbono orgânico em sistema de integração lavoura-pecuária-floresta no agreste paraibano Autor(es): Silva, José Arthur Tavares da Orientador: Oliveira, Flávio Pereira de Abstract: In the Brazilian semi-arid region, natural limitations related to climate and soil characteristics, together with the predominant use of conventional agriculture, have intensified soil degradation processes. Given this scenario, conservationist production systems have been adopted. Thus, the objective was to evaluate soil aggregate stability and organic carbon content in an integrated agriculture-livestock-forestry system in the Agreste region of Paraíba. The experiment was conducted in the EMPAER experimental area, in the municipality of Alagoinha/PB, on a Haplic Planosol with a moderate A horizon and sandy loam texture. Four mini trenches with a maximum depth of 30 cm were opened to collect three undisturbed soil samples (0-10; 10-20; 20-30 cm), for a total of 12 samples per land use system and 60 samples in the sampled area. The experiment used a randomized block design (RBD) with five systems and four replicates (5x4). The systems used were: T1) Urochloa decumbens + Gliricidia (Gliricidia sepium); T2) Urochloa decumbens + Sabiá (Mimosa caesalpiniifolia); T3) Urochloa decumbens; T4) Degraded pasture; and T5) Native vegetation. The integration systems promote improvements in aggregate distribution, both wet and dry, with macroaggregate percentages greater than 70% at depths of 0-10, 10-20, and 20-30 cm. The Urochloa decumbens + Gliricidia (Gliricidia sepium) (GC+UD), Urochloa decumbens + Sabiá (Mimosa caesalpiniifolia) (SB+UD) and Urochloa decumbens (UD) stood out for their significant contribution of total organic carbon, maintaining values above 10 g kg−1, with average organic matter values of 63.25; 63.84 and 65.75 g kg−1, in soil profiles at depths of 0- 30 cm, respectively. The most recommended among the integrated systems would be the Sábia + Urochloa decumbens system, as it has maintained satisfactory results in physical and structural soil improvement. The area of native vegetation showed marked physical structural fragility when the soil was subjected to moistening. This structural loss is considered harmful to the soil as it can promote erosion processes. The crop-livestock-forest integration systems showed improvements in the physical structure of the soil and in the supply of organic carbon, with greater effects on the soil surface. Keywords:soil characteristics; aggregation of planosol; semi-arid. Editor: Universidade Federal da Paraíba Tipo: TCC

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