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Boas práticas de ordenha em propriedades rurais no município de Jucás, CE: qualidade físico-química e contagem de células somáticas do leite de cabra cru

2026-04-09T23:04:18Z

Título: Boas práticas de ordenha em propriedades rurais no município de Jucás, CE: qualidade físico-química e contagem de células somáticas do leite de cabra cru Autor(es): Bastos, Cláudia Gabriela Andrade Abstract: The aim of this study was to evaluate the physical-chemical quality and somatic cellcount of raw goat milk produced in the municipality of Jucas, Ceará, before and aftertraining dairy goat farmers in good hygiene practices during milking and the adoptionof the continuous use of the Embrapa Manual Milking kit® for Dairy Goats. Raw milksamples were collected from eight family farms, using manual (n=5) and mechanical(n=3) milking methods. In the first moment, raw goat milk was collected directly fromthe farms to characterize the quality of the milk produced. In a second moment, trainingwas offered to producers on good hygiene practices in milking, accompanied by thedelivery of the Embrapa Manual Milking kit® for Dairy Goats. In the third moment, aftercontinuous use of the kit and adoption of the techniques previously recommended bythe producers, the final collection of goat milk was conducted. The samples were sentto the Milk Clinic – ESALQ (Piracicaba/SP) for analysis of the variables fat, protein,lactose, total solids, defatted dry extract, somatic cell count, and urea nitrogen. Thedata were submitted to the Kolmogorov-Smirnov normality test, and to ascertain theeffect of training, Student's t-test for paired samples was applied, considering asignificance level of 5%. Statistical analyses were conducted using RStudio software.The results indicated that there was no statistical difference (p>0.5) in milk componentsfor the averages obtained before and after training, except for lactose (p<0.05).Training in good milking hygiene practices, associated with the use of the EmbrapaManual Milking kit®, although not increasing the quality of goat milk produced in theregion, contributed to maintaining it, indicating that the adoption of hygienic milkingtechniques and the provision of training can assist in the search for standardizationand consistency of goat milk quality indicators Tipo: TCC

Características morfofisiológicas e químico-bromatológicas do capim-aruana adubado com farelo de mamona

2026-04-09T20:27:48Z

Título: Características morfofisiológicas e químico-bromatológicas do capim-aruana adubado com farelo de mamona Autor(es): Silva, Amanda Monteiro da Abstract: Brazil has a high livestock production potential based on pastures, whose productivity depends on proper management, mainly fertilization. In this context, castor bean by-products stand out as a sustainable alternative, although they are still little studied as organic fertilizers in tropical pastures. This study aimed to evaluate the use of castor bean meal as an organic fertilizer on Aruana grass (Megathyrsus maximus cv. Aruana), focusing on its morphophysiological and chemical-bromatological characteristics. A completely randomized design was adopted, with different doses of castor bean meal (0, 25, 50, 75, and 100 g per pot) and five replications (10 dm³ pots). Two 30-day production cycles were evaluated. Data were subjected to normality (Shapiro–Wilk) and homoscedasticity (Levene) tests to verify the basic assumptions for analysis of variance. Subsequently, the results were analysed using analysis of variance and regression analysis. In the regression analysis, model selection was based on the significance of linear and quadratic coefficients using Student’s t test (P < 0.05), with the SAS software as a statistical analysis tool (SAS Institute, 2015). In the first cycle, a positive linear response was observed for leaf elongation rate (LER), total leaf senescence rate (TLSR), canopy height, number of new leaves (NNL), total harvestable forage biomass (THFB), harvestable green leaf biomass (HGLB), harvestable green stem biomass (HGSB), harvestable dead forage biomass (HDFB), and crude protein (CP) as castor bean meal doses increased. Tiller population density (TPD) and relative chlorophyll index (RCI) showed quadratic responses, reaching maximum values of 46.34 tillers and 38.18 SPAD units at doses of 71.58 g and 83.31 g, respectively. Mineral matter (MM) content also showed a quadratic response, but negative, with a minimum value of 8.65% at the dose of 59.75 g. Reductions were observed in neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents. In the second cycle, changes in plant response were observed: although total forage biomass, green leaf biomass, green stem biomass, dead forage biomass, and canopy height maintained a positive linear increase, the leaf-to-stem ratio (L/S) and mineral matter content showed a negative linear effect. Dry matter (DM) and crude protein (CP) exhibited positive and negative quadratic effects, with maximum and minimum values of 25.58% at 51.71 g and 5.98% at 36.75 g, respectively. Acid detergent fiber (ADF) and stem elongation rate (SER) showed positive linear behavior. It is concluded that castor bean meal is an efficient organic fertilizer, and a dose of 11.587,10 kg ha⁻¹ is recommended, determined from the average of the maximum values observed for TPD, and RCI, which showed positive quadratic responses. This dose optimizes productive characteristics; however, appropriate management regarding application frequency is essential to maintain production stability and pasture quality over time. Tipo: TCC

Comparação entre o peso corporal estimado por equações de regressão e o peso corporal obtido por fita comercial para pesar equinos da raça “Brasileiro de Hipismo”

2026-04-08T22:23:04Z

Título: Comparação entre o peso corporal estimado por equações de regressão e o peso corporal obtido por fita comercial para pesar equinos da raça “Brasileiro de Hipismo” Autor(es): Oliveira, Vivian Victtoria Borges de Abstract: Knowledge of live body weight in horses is essential from birth (monitoring of weight development), throughout their athletic career (competition weight), and during their reproductive life (body weight at the onset of the breeding season). In addition, accurate body weight determination is necessary to establish nutrient requirements for maintenance, to calculate appropriate dosages of anthelmintics and medications (antibiotics), and to determine the optimal timing for the initiation of training. The use of a scale is the most accurate method for obtaining animal body weight (kg); however, in the absence of a scale or when scales are not properly calibrated, as reported by Wood, Reyher, and Barret (2015), body weight can be estimated using regression equations based on morphometric measurements. In this study, several equine body weight prediction equations available in the literature, as well as those developed by Martins et al. (in press), were reviewed with the objective of comparing body weight obtained using a commercial equine weigh tape (model “Iaber Inovation”) with body weight estimated from thoracic girth (PT), cannon bone circumference (PC), and withers height (AC) measurements in horses of the Brazilian Sport Horse breed from the JLP Equestrian Center, located in the Castelão district, Fortaleza, Ceará, Brazil. Body weight was expressed in kilograms and measurements in centimeters. The results showed that the regression equations evaluated generally exhibited strong correlations with body weight measured using the commercial weigh tape, for both mares and stallions of the Brazilian Sport Horse breed at the JLP Equestrian Center. Among the equations analyzed, the one corresponding to variable Weight16 stood out for presenting the smallest mean differences in comparison with the weight measured by the tape, with values of 9.66 kg for mares and −5.11 kg for stallions, in addition to high correlation coefficients. Conversely, the equation corresponding to Weight11 showed larger mean differences, suggesting a tendency to overestimate body weight, despite its high correlation. These findings indicate that the selection of the most appropriate equation for estimating live body weight should consider not only statistical correlation but also the magnitude of differences relative to the reference method, highlighting the Weight16 equation as the most suitable for practical application. Tipo: TCC

Desenvolvimento de uma ferramenta digital para estimativa da biomassa de forragem em propriedades rurais do Ceará

2025-10-31T22:45:15Z

Título: Desenvolvimento de uma ferramenta digital para estimativa da biomassa de forragem em propriedades rurais do Ceará Autor(es): Alves, Sávio Levy Sousa Abstract: Livestock plays an essential role in the socioeconomic development of the Brazilian Semi-Arid region, where the raising of cattle, sheep, and goats is widely practiced. However, the activity faces challenges such as the seasonality of forage production, edaphoclimatic limitations, and the scarcity of technologies applied to herd feeding planning. In this context, the use of tools that help producers balance the demand and supply of feed on the property becomes essential. The objective of the present study was to develop an interactive dashboard in Microsoft Excel to carry out tactical feeding planning (medium-term forage budgeting) on rural properties, based on data from dairy hubs in the state of Ceará. The dashboard was built from a database containing biomass information of strategic forage resources for the eight dairy hubs of Ceará, such as buffel grass, forage cactus, and native pasture, in addition to data on herd feed consumption, considering species, category, body weight, and number of animals. The tool allows the user to input the area size (ha) for each type of forage resource and herd characteristics, and as a result, the tool generates an estimate of the total forage biomass, the annual dry matter intake, and the carrying capacity of the property. The results are presented in an intuitive and visual way, making interpretation easier for users. The system validation demonstrated its practical usefulness, allowing the identification of scenarios in which the property’s carrying capacity is below, adequate, or above the recommended level. It is concluded that the dashboard is a promising and accessible tool for forage management, contributing to the rational use of resources, the improvement of the herds’ zootechnical performance, and the sustainability of production systems. Tipo: TCC