01.1 - Graduação (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2
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Resultados da Pesquisa
Item Densitometria e volumetria tomográfica da casca de ovos de galinhas poedeiras de granjas comerciais e de galinhas free-range(2023-09-22) Lopes, Arthur Macário; Costa, Fabiano Séllos; http://lattes.cnpq.br/6876055943439186; http://lattes.cnpq.br/0178845536422489The Mandatory Supervised Internship (ESO) is the mandatory subject of the eleventh period of the Bachelor's degree in Veterinary Medicine at the Federal Rural University of Pernambuco (UFRPE). It is based on practical experience of 420 hours, in a specific sub-area of veterinary medicine, whose focus is to make the student able to perform their role, by acquiring the title of veterinary doctor. In this sense, the main objective of this report is to demonstrate the main activities carried out by student Arthur Macário Lopes, under the guidance and supervision, respectively, of professor Dr. Fabiano Séllos Costa and Veterinary Doctor Thaiza Helena Tavares Fernandes; and as a secondary objective is to present research results from the project entitled “densitometry and tomographic volumetry of eggshells from laying hens from commercial farms and free-range chickens”, which aimed to investigate the use of computed tomography as a technique for evaluating the quality and chemical composition of eggs in two breeding systems, In-cage and Cage-Free. Completing ESO was an enriching professional and personal experience. The choice of the company Focus Diagnóstico Veterinário, as the internship location, was very assertive due to the work environment, team competence, possibility of monitoring numerous exams using the most different technologies, from radiography to magnetic resonance imaging. During the internship it was possible to practice the contents discussed and shared during the UFRPE Veterinary Medicine course, and experience daily experiences in the care and respect for the animals treated, as well as their owners.Item Qualidade de ovos armazenados à temperatura ambiente de poedeiras alimentadas com dietas contendo simbiótico(2023-04-21) Siqueira, Monique Aguiar; Rabello, Carlos Bôa Viagem; http://lattes.cnpq.br/4760288746238700; http://lattes.cnpq.br/3658833045052053The study evaluated the effects of using the symbiotic in the diet of laying hens from the rearing, rearing or production phase, replacing zinc bacitracin on the quality of eggs produced in the post-peak phase stored at room temperature. 198 birds of the Dekalb White strain, aged 70 weeks, evaluated up to 90 weeks were used. For the evaluation of egg quality, the experimental design used was completely randomized in a 6 x 3 factorial scheme, with 6 experimental diets and 3 storage periods, determined at 0, 7 and 14 days, with 6 replications. The experimental diets consisted of a diet composed of corn and soybean meal without additives (RR); diet composed of corn, soybean meal and including meat and bone meal without additives (MBM); and four more rations based on the MBM diet with the addition of additives, namely, a diet with the addition of 0.05% of the Zinc Bacitracin additive from the start phase (MBM+Bac Zn); diet with the addition of 0.1% of the Symbiotic additive from the start phase (MBM+Simb-SF); diet based on MBM with the addition of 0.1% of the Symbiotic additive from the grower phase (MBM+Simb-GF), and the last diet based on MBM with the addition of 0.1% of the symbiotic additive from the production phase (MBM+Simb-PF). For the quality evaluation, 108 eggs were collected from birds at 80 weeks of age, shortly after laying. were submitted to the analysis of variance. After finding significance, the data were submitted to the Tukey test (p<0.05) and analyzed using the mixed model, using the SAS statistical package. The diets significantly influenced the variable yolk color, where the treatment with zinc bacitracin obtained the highest value, and albumen pH, influenced by the addition of MBM. On the other hand, all variables were influenced by storage time, indicating that prolonged storage periods contribute to a decrease in egg quality, regardless of the type of additive or the period of use. Thus, the symbiotic additive can be used as an alternative to zinc bacitracin because it presents results, about egg quality, similar to those where the antibiotic additive is used, except for the color intensity of the yolk. Also, the additives used, regardless of the inclusion phase, were not able to reduce the effects of storage time on egg quality.Item Qualidade de ovos de galinhas poedeiras alimentadas com dietas contendo minerais complexados a aminoácidos(2018-08-24) Silva, Paulo Sérgio da; Rabello, Carlos Bôa Viagem; Silva Júnior, Rogério Ventura da; http://lattes.cnpq.br/9086218474929748; http://lattes.cnpq.br/4760288746238700; http://lattes.cnpq.br/5300952184603589The objective of this study was to evaluate the effects of micronutrients (Zn), Manganese (Mn), Copper (Cu) and Iron (Fe) in the form of minerals complexed to amino acids (MCAA) associated with inorganic sources of feed for laying hens. The research was developed in the Ovo Novo farm, Caruaru, Pernambuco, and the laboratory analysis carried out in the Animal Science Department of the Federal Rural University of Pernambuco. A total of six hundred and forty Lohmann Brown-Lite llaying hens from 50 to 70 weeks of age were used, of which three hundred and twenty were fed MCAA from the breeding and rearing phase, and three hundred and twenty were not fed diets containing MCAA. The birds were housed in cages and distributed according to a completely randomized design in a 2 x 4 factorial scheme, consisting of 8 treatments with 8 replicates of 10 birds per experimental unit. The treatments consisted of 70, 70 and 8 mg / kg Zn, Mn and inorganic Cu (control) and 40, 40 and 2.75 mg / kg supplements associated with 30, 30 and 5.25 mg / kg Zn, inorganic and organic Mn, respectively (test), delivered from birth up to 30 weeks of age. They had been evaluated: weight of the egg (g), color of the egg yolk, height of albúmen (mm), weight of the eggshell (g), thickness of the eggshell (mm) and Haugh Unit. The data had been submitted to the analysis of variance by means of computational program R Studio® and the means subbmetted tukey test (P<0.05). But the thickness of eggshell was influenced by the treatments. It did not have interaction between the diet growth and the diet production, in this manner, the suplementation during the growing phases had not influenced to the parameters of internal quality of eggs in the production phase. However, it can be verified that the birds supplemented with sources MCAA had presented thickness of eggshell best. The partial substitution of the Zn, inorgânicos Mn, Cu and Fe for MCAA improves the thickness of the eggshell of eggs of the birds.