01.1 - Graduação (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2
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Resultados da Pesquisa
Item Características ósseas para estimar a ingestão de manganês complexado a aminoácidos para aves de postura fase de cria(2024-02-28) Lima, Stephany Debora Vila Bela de; Souza, Lilian Francisco Arantes de; Wanderley, Jamille Sheila da Silva; http://lattes.cnpq.br/4706720624276029; http://lattes.cnpq.br/6015344715032401; http://lattes.cnpq.br/8296739801125452Inorganic mineral sources have lower bioavailability and are commonly supplemented in excess in bird feed to meet requirements, while organic sources are more bioavailable and are included in smaller quantities in the diet. The present study aimed to estimate the ideal intake of manganese complexed with amino acids in the diet of laying hens during the rearing phase using bone variables. 720 Dekalb White chicks aged 1 to 6 weeks were used and distributed in a completely randomized design (DIC) in 6 treatments with 6 replications of 20 birds each. The treatments consisted of isonutritive and isoenergetic diets with levels of complexed manganese inclusion at 25, 37, 49, 61, 73 and 85 mg/kg. At the end of the experimental period, both tibias were collected from 1 bird per experimental plot. To evaluate bone variables, the following were measured and used: bone strength, densitometry (proximal, medial and distal), mineral matter and Seedor index of the tibias. The bone variables obtained were subjected to multivariate data analysis, with multivariate analysis of variance being performed, then the data were subjected to principal component analysis (PCA) and correlation matrix, and based on the results, the variables were subjected to linear and non-linear regression models to estimate the ideal intake of manganese complexed with amino acids for the breeding phase. According to the results of ANOVA and MANOVA and according to PCA, distal densitometry is the most relevant bone variable to make the estimate. The ideal intake of manganese complexed with amino acids was calculated using the models: MnCAA = Rmax.x/(km+x) and MnCAA = - r+ln((-y-Rmin-amp/y-Rmin)/s), and From the inversion of the models, an estimated consumption of 1,767 mg/bird/day of MnCAA was generated for the maximum response of medial tibial densitometry.Item Distúrbios locomotores associados a desordens nutricionais em galinhas de fundo de quintal - Relato de caso(2023-09-04) Silva, João Paulo Gomes da; Mendonça, Fábio de Souza; http://lattes.cnpq.br/1976344298387988; http://lattes.cnpq.br/2210109777543280The Mandatory Supervised Internship was carried out in two different locations, with the first part performed during the period from June 1st to 30th (2023), at the Animal Diagnostic Laboratory (LDA-UFRPE), totaling 176 hours. The second part, held between July 3rd and August 14th (2023), took place at the Veterinary Pathology Laboratory (LPV) and the Conservation Medicine Laboratory (LAMCON), both at the Federal University of Paraíba (UFPB), Campus II, totaling 248 hours. The internships were based on diagnosing diseases in domestic, wild, and exotic animals, emphasizing the pathology of birds and wild animals. During this period, necropsies, cytology, and biopsies were carried out, with important necropsies of wild animals at risk of extinction or domestic animals with zoonotic diseases being carried out, and highlights the relevance of the role of pathology in the conservation of species and its value in public health. Metabolic and nutritional diseases represent an important portion of illnesses in poultry, constituting a considerable cause of early slaughter in commercial farms. Vitamin and mineral deficiencies are associated with locomotor disorders in poultry, which can cause syndromes that impact the mobility of these animals. Chickens without adequate nutrition often manifest syndromes known as “leg weakness” and “twisted leg” syndrome, characteristic of deficiencies in Niacin (B3), Choline (B8), Manganese, Calcium or Zinc, mainly. This study aimed to describe the clinical and anatomopathological findings of these two conditions in backyard poultry. Six chickens, of different ages and from the Agreste region of Pernambuco, were clinically examined due to the manifestation of progressive locomotor problems. One bird was sent for necropsy, the organs were fixed in 10% buffered formalin and routinely processed for histopathology. Clinically, the animals exhibited imbalance, difficulty standing, falls, and difficulty getting up. One of the birds presented a slight deviation of one of the legs, with slightly thickened hocks bilaterally and unilateral subluxation of the gastrocnemius tendon on the affected leg. The bones offered no resistance to cutting. Diseases of the locomotor system have different etiological agents, and it is necessary to analyze the macroscopic and microscopic aspects and the animal history to make a diagnosis. The occurrence of outbreaks on the property and the lesions found reflect a possible deficiency, unique or synergistic, of essential dietary components such as B vitamins, Calcium, Zinc, or Manganese, which are responsible for the integrity of connective and bone tissues, and whose lack promotes the emergence of chondrodystrophic lesions.Item Níveis de manganês complexado a aminoácidos na dieta de poedeiras comerciais em fase de cria: indicadores de bem-estar animal(2022-10-07) Macedo, Juliana Belens de; Souza, Lilian Francisco Arantes de; Rabello, Carlos Bôa Viagem; http://lattes.cnpq.br/4760288746238700; http://lattes.cnpq.br/6015344715032401; http://lattes.cnpq.br/1613661031404158The objective was to evaluate the effects of manganese inclusion levels complexed with amino acids in the diet of commercial laying hens during the brooding phase on indicators of animal welfare. The research was developed at the Departamento de Zootecnia of the Universidade Federal Rural de Pernambuco. The experiment had 648 Dekalb White chicks distributed in a completely randomized design in six treatments, with six replications of 18 hens each. The provided diets had different levels of inclusion of manganese mineral complexes to amino acids of 25, 37, 49, 61, 73 and 85 mg/kg. Welfare indicators were evaluated at 35 days in 18 hens per replicate. The lesions on the keel, skin and comb, footpad and plumage condition were evaluated. The data obtained were submitted to the chi-square test or G test in the BioEstat 5.3 software, using a significance level of 5% (p < 0.05), and presented in the results in percentage frequency (%). It was found that there was no effect of the levels of inclusion of manganese complexes to amino acids on some indicators, such as keel injuries, crest and footpad injuries and condition and damage to the plumage, which indicated that the supplementation level of 25 mg/ kg can be applied to diets with phytase inclusion, without harming the welfare of laying hens in the brood phase. However, it was found that for better skin integrity, the inclusion of the 85 mg/kg level of manganese complexed to amino acids is recommended.Item Níveis de zinco complexado a aminoácidos na dieta de poedeiras comerciais em fase de cria: indicadores de bem-estar animal(2022-10-07) Barros, Tatiane Amaral de; Souza, Lilian Francisco Arantes de; Rabello, Carlos Bôa Viagem; http://lattes.cnpq.br/4760288746238700; http://lattes.cnpq.br/6015344715032401; http://lattes.cnpq.br/6999911364398368The present study aimed to evaluate the effects of inclusion levels of zinc complexed to amino acids in the diet of commercial laying hens in the brooding phase, on welfare indicators related to bone development, feathering and tegument. A total of 648 Dekalb White chicks were used, from 1 to 35 days of age. The birds were housed in cages with the density recommended by the manual and distributed in a completely randomized design, consisting of 6 treatments, of 6 replicates and 18 birds per experimental unit, totaling 36 experimental units. The treatments consisted of a diet formulated with corn and soybean supplemented with 18, 30, 42, 54, 66 and 78 mg/kg of amino acid-complexed zinc, respectively. Water was provided ad libitum and the ration adjusted weekly according to the needs of the birds and the lineage manual. Welfare indicators were adapted and evaluated based on the Welfare Quality protocol for laying hens during the first 6 weeks of life. Amino acid-complexed zinc supplementation did not influence welfare indicators when aspects such as injury to the keel, skin, crest and foot pad, as well as plumage cover, deficiency and damage to the plumage in the brooding phase were observed.Item Concentração de minerais na palma forrageira e suas implicações no metabolismo de ruminantes: revisão de literatura(2018-08-22) Silva, Marisol Ramos da; Guim, Adriana; Silva, Tomás Guilherme Pereira da; http://lattes.cnpq.br/3632014794052859; http://lattes.cnpq.br/5179137865818915; http://lattes.cnpq.br/1463080663779484The forage palm is used in the feeding of ruminant animals, mainly in the regions that have low rainfall indexes, because it presents great adaptability to more arid climates and presents great amount of water in its composition, contributing significantly to the watering of the animals. However, this forage has other characteristics such as imbalance of minerals (Ca: P, for example), high concentrations of calcium (Ca), potassium (K) and magnesium (Mg) and low concentrations of phosphorus (P) and sodium (Na) that signal the need for care in the mineralization of the herd. These imbalances can lead to problems in productive performance, reproductive health and health of ruminant animals that consume this fodder resource. Given the importance of knowledge of the mineral composition of foods to formulate suitable diets for ruminant animals the objective was to carry out a bibliographical survey on the role of minerals in ruminant feeding and the concentration of these in the forage palm.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.