Relatório de Estágio Supervisionado Obrigatório

Orientador : José Antônio de FreitasMonografia (graduação) - Universidade Federal do Paraná, Setor de Palotina, Curso de Graduação em Medicina veterináriaInclui referênciasResumo : O presente trabalho de conclusão de curso apresenta as atividades realizadas na disciplina de Estágio Curricular Obrigatório realizado na área de reprodução animal sob orientação do professor Dr. José Antônio de Freitas da Universidade Federal do Paraná – UFPR, Setor Palotina. O estágio foi realizado na instituição de pesquisa Empresa Brasileira de Pesquisa Agropecuária – Gado de Leite, em Coronel Pacheco – Minas Gerais, no Setor de Ovinos e Caprinos, da Embrapa Caprinos e Ovinos – Núcleo Regional Sudeste. No período de 31 de julho a 17 de novembro de 2017, sob supervisão do pesquisador Dr. Jeferson Ferreira da Fonseca. Serão descritas neste trabalho as atividades e procedimentos acompanhados na área de Reprodução Animal durante o período do estágio, contemplando as atividades propostas no plano de atividades do estágio, assim como a descrição da estrutura e funcionamento do Setor de Ovinos e Caprinos. Será também apresentada uma revisão bibliográfica sobre tema de maior interess

The bimodality of the 10k zCOSMOS-bright galaxies up to z ~ 1: a new statistical and portable classification based on the optical galaxy properties

Our goal is to develop a new and reliable statistical method to classify galaxies from large surveys. We probe the reliability of the method by comparing it with a three-dimensional classification cube, using the same set of spectral, photometric and morphological parameters.We applied two different methods of classification to a sample of galaxies extracted from the zCOSMOS redshift survey, in the redshift range 0.5 < z < 1.3. The first method is the combination of three independent classification schemes, while the second method exploits an entirely new approach based on statistical analyses like Principal Component Analysis (PCA) and Unsupervised Fuzzy Partition (UFP) clustering method. The PCA+UFP method has been applied also to a lower redshift sample (z < 0.5), exploiting the same set of data but the spectral ones, replaced by the equivalent width of H$\alpha$. The comparison between the two methods shows fairly good agreement on the definition on the two main clusters, the early-type and the late-type galaxies ones. Our PCA-UFP method of classification is robust, flexible and capable of identifying the two main populations of galaxies as well as the intermediate population. The intermediate galaxy population shows many of the properties of the green valley galaxies, and constitutes a more coherent and homogeneous population. The fairly large redshift range of the studied sample allows us to behold the downsizing effect: galaxies with masses of the order of $3\cdot 10^{10}$ Msun mainly are found in transition from the late type to the early type group at $z>0.5$, while galaxies with lower masses - of the order of $10^{10}$ Msun - are in transition at later epochs; galaxies with $M <10^{10}$ Msun did not begin their transition yet, while galaxies with very large masses ($M > 5\cdot 10^{10}$ Msun) mostly completed their transition before $z\sim 1$.Comment: 16 pages, 14 figures, accepted for publication in A&

Relatório de Estágio Supervisionado Obrigatório

Orientador : José Antônio de FreitasMonografia (graduação) - Universidade Federal do Paraná, Setor de Palotina, Curso de Graduação em Medicina veterináriaInclui referênciasResumo : O presente trabalho de conclusão de curso apresenta as atividades realizadas na disciplina de Estágio Curricular Obrigatório realizado na área de reprodução animal sob orientação do professor Dr. José Antônio de Freitas da Universidade Federal do Paraná – UFPR, Setor Palotina. O estágio foi realizado na instituição de pesquisa Empresa Brasileira de Pesquisa Agropecuária – Gado de Leite, em Coronel Pacheco – Minas Gerais, no Setor de Ovinos e Caprinos, da Embrapa Caprinos e Ovinos – Núcleo Regional Sudeste. No período de 31 de julho a 17 de novembro de 2017, sob supervisão do pesquisador Dr. Jeferson Ferreira da Fonseca. Serão descritas neste trabalho as atividades e procedimentos acompanhados na área de Reprodução Animal durante o período do estágio, contemplando as atividades propostas no plano de atividades do estágio, assim como a descrição da estrutura e funcionamento do Setor de Ovinos e Caprinos. Será também apresentada uma revisão bibliográfica sobre tema de maior interess

Use of hCG on the induction of accessory corpora lutea in Morada Nova ewes.

The objective of this study was to evaluate if the use of hCG seven days after the synchronized estrus will induce the formation of accessory corpora lutea in Morada Nova ewes

Overnutrition of Ewe in Late Gestation and the Impact on Placental Efficiency and Lamb’s Performance

The objective of the study was to evaluate energy or energy/protein supplementation in the ewe diet, in the last third of gestation, on maternal placental and endocrine characteristics, as well as its effects on the behavior of neonatal lambs and productive performance until weaning. A total of 128 ewes were used, and the experimental diet was fed from 100 days gestation until lambing, with the birth of 172 lambs. The ewes were distributed into three treatments: CTL (control, n = 43) with metabolizable energy (ME) and crude protein (CP) intake according to NRC (1985); ME (energy supplementation, n = 44) plus 21% ME; and MECP (energy/protein supplementation, n = 41) plus 26% ME and CP. Body weight, body condition score, serum hormone concentrations, placental characteristics, lamb performance and behavior, and production efficiency of the ewe from lambing to weaning were measured. ME and MECP ewes were heavier before (p = 0.006) and just after lambing (p = 0.002) and had higher serum triiodothyronine (p = 0.001) and cortisol (p = 0.004) concentrations on the day of lambing. ME ewes had higher placental efficiency (p = 0.036) and lower total cotyledon weight (p = 0.011). ME and MECP diets increased both lamb birth weight (p = 0.015) and weaning weight (p = 0.009). Production efficiency at birth and at weaning was not influenced (p > 0.05) by treatments. Lamb behavior was influenced by the ME and MECP diets, reducing the time to kneel (p ≤ 0.05), to try to stand (p ≤ 0.05), and the latency to stand (p ≤ 0.005). It is concluded that overnutrition in the last third of gestation was positive for the ovine production system, with improved production rates, hormonal profile, placental characteristics, and neonatal behavior