Manejo reprodutivo em bovinos de leite.

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Changes in the midpalatal and pterygopalatine sutures induced by micro-implant-supported skeletal expander, analyzed with a novel 3D method based on CBCT imaging

Abstract Background Mini-implant-assisted rapid palatal expansion (MARPE) appliances have been developed with the aim to enhance the orthopedic effect induced by rapid maxillary expansion (RME). Maxillary Skeletal Expander (MSE) is a particular type of MARPE appliance characterized by the presence of four mini-implants positioned in the posterior part of the palate with bi-cortical engagement. The aim of the present study is to evaluate the MSE effects on the midpalatal and pterygopalatine sutures in late adolescents, using high-resolution CBCT. Specific aims are to define the magnitude and sagittal parallelism of midpalatal suture opening, to measure the extent of transverse asymmetry of split, and to illustrate the possibility of splitting the pterygopalatine suture. Methods Fifteen subjects (mean age of 17.2 years; range, 13.9–26.2 years) were treated with MSE. Pre- and post-treatment CBCT exams were taken and superimposed. A novel methodology based on three new reference planes was utilized to analyze the sutural changes. Parameters were compared from pre- to post-treatment and between genders non-parametrically using the Wilcoxon sign rank test. For the frequency of openings in the lower part of the pterygopalatine suture, the Fisher’s exact test was used. Results Regarding the magnitude of midpalatal suture opening, the split at anterior nasal spine (ANS) and at posterior nasal spine (PNS) was 4.8 and 4.3 mm, respectively. The amount of split at PNS was 90% of that at ANS, showing that the opening of the midpalatal suture was almost perfectly parallel antero-posteriorly. On average, one half of the anterior nasal spine (ANS) moved more than the contralateral one by 1.1 mm. Openings between the lateral and medial plates of the pterygoid process were detectable in 53% of the sutures (P < 0.05). No significant differences were found in the magnitude and frequency of suture opening between males and females. Correlation between age and suture opening was negligible (R 2 range, 0.3–4.2%). Conclusions Midpalatal suture was successfully split by MSE in late adolescents, and the opening was almost perfectly parallel in a sagittal direction. Regarding the extent of transverse asymmetry of the split, on average one half of ANS moved more than the contralateral one by 1.1 mm. Pterygopalatine suture was split in its lower region by MSE, as the pyramidal process was pulled out from the pterygoid process. Patient gender and age had a negligible influence on suture opening for the age group considered in the study

Recomendações Técnicas para Diagnóstico, Identificação de Agentes e Controle da Mastite.

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Medidas de biosseguridade no uso da inseminação artificial em bovinos.

O que são medidas de biosseguridade? Quais são os pontos críticos no uso da IA? Como a IA pode contribuir para disseminação de patógenos?bitstream/item/223082/1/COMUNICADO-TECNICO-382.pd

Qualidade Composicional do Leite de um rebanho Jersey no Sul do Rio Grande do Sul

A qualidade do leite apresenta cada vez mais importância para o setor lácteo nacional, visando o mercado consumidor interno e externo. Conhecer a qualidade composicional do leite produzido pelo rebanho e os fatores que o influenciam pode auxiliar o produtor a obter maior remuneração pela matéria prima. O objetivo deste trabalho é avaliar a qualidade composicional e a sazonalidade do leite de um rebanho Jersey da Região Sul do Rio Grande do Sul. O estudo foi realizado no período de Janeiro a Dezembro de 2014, em um rebanho da Embrapa Clima Temperado da Estação Experimental Terras Baixas do Capão do Leão - RS. Foram utilizados os dados do controle leiteiro mensal do rebanho. Os teores médios dos componentes foram: Gordura 4,58%, Proteína Bruta 3,29%, Lactose 4,47%, Sólidos Totais 13,31% e sólidos desengordurados 8,73%. A qualidade do leite do rebanho avaliado apresentou médias adequadas aos padrões estabelecidos pela Instrução Normativa 62. As maiores variações ocorreram nos teores de gordura possivelmente devido ao estágio de lactação do rebanho