RESUMO
OBJECTIVE: The aim of this research is to investigate the relationship level of oxytocin released and the tactile stimulation of the cervix in Holstein cattle from the northwestern arid regions in México. MATERIALS AND METHODS: The cervixes of 10 Holstein Friesian dairy cows in mid-lactation were manually stimulated for 60 sec. Oxytocin released in the blood was analyzed before and after stimulation. The enzyme-linked immunosorbent assay was used in the analysis to make oxytocin detectable by spectrometry techniques and by converting the luminescence absorbance of each sample into pg per mol. RESULTS: The study revealed that tactile stimulation of the cervix increased oxytocin levels. The highest increase in oxytocin level was 10,940.8222 pg/mol, while the lowest increase in oxytocin level was 1,830.94254 pg/mol. Besides, the milk production by tactile stimulation of the cervix had a higher milk yield and a p-value of 9.4 × 10-4 (p < 0.05) in comparison to the monthly average without tactile stimulation. CONCLUSION: Tactile stimulation of the cervix activates the Ferguson reflex and increases the oxytocin released in the blood and increases the milk released from the alveolar glands.
RESUMO
El objetivo del estudio fue analizar la autoeficacia para el aprendizaje de la investigación que tienen los estudiantes universitarios y de qué manera estas ideas interactúan con sus concepciones respecto a la investigación. La muestra la constituyen 1.304 estudiantes de la Universidad Técnica de Machala, Ecuador, a los cuales se les aplicó un inventario de autoeficacia para el aprendizaje de la investigación. Los resultados indican que las ideas de autoeficacia están en proceso de formación. El estudiante ve la investigación como requisito para continuar su progresión profesional, de allí que se concibe más como producto que como proceso. Hay un relativo interés y autoconfianza para investigar. Se determinó que las ideas de eficacia de modo lineal no cambian las nociones de investigación que tienen los estudiantes y que los imaginarios de la universidad condicionan la fuerza y dirección de las creencias personales en la capacidad de aprender a investigar
The aim of this study was to analyze the university students' self-efficacy for learning how to conduct research and how these ideas interact with their conceptions about research. The sample was made up of 1,304 students from Universidad Técnica de Machala, Ecuador. A questionnaire about self-efficacy for learning how to conduct research was applied to these students. The results of this study show that the ideas of self-efficacy are being formed. Students see research as a requirement for continuing their professional career; therefore, it is from that idea that research is conceived more as product than as a process. There exists a relative interest and confidence in conducting research. As a result, it has been determined that ideas of efficacy in the linear model do not change the research notions that university students have. It was also found that university social representations determine the strength and direction of personal beliefs in the ability to learn how to conduct research
