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BackgroundMany challenges are encountered in both teaching and learning veterinary obstetrics. This may be due to outdated teaching materials, as the main model of content transmission remains centred around text and images.MethodsVisualisation methods such as three-dimensional (3D) and Graphics Interchange Format (GIF) tools were applied in an attempt to improve obstetrics education outcomes in the third-year class. Traditional teaching methods were utilised in the fourth-year and fifth-year students.ResultsThese supplementary tools significantly increased the third-year students’ final examination results compared with the results of fourth-year and fifth-year students (P<0.05). These examinations were designed to evaluate comprehension of the subject matter. Self-assessment questionnaire results further indicated that 3D animation and GIF promoted learning efficiency.ConclusionIncorporation of 3D animation learning tools into the veterinary curriculum is predicted to better prepare students for the management of obstetrical cases after graduation.

Ice accumulated on conductor in transmission line can cause severe damage to the network. Various de-icing methods are introduced in details. According to the types of transmission lines, ice melting methods are classified into ac line de-icing and dc line de-icing. Different methods are described as many as possible. Then advantages and disadvantages of various de-icing methods are compared and the scope of application is presented.

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