My suspicion is raised by pausing at :28 and noticing the apparent size of the subjected cow relative to others. The cows in the foreground are larger than those mid distant which in turn are larger than those in the far background, as you'd expect, except for the subjected cow which is decidedly smaller than those behind it. Now I don't know the true size of the cows, nor the true distance from the camera; it could be that the background has very large cows, but that would be quite the coincidence as our cow of interest is the only anomaly of apparent size via distance. It looks in that frame to be a size of a cafe compared to the cows behind, but the zoom in done while shown to be in the air shows the shape of an adult, a cafe having a total different anatomy to my admittedly low knowledge of farm animals.
Moreover, the mechanism of the 'tractor beam' seems absurd. If it works like gravity then it should pull on the top lifting the cows head and upper back pulling it up by an upper force on its neck and upper skeleton. No way could it then move its head downwards while being sucked up as it does in the film. If it works by some convective force pushing up on its bottom, then it's legs should be folded and its belly concaved in on itself none of which is seen. So if the film is real, the beam works in a way that escapes even our imagination. Instead we see a cow in the midst of being pulled up acting like a cow does in the field, which is consistent with a film of a cow superimposed on the tape in places where it was actually not, a situation we can imagine with ease. That in itself would have me thinking hoax.
