Your probe choice depends on the size of animal you are scanning, and also your past experience.
Convex Probes
Convex probes are low frequency, with a larger imaging area. This means that they have excellent penetration – but at the expense of image quality.
If you are scanning large animals, you will want to choose a convex probe. Many goat breeders, for example, will pick this probe. Equally, if you have only ever used a convex probe in the past, you may favor what you are already used to.
Microconvex Probes
Microconvex probes are high frequency. This means that they cannot penetrate as far into the animal, but the images you can generate with them are very high resolution.
If you are scanning dogs, you will almost always want to choose a microconvex probe. You may also choose a microconvex probe if you are scanning small breeds of goat, such as Pygmy Goats or Nigerian Dwarfs.
Microconvex Probes
Microconvex probes are high frequency. This means that they cannot penetrate as far into the animal, but the images you can generate with them are very high resolution.
If you are scanning dogs, you will almost always want to choose a microconvex probe. You may also choose a microconvex probe if you are scanning small breeds of goat, such as Pygmy Goats or Nigerian Dwarfs.