@Acrivec wiem do czego nawiązujesz, ale one są na to zbyt duże. Z tego co pamiętam owce kastrowane są zaraz po urodzeniu, przez opaskę uciskową.
Tu masz opis, który był pod filmikiem.
The roller device used to vaccinate lambs is typically referred to as an automatic vaccinator. This device is recommended for use because it allows for efficient and consistent vaccine delivery. Since the vaccine bottles are non-collapsible, an automatic vaccinator with a vented draw-off spike or similar device is necessary to ensure proper administration of the vaccine.
For example, when vaccinating against diseases like enterotoxemia caused by Clostridium perfringens, which can be a serious threat to lambs from birth through post-weaning, an automatic vaccinator can help streamline the vaccination process and ensure that each lamb receives the correct dosage¹.
It's important to note that while the term "roller" is used, it does not necessarily imply that the device rolls over the animal's skin. Instead, the term may refer to the rolling action within the device that helps draw up and administer the vaccine.
