Kids ask, taz says, "Are cow horns hollow on the inside?"

A five-year-old boy named Josha asked whether cow horns are hollow inside, prompting die taz to investigate and provide an answer. The question arose during a feature in which children's queries are addressed weekly. According to Olaf Bellmann, a veterinarian at the Research Centre for Animal Production Biology, cow horns are indeed hollow. This structural characteristic is essential because otherwise, they would be too heavy for the animals to carry. Bellmann explained that while European cattle breeds typically have shorter horns, some species such as the Hungarian Steppe cattle can grow horns up to one meter long. In East Africa, the Watussi breed has horns that reach lengths of up to 1.5 meters. The structure of cow horns is similar to human fingernails and toenails, made of keratin. These horns are connected to the skull through a horn core composed of blood vessels and bone tissue, which is supplied with nerves. It is at these points that cows can feel pain. Removing cow horns requires specialized tools such as saws or hot knives. Historical evidence suggests that Vikings used similar methods when removing horns. The outer layer of a cow horn can be up to two centimeters thick, making it much more robust than human nails. According to Bellmann, many cows raised in confined spaces have their horns removed early in life. This procedure is performed before the horns have fully developed, and the area is numbed to prevent the calves from feeling pain. Some cattle breeds have been selectively bred to be born without horns, such as the Angus breed. Bellmann noted that while horns primarily serve defensive purposes, they also help cows scratch themselves and assist in foraging by loosening the ground to find grass. For bulls, horns also contribute to their imposing appearance, adding a touch of showmanship to their presence. The practice of dehorning cattle is common in modern farming, aimed at preventing injuries to both animals and humans. However, this process raises ethical concerns regarding animal welfare. While the removal is done under anesthesia, the long-term effects on the animals' behavior and health remain subjects of debate among veterinarians and animal rights advocates. Some argue that alternative management practices could reduce the need for dehorning, such as providing adequate space and using protective barriers. The discussion around cow horns highlights broader issues related to livestock management and animal welfare. As agricultural practices evolve, there is increasing pressure on farmers to adopt humane treatment methods that balance productivity with ethical considerations. Researchers continue to study the impact of dehorning on cattle behavior and stress levels, seeking ways to improve animal well-being without compromising farm safety. Efforts to raise awareness about these issues are ongoing, with organizations advocating for better regulations and standards in animal husbandry. Public interest in how food is produced continues to grow, influencing consumer choices and pushing for greater transparency in farming practices. As research progresses, new insights into the biology and behavior of cattle may lead to innovative solutions that benefit both animals and producers.