Dehorning is the process of removing the horns of livestock. Cattle, sheep, and goats are sometimes dehorned [1] [2] for economic and safety reasons. Disbudding is a different process with similar results; it cauterizes and thus destroys horn buds before they have grown into horns. Disbudding is commonly performed early in an animal's life, as are other procedures such as docking and castration. In some cases, it can be unnecessary.
Many breeds of cattle and sheep are naturally hornless. The polled gene can occur naturally, and certain breeds lack horns. Although polling is common among cattle and sheep, some varieties of livestock species cannot easily be bred to lack horns naturally. In one case, the poll gene in goats was linked to hermaphrodism in a single study several decades ago, although fertile polled goats have been bred. [3]
Horns are removed because they can pose a risk to humans, other animals and to the bearers of the horns themselves (horns are sometimes caught in fences or prevent feeding). Dehorning is only recommended with local anesthesia and sedation by a veterinarian or a trained professional, [4] although a 2011 study showed that only 10% of dairy farmers follow guidelines. [5] Removal of larger horns is usually performed during spring and autumn to avoid fly season. In very large horns, "tipping" (removal of the tip of the horn) may be recommended to minimize bleeding. Dehorning is not routinely performed, since it is a difficult and painful process for the animal. Instead, most breeders disbud their animals while young, when the process is quick and easy. [6] Dehorning is controversial because of the pain it causes. [7]
Reasons invoked in support of dehorning animals include the following:[ citation needed ]
Arguments against dehorning include the following:
Dehorning can be performed on older animals and is normally performed with local anesthesia (cornual nerve block) by a veterinarian or a trained professional. Removal of larger horns is usually performed during spring and autumn to avoid fly season. [6] Sedation may be recommended, especially for larger animals that require increased restraint. Use of longer-term pain medicine, like nonsteroidal anti-inflammatory drugs, is being researched in the US to ensure food safety.
For mature cattle that were not dehorned when they were young, another common practice is to cut off only the pointed end of the horn. This practice is called horn tipping; it is less stressful on the animal because there is no blood loss and the horn is cut off where there are no longer any nerve endings. [6] This practice does not eliminate the bruising damage done by the horns when cows fight, but it does eliminate the risk of puncture wounds and eye loss from pointed horns.
Disbudding minimizes discomfort and risk, and is performed when horns are small "buds" by one of several methods:
At the same time, research shows that calves who have been disbudded stay less active and suckle more often than the intact controls for at least three weeks after the procedure. This is likely due to their attempts to avoid disturbing partially healed wounds and to relieve discomfort, respectively. It suggests that painkiller medication may need to be administered for a much longer period after the procedure, rather than just right before it. [9]
The animal to be dehorned is usually restrained, often with a dehorning table, or sedated. This ensures that the dehorning procedure can be done safely and properly. Young calves are run through a head gate (similar to a cattle crush) or haltered. Calves more than a few months old are held in a head gate and their head restrained with a dehorning table or chin bar. Smaller animals like sheep and goats may be restrained by hand or with use of halters.
In 2007, the U.S. Department of Agriculture's (USDA) National Animal Health Monitoring System (NAHMS) survey suggested that most cattle in the U.S. were disbudded or dehorned without the use of anesthesia at that time. The survey showed that more than nine out of ten dairy farms practiced dehorning, but fewer than 20 percent of cattle dairy operations used analgesics or anesthesia during the process. While animal rights groups, like the Humane Society of the United States, condemn the practice of dehorning, ending it would mean increased horn-related injuries to cattle and humans. Polled genetics, long a staple in beef cattle breeding are becoming more popular among dairy farmers, with more polled calves being born to dairy cattle every year. Genetic testing can now determine if cattle carry genes for growing horns. [11]
In 2018 a referendum was held in Switzerland on providing additional subsidies to farmers that did not dehorn their livestock (75–90% of livestock in Switzerland had their horns removed). [12] The referendum was a result of farmer Armin Capaul collecting over 100,000 signatures for a vote on the issue. However, the proposal was opposed by the government and rejected by voters. [13]
Veal is the meat of calves, in contrast to the beef from older cattle. Veal can be produced from a calf of either sex and any breed; however, most veal comes from young male calves of dairy breeds which are not used for breeding. Generally, veal is more expensive by weight than beef from older cattle. Veal production is a way to add value to dairy bull calves and to utilize whey solids, a byproduct from the manufacturing of cheese.
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Beef cattle are cattle raised for meat production. The meat of mature or almost mature cattle is mostly known as beef. In beef production there are three main stages: cow-calf operations, backgrounding, and feedlot operations. The production cycle of the animals starts at cow-calf operations; this operation is designed specifically to breed cows for their offspring. From here the calves are backgrounded for a feedlot. Animals grown specifically for the feedlot are known as feeder cattle, the goal of these animals is fattening. Animals not grown for a feedlot are typically female and are commonly known as replacement heifers. While the principal use of beef cattle is meat production, other uses include leather, and beef by-products used in candy, shampoo, cosmetics, and insulin.
Polled livestock are livestock without horns in species which are normally horned. The term refers to both breeds and strains that are naturally polled through selective breeding and also to naturally horned animals that have been disbudded. Natural polling occurs in cattle, yaks, water buffalo, and goats, and in these animals it affects both sexes equally; in sheep, by contrast, both sexes may be horned, both polled, or only the females polled. The history of breeding polled livestock starts about 6000 years BC.
Docking is the intentional removal of part of an animal's tail or, sometimes, ears. The term cropping is more commonly used in reference to the cropping of ears, while docking more commonly—but not exclusively—refers to the tail; the term tailing is used, also. The term has its origins in the living flesh of the tail, commonly known as the dock, from which the animal's tail hairs grow.
A scur is an incompletely developed horn growth. In cattle, scurs are not attached to the skull, whereas horns are attached and have blood vessels and nerves. Scurs may also occur in sheep and goats.
Cattle are large, domesticated, bovid ungulates widely kept as livestock. They are prominent modern members of the subfamily Bovinae and the most widespread species of the genus Bos. Mature female cattle are called cows and mature male cattle are bulls. Young female cattle are called heifers, young male cattle are oxen or bullocks, and castrated male cattle are known as steers.
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The Vaynol is one of the United Kingdom's rarest breeds of cattle with less than 150 breeding animals registered. The breed is currently listed as “critical” on the Rare Breed Survival Trust list. There are currently three officially registered herds of Vaynol cattle existing in the United Kingdom. Together with the Chillingham and White Park cattle, the Vaynol is one of three horned breeds derived from ancient white parkland herds from Britain and Ireland. These park cattle were also the basis of a similar fourth breed, the polled British White.
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Polled Holsteins are cattle born without horns but only occur in a small portion of Holstein cattle. The Holstein breed can go through selective breeding to produce polled calves. Polled is a natural trait for Holsteins but have not been bred for specifically. That is why a very small percentage of Holsteins are naturally polled. Bulls and cows can both carry the polled trait and pass it on to the progeny. Previous testing for polledness were not completely accurate because it was not looking for the gene directly until later discovered. Polled, also known as ‘hornless’ can result in the growth of scurs which are small loose horn growths that do not develop.