Dehorning

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Dehorning

 

the artificial removal of horns or the prevention of their growth. Dehorning is primarily performed on cattle and rams to prevent injuries and to prevent diseases of the horns. In order to prevent horn growth in calves, various chemical substances, such as alkalis, sulfuric acid, and trichloride solution, are rubbed into the rudiments of the horns in the first three to 15 days after birth. In calves 30–60 days old, the rudimentary horn is excised with a tubular scalpel. In adult animals, a bloodless method is used in which a rubber ring is applied at the base of the horns; in 28–47 days, the horns atrophy and fall off. An electrical or wire saw can also be used, but this is not a bloodless method. Dehorning is contraindicated in the second half of gestation.

References in periodicals archive ?
The white rhino that Naylor's crew has just dehorned has been given an antidote to the tranquilizer, and is starting to come round.
"With all 16 rhinos safely captured in South Africa and transported over 700 km across an international border, dehorned and safely released into prime habitat, the second and most arduous phase of monitoring and security has begun," Reilly said.
Antler blood collected when antler is cut, is called dehorned blood, and has been used to promote health in Asia for thousands of years, but studies have shown that there is no difference between dehorned blood and circulatory blood (Choi et al., 1998).
Similarly, the frame follows the familiar lines of the as-issued M1911A1 with a short trigger, molded, fully-checkered plastic stocks, and a spur hammer that has been thoughtfully dehorned. The mainspring housing is arched and grooved, and the thumb safety has the small tab.
Upon further investigation, Zimbabwean authorities had discovered rotting carcasses of dehorned elephants.
Since rhinos are usually killed for their horns, Sawyer was asked if there is any possibility to salvage the lives of these animals when they are being dehorned.
These animals were all last comprehensively dehorned in May 2010, and neither parks has lost a single rhino due to poaching since then.
Assam Police official Atul Saikiya said the guards found a carcass of dehorned male rhino with bullet injuries in a forest in the Rongamati Pahumara area under the Agoratoli Forest Range.
She said she is not just fighting the case of innocent Aafia, but also of each and every man and woman of Pakistan, who were mistreated, dehorned, trafficked, kidnapped and killed, whose right to life and property was usurped.
"When we came to the guest house the next morning the rhino lay on its side dehorned," said Susan Lottering, the bemused owner of the farm near Jeffreys Bay in the south of the country.
Cows and pigs are castrated without pain relief, dehorned, branded.