Presentation on theme: "Dehorning/Disbudding of Cattle and Calves Why it should and shouldn’t be practiced Kristy, Harriet & Michaela."— Presentation transcript:
Dehorning/Disbudding of Cattle and Calves Why it should and shouldn’t be practiced Kristy, Harriet & Michaela
What is it? Disbudding Horns are removed at the horn bud stage In calves can be done as young as 3 weeks of age Dehorning It is the process of removing or stopping the growth of horns on cattle
Why is it done Prevent injury towards farm workers/cattle handlers Prevent injury towards other cattle/animals on the property Prevent injury to itself Cheaper and easier to sell at sale yards and meat works
Not cattle you want to come across!!
How is it done - Calves In calves it is generally done at an ages between 3-6 weeks old Most practiced methods of dehorning are: Hot Iron Dehorning Paste Correct restraint to insure no accidents With both procedures appropriate gloves need to be worn by applicator and all dehorning should be completed in dry weather.
Hot Iron Calf needs to be restrained correctly in a calf crush The Hot Iron needs to be ready and at the correct temperature The calf’s ear needs to be held/placed out of the way The tip of the Iron is places on the horn bud and slight pressure is applied When smoke is seen from the surrounding hair burning the iron is slowly rotated The Iron is applied for a further 10-15 seconds then removed.
Dehorning Paste Restrain calf correctly in crush Expose the horn bud Apply a thin layer of paste over bud using a wooden applicator Re-position the hair over the paste and horn bud to insure the paste stays in place and reduces irritation to other facial skin of the calves
How is it done – older calves Some calves get missed getting dehorned due to the mass amount farmers and breeders need to get done. Over the age of 3 months and the horn has grown over 4 inches and a Scoop, Gouge or Barnes dehorner need to be used
How it is done Calf is correctly restrained Sedation or local anesthetic is administered The jaws of the dehorner are placed over the horn bud Pressing the dehorner against the head, maintain the pressure, bring blades together to remove the skin and horn bud Bleeding is controlled by pulling on artery or using a hot iron Dehorner should always be disinfected between calves
How is it done - Cattle Cattle dehorning is done with vet supervision as Anesthetics need to be used Beast is restrained in a cattle crush Caution when using dehorner or “loppers” and even hand or electric saws Dehorners are placed around beasts horn at the required length and amputated as quickly but stress free and quiet as possible
Cattle –Horn-Tipping The tip of the horn is removed using the same equipment as before Less pain and stress as there is no blood loss Does not eliminate damage to other animals, handlers or the beast itself
Procedures after dehorning Make sure the animal is left to bleed out freely Avoid leaving animals in yards as they can pass on infection with open wounds Straight onto good nutritional feed Check on the animals a few times for a few days to ensure bleeding has stopped and no infection has occurred
Reasons horns should stay Dehorning/disbudding is painful without meds Takes time and money Provide a secure point for roping or holding animals head Traditional in some breeds e.g. Highland
Dealing with Horned Cattle Even without horns cattle can be dangerous Horned cattle are capable of causing severe injury using quick thrusts sideways and frontwards – Handlers need to be aware of the arc of the swing at all times Never leave the cattle out of sight when working in yards as they are a smaller area than a paddock Minimum stress when herding or dealing with horned animals as they know there horns can do damage
What MPI say “Cattle with horns are dangerous – to people and to other animals – and also contribute to carcass downgrading” NZVA President Dr. Richard Wild “Calves should be disbudded early and with proper pain relief” (NZVA) & (NZWAC) “Dehorning as calves is a much safer and less traumatic for both the animal and the handler” NZVA President Dr. Richard Wild “Sufficient animal management plans insure that they disbudding is done at the appropriate age for the calves” NZVA President Dr. Richard Wild http://www.biosecurity.govt.nz/media/22-9- 08/disbud-hurts Ministry of Primary Industries
References http://en.wikipedia.org/wiki/Livestock_dehorning This page was last modified on 22 May 2013 at 18:40, taken from: “RVCS List of Mutilator Procedures”. Retrieved 9 December 2011 “Pain in animals”. Retrieved 3 October 2012 “Peta video on dairy dehorning”. Peta. Retrieved 17 October 2012 “Dehorning: ‘Standard Practice’ on Dairy Farms”. Anna Schecter & Drew Sandholm. ABC News, 28 January 2012 The welfare of extensively managed dairy cattle - a review. Applied Animal Behavior Science, 42: 161-182. Hemsworth, P.H., Barnett, J.L., Beveridge, L. and Matthews, L.R. (1995). Beef Cattle Breeding & Management. Popular Books, French's Forest. Beattie, William A. (1990).
Reference http://www.biosecurity.govt.nz/media/22-9-08/disbud-hurts http://www.nzva.org.nz/policies/dehorning-cattle-and-disbudding- calves-policy Lisa Gibbison, Communications Adviser, MAF Biosecurity New Zealand, Dr Peter O’Hara, Chairman, National Animal Welfare Advisory Committee (NAWAC) Dr Richard Wild, President, NZVA 22 September 2008 http://www.dehorning.com/ 2013 H.W. Naylor Co http://www.legislation.govt.nz/act/public/1999/0142/latest/DL M49664.html written by the New Zealand government. 14 October 1999 modified last July 2013