The subsequent concussion is responsible for the unconsciousness of the animal. If you have questions, please contact your company administrator. (No Date). There are several models available including standard and heavy duty .22 or .25 caliber stunners. CASH® Special Captive Bolt Standard Stunner Gun - .22 Caliber, CASH® Special .25 Caliber Heavy-Duty Stunner - Regular Bolt, Blitz-Kerner Non-Penetrating Captive Bolt Stunner, CASH® Special .25 Caliber HD Extended Bolt Stunner, CASH® Special .25 Caliber Non-Penetrating Heavy-Duty Stunner, Schermer KS Self-Retracting Captive Bolt Stunner, CASH® Magnum .25 Caliber FreeFlight Captive Bolt Stunner - Regular Bolt, Jarvis® .25 Caliber Standard Bolt Stunner - Type C, CASH® Magnum XL Penetrating Captive Bolt Stunner, CASH® Magnum .25 Caliber FreeFlight Captive Bolt Stunner - Long Bolt, Schermer KC Non-Penetrating Concussion Head Stunner. Observations in a slaughter plant indicate that a single electrical current passed from the forehead to the side of the body may be effective. Meat Science. Problems with dehydrated cattle are most likely to occur in cattle that have been trasported long distances. Click here to return to the Homepage for more information on animal behavior, welfare, and care.
and Wotton, S.B. Cash Special stunners are rugged and reliable with few moving parts so you'll have less repair worry. High frequency electrical stunning in ruminants and poultry for halal meat production. Even though the New Zealand electric stunner was working perfectly, many animals showed signs of return to sensibility such as blinking and rhythmic breathing. Capable of firing only when pressed firmly against a surface (typically the animal's forehead), the device fires a small projectile through the animal's skull.

There are several models available including standard and heavy duty .22 or .25 caliber stunners. Problems with dehydrated cattle are most likely to occur in cattle that have been trasported long distances. 59: 849-860. This is a normal sign of a grand mal epileptic seizure. Animal Production Science. HSA. 202:124-134.).

The veterinarian can then either leave the animal to die from the projectile wound or administer lethal drugs. In the New Zealand system the current passes from a neck stanchion to a nose plate.

Several scientific studies have shown that immobilization of conscious sensible animals is very detrimental to animal welfare. This method is currently the most effective type of stunning, since it physically destroys brain matter (increasing the probability of a successful stun), while also leaving the brain stem intact and thus ensuring the heart continues to pump during the exsanguination.

Shermer's stunners feature a safer trigger design to prevent unintentional firing. In some veal operations, a non-penetrating concussive stunner is used in order to preserve the brains for further processing. Electric stunning is much more likely to fail and not produce insensibility in dehydrated cattle. A captive bolt pistol or gun (also variously known as a cattle gun, stunbolt gun, bolt gun, or stunner) is a device used for stunning animals prior to slaughter. To safely wet the electrodes during the stun, a small stream of water should be applied continuously during the stun.
It differs from a true captive bolt gun in that the projectile is not retractable; it is similar in operation to a powder-actuated nail gun or conventional firearm. All Rights Reserved. [3], The action of a non-penetrating stunner is similar, but the bolt is blunt with a mushroom-shaped tip. Meat Focus. This current is NOT a substitute for an effective head stun.

32-36. When head only electrical stunning is used the bovine must be bled within 10 seconds. The bolt penetrates the skull of the animal, enters the cranium, and catastrophically damages the cerebrum and part of the cerebellum. Captive bolt pistols are of three types: penetrating, non-penetrating, and free bolt. Even though the heart is stopped by the electrical current, the animal may feel the shock. January, pp. The cartridges typically use 2 to 3 grains (130 to 190 mg) of smokeless powder but can use up to 7 grains (450 mg) in the case of large animals such as bulls. The song "Captive Bolt Pistol" by British, A veterinarian's "horse gun" is used as a murder weapon in the episode entitled "Confection" of the British TV series. The body electrode should be isolated from a steel restraining device. There have been a number of cases where a captive bolt pistol has been used for homicide, including: Device used for stunning animals before slaughter, Learn how and when to remove this template message, "Note for guidance on minimising the risk of transmitting animal spongiform encephalopathy agents via human and veterinary medicinal products", AVMA Guidelines for the Euthanasia of Animals: 2013 Edition, https://en.wikipedia.org/w/index.php?title=Captive_bolt_pistol&oldid=972615956, Wikipedia articles needing page number citations from December 2017, Articles needing additional references from November 2009, All articles needing additional references, Articles with unsourced statements from July 2019, Creative Commons Attribution-ShareAlike License. Gregory, N.G., 2001. The velocity of the bolt is usually 55 metres per second (180 ft/s) in the case of small animals and 75 metres per second (250 ft/s) in the case of large animals.

The Blitz-Kerner Captive Bolt Stunners are an affordable and safe solution in humane animal euthanization. The bolt consists of a heavy rod made of corrosion-resistant alloys, such as stainless steel. The current may bypass the brain. The captive bolt pistol was invented in 1903 by Dr. Hugo Heiss, former director of a slaughterhouse in Straubing, Germany.[1]. The bolt is actuated by a trigger pull and is propelled forward by compressed air, a spring mechanism, or by the discharge of a blank round ignited by a firing pin. 81:51-56. This must NOT be applied by a person holding a hose. The bolt is usually not visible in a stunner in good condition. When electric stunning is assessed for return to sensibility, immobilization devices must be turned off. 2017. Wotton, S.B., Gregory, N.G., Whittington, P.E., and Parkman, I.D., 2000. head to body stun kill. I have observed this problem in three different plants. It must be applied by a separate pipe system that is NOT touched by people during stunning. The goal of captive bolt stunning is to inflict a forceful strike on the forehead with the bolt in order to induce unconsciousness. [2] Captive bolts allow for meat trimmings from the head to be salvaged. The Blitz-Kerner Captive Bolt Stunners are an affordable and safe solution in humane animal euthanization. Another alternative would be modification of a. Profiles of currents during electric stunning.

The Jarvis Beef Stunner: Effects of a prototype chest electrode. They are afraid of the "shsh" sound when the trough refills, and may refuse to drink in the lairage at the plant. Head restraint devices that cause 5% or more of the cattle to vocalize (moo or bellow) are not acceptable. Electrical stunning of cattle. The free bolt stunner is used for emergency, in-the-field euthanasia of large farm-animals that cannot be restrained. © document.write(new Date().getFullYear()); QC Supply. This type of stunner is less reliable at causing immediate unconsciousness than penetrating types; however, it has undergone a resurgence of popularity because of concerns about mad cow disease. The Magnum 25 Captive Bolt Stunner is self-retracting, self-cleaning and shock absorbing. Sabow, A.B., Nakyinsige, K., et al. He’s producing calves with muscle shape, depth of body and great growth all coming in a calving-ease package. Sabow, A.B., et al. The use of penetrating captive bolts has largely been discontinued in commercial situations in order to minimize the risk of transmission of disease. Livestock Scienct. [2] One disadvantage of this method is that brain matter is allowed to enter the blood stream, possibly contaminating other tissue with bovine spongiform encephalopathy (BSE, colloquially known as mad cow disease). Even though the New Zealand electric stunner was working perfectly, many animals showed signs of return to sensibility such as blinking and rhythmic breathing.

To induce instant insensibility, the current must enter the brain and cause a grand mal epileptic seizure. Some systems have failed due to high electrical resistance through the bovine's hair. There is no danger of ricochet or over-penetration as there is with regular firearms. Captive bolt stunners are safer to use in most red meat slaughter situations. Another problem is that a hand held electrode applied to the head often fails to maintain contact when the animal falls unless it's head is held in a restraing headholder. Some animals that have been drinking from ponds or large tanks may refuse to drink from small water troughs with an automatic float. 15% Off Heat Bulbs & Lamps on Orders of $100+.

For the initial head stun, an electrical frequency of 50 to 60 Hz is most effective. This may result in the animal feeling the shock. In the 2020 film Bloodshot, Martin Axe uses a captive bolt gun to kill Ray’s wife, Gina. When cardiac arrest stunning is used, the tonic and clonic phase of the epileptic seizure will be partially blocked by the heart stopping current. In Fear the walking dead (season 1, episode 6), it is explained that a captive bolt pistol is used to prevent the dead from turning, In the movie butcher boy the main character kills his neighbour with a bolt gun, This page was last edited on 13 August 2020, at 01:20. In some plants, to stop kicking after stunning, an immobilizing current is applied to paralyze the muscles. New Zealand Veterinary Journal. After the head stun, a second current can be applied to the body to stop the heart. The two stage stun described here has been verified by scientific research. Immobilization of a conscious animal with a weak electric current is highly aversive. Australian Veterinary Journal.