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The voltaic pile was the first electrical battery that could continuously provide an electric current to a circuit. It was invented by Italian chemist Alessandro Volta, who published his experiments in 1799. Its invention can be traced back to an argument between Volta and Luigi Galvani, Volta's fellow Italian scientist who had conducted experiments on frogs' legs. Use of the voltaic pile enabled a rapid series of other discoveries, including the electrical decomposition (electrolysis) of water into oxygen and hydrogen by William Nicholson and Anthony Carlisle (1800), and the discovery or isolation of the chemical elements sodium (1807), potassium (1807), calcium (1808), boron (1808), barium (1808), strontium (1808), and magnesium (1808) by Humphry Davy.
In livestock agriculture and the meat industry, a slaughterhouse, also called an abattoir, is a facility where livestock animals are slaughtered to provide food. Slaughterhouses supply meat, which then becomes the responsibility of a meat-packing facility.
Mary Temple Grandin is an American academic, inventor, and ethologist. She is a prominent proponent of the humane treatment of livestock for slaughter and the author of more than 60 scientific papers on animal behavior. Grandin is a consultant to the livestock industry, where she offers advice on animal behavior, and is also an autism spokesperson.
Animal welfare is the well-being of non-human animals. Formal standards of animal welfare vary between contexts, but are debated mostly by animal welfare groups, legislators, and academics. Animal welfare science uses measures such as longevity, disease, immunosuppression, behavior, physiology, and reproduction, although there is debate about which of these best indicate animal welfare.
A feedlot or feed yard is a type of animal feeding operation (AFO) which is used in intensive animal farming, notably beef cattle, but also swine, horses, sheep, turkeys, chickens or ducks, prior to slaughter. Large beef feedlots are called concentrated animal feeding operations (CAFO) in the United States and intensive livestock operations (ILOs) or confined feeding operations (CFO) in Canada. They may contain thousands of animals in an array of pens.
Exsanguination is the loss of blood from the circulatory system of a vertebrate, usually leading to death. The word comes from the Latin 'sanguis', meaning blood, and the prefix 'ex-', meaning 'out of'.
In Judaism, shechita is ritual slaughtering of certain mammals and birds for food according to kashrut. One who practices this, a kosher butcher is called a shochet.
A dog collar is a piece of material put around the neck of a dog. A collar may be used for restraint, identification, fashion, protection, or training. Identification tags and medical information are often placed on dog collars. Collars are often used in conjunction with a leash for restraining a dog. Collars can be traumatic to the trachea if the dog pulls against the restraint of the leash, causing severe pressure to the neck. Use of a harness instead of a collar may be beneficial for dogs prone to tracheitis or those with a collapsed trachea. Conversely, dog breeds with slender necks or smaller heads may easily slip out of collars that are too loose. This can be avoided by using a martingale dog collar which tightens to distribute pressure around the neck when training the dog not to pull. Any style of dog collar must be properly fitted to ensure safety and collars should not be worn when the dog is unattended.
The flight zone of an animal is the area surrounding an animal that if encroached upon by a potential predator or threat, including humans, will cause alarm and escape behavior. The flight zone is determined by the animal's flight distance, sometimes called flight initiation distance (FID) which extends horizontally from the animal and sometimes vertically. It may also be termed escape distance, alert distance, flush distance, and escape flight distance.
A cattle prod, also called a stock prod or a hot stick, is a handheld device commonly used to make cattle or other livestock move by striking or poking them. An electric cattle prod is a stick with electrodes on the end which is used to make cattle move via a relatively high-voltage, low-current electric shock. The electric cattle prod is said to have been invented by Texas cattle baron Robert J. Kleberg, Jr. of the King Ranch around 1930, although versions were sold as early as 1917.
The Humane Slaughter Act, or the Humane Methods of Livestock Slaughter Act, is a United States federal law designed to decrease suffering of livestock during slaughter. It was approved on August 27, 1958. The most notable of these requirements is the need to have an animal completely sedated and insensible to pain. This is to minimize the suffering to the point where the animal feels nothing at all, instead blacking out and never waking. This differs from animal to animal as size increases and decreases. Larger animals such as bovines require a stronger method than chickens, for example. Bovines require electronarcosis or something equally potent, though electronarcosis remains a standard. The bovine would have a device placed on their head that, once activated, sends an electric charge that efficiently and safely stuns them. Chickens, on the other hand, require much less current to be efficiently sedated and are given a run under electrically charged water. To ensure that these guidelines are met, the Food Safety and Inspection Service inspectors at slaughtering plants are responsible for overseeing compliance, and have the authority to stop slaughter lines and order plant employees to take corrective actions. Although more than 168 million chickens and around 9 billion broiler chickens are killed for food in the United States yearly, the Humane Slaughter Act specifically mentions only cattle, calves, horses, mules, sheep and swine.
An animal product is any material derived from the body of a non-human animal or their excretions. Examples are meat, fat, blood, milk, eggs, honey, and lesser known products, such as isinglass, rennet, and cochineal.
An immobiliser or immobilizer is an electronic security device fitted to a motor vehicle that prevents the engine from being started unless the correct key is present. This prevents the vehicle from being "hot wired" after entry has been achieved and thus reduces motor vehicle theft. Research shows that the uniform application of immobilisers reduced the rate of car theft by 40%.
Electrofishing is a fishing technique that uses direct current electricity flowing between a submerged cathode and anode. This affects the movements of nearby fish so that they swim toward the anode, where they can be caught or stunned.
Livestock are the domesticated animals raised in an agricultural setting in order to provide labour and produce diversified products for consumption such as meat, eggs, milk, fur, leather, and wool. The term is sometimes used to refer solely to animals who are raised for consumption, and sometimes used to refer solely to farmed ruminants, such as cattle, sheep, and goats. Horses are considered livestock in the United States. The USDA classifies pork, veal, beef, and lamb (mutton) as livestock, and all livestock as red meat. Poultry and fish are not included in the category. The latter is likely due to the fact that fish products are not governed by the USDA, but by the FDA.
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.
Tza'ar ba'alei chayim, literally "suffering of living creatures", is a Jewish commandment that bans causing animals unnecessary suffering. This concept is not clearly enunciated in the written Torah, but was accepted by Talmudic scholars as being a biblical mandate. It is linked in the Talmud from the biblical law requiring people to assist in unloading burdens from animals.
In chemical analysis, capillary electrochromatography (CEC) is a chromatographic technique in which the mobile phase is driven through the chromatographic bed by electro-osmosis. Capillary electrochromatography is a combination of two analytical techniques, high-performance liquid chromatography and capillary electrophoresis. Capillary electrophoresis aims to separate analytes on the basis of their mass-to-charge ratio by passing a high voltage across ends of a capillary tube, which is filled with the analyte. High-performance liquid chromatography separates analytes by passing them, under high pressure, through a column filled with stationary phase. The interactions between the analytes and the stationary phase and mobile phase lead to the separation of the analytes. In capillary electrochromatography capillaries, packed with HPLC stationary phase, are subjected to a high voltage. Separation is achieved by electrophoretic migration of solutes and differential partitioning.
Most fish possess highly developed sense organs. Nearly all daylight fish have colour vision that is at least as good as a human's. Many fish also have chemoreceptors that are responsible for extraordinary senses of taste and smell. Although they have ears, many fish may not hear very well. Most fish have sensitive receptors that form the lateral line system, which detects gentle currents and vibrations, and senses the motion of nearby fish and prey. Sharks can sense frequencies in the range of 25 to 50 Hz through their lateral line.
Electronarcosis, also called electric stunning or electrostunning, is a profound stupor produced by passing an electric current through the brain. Electronarcosis may be used as a form of electrotherapy in treating certain mental illnesses in humans, or may be used to render livestock unconscious prior to slaughter.
References
- ↑ "What is electro-immobilisation and what impact does it have on animal welfare? – RSPCA Knowledgebase" . Retrieved 2023-11-24.
- 1 2 Grobler, Miemie (April 2018). "Study report: Systematic literature review on the animal welfare aspects of the use of electro-immobilisation in livestock" (PDF).
- ↑ Grandin, Temple. "Electro-immobilization is not a humane method of restraint". www.grandin.com. Retrieved 2023-11-24.
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