Animal welfare

• 1. Introduction

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  Animal welfare is the quality of life and overall well-being of animals, and it begins with a question that sounds simple but has split thinkers for centuries: do we owe animals anything at all? Augustine of Hippo, writing against those he called heretics, said of suffering creatures that man has no community of rights with a beast, since the beast lacks a rational soul. Against that stands a network of sanctuaries in India older than most nations, where the sick and aging were sheltered rather than killed. Between those poles sits a vast and contested field. Who decides what a good life for an animal looks like? Can a hen confined in a cage still be said to thrive if she keeps laying? And why did one of the loudest voices in modern animal rights say that, if she could have only one thing, it would be to end suffering? Those tensions run through everything that follows.

• 2. Sanctuaries And Statutes

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  Animal protection laws were enacted as early as the 1st millennium BCE in India, where several kings built hospitals for animals. The emperor Ashoka, who lived from 304 to 232 BCE, issued orders against hunting and slaughter in line with ahimsa, the doctrine of nonviolence. Jainism pushed this further, treating noviolence as its supreme ethical principle. Believing every living being has a soul and can suffer, Jain communities built the world's first widespread network of animal sanctuaries and charitable hospitals, known as panjrapoles. Funded mostly by wealthy Jain merchant guilds, the panjrapoles sheltered, fed, and treated sick, aging, and rescued animals, especially cattle and birds, rather than euthanizing them. This framework shaped the broader legal approach to animal ethics across early Indian history.

  Genghis Khan, in the 13th century CE, protected wildlife in Mongolia during the breeding season that ran from March to October. Western legislation arrived in fragments. The Ireland Parliament passed an act in 1635 against plowing by the tail and pulling the wool off living sheep, and the Massachusetts Colony set down liberties 92 and 93 in its Body of Liberties of 1641. In the Edo period of Japan, Tokugawa Tsunayoshi, who lived from 1646 to 1709, passed several laws on animal welfare, particularly toward dogs, which earned him the nickname the dog Shogun.

  In 1776, English clergyman Humphrey Primatt wrote A Dissertation on the Duty of Mercy and Sin of Cruelty to Brute Animals, one of the first books published in support of animal welfare. Marc Bekoff said that Primatt was largely responsible for bringing animal welfare to the attention of the general public. An organized movement followed in England after 1822, when Irish MP Richard Martin carried the Cruel Treatment of Cattle Act through Parliament, offering protection to cattle, horses, and sheep. Martin helped found the world's first animal welfare organization in 1824, the Society for the Prevention of Cruelty to Animals. When Queen Victoria gave it her blessing in 1840, it became the RSPCA, and it spent members' donations on inspectors who identified abusers and reported them to authorities.

• 3. The Five Freedoms

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  In 1965, the UK government commissioned an investigation led by professor Roger Brambell into the welfare of intensively farmed animals. The inquiry came partly in response to Ruth Harrison's 1964 book, Animal Machines. Acting on Brambell's report, the government set up the Farm Animal Welfare Advisory Committee in 1967, which became the Farm Animal Welfare Council in 1979. Its first guidelines said animals require the freedom to stand up, lie down, turn around, groom themselves, and stretch their limbs.

  Those early recommendations grew into the Five Freedoms, a list of positive conditions that an animal should be given. They are freedom from thirst and hunger through fresh water and a proper diet; freedom from discomfort through shelter and a comfortable resting place; freedom from pain, injury, and disease through prevention or rapid treatment; freedom to express most normal behavior through space, facilities, and the company of its own kind; and freedom from fear and distress. This positive-conditions approach is one way the field defines welfare. Professor John Webster offers a shorter version, advocating three conditions: living a natural life, being fit and healthy, and being happy. Webster's three principles and the Five Freedoms share a starting point, that good welfare can be described by what an animal is provided rather than only by what it avoids.

• 4. Bred For Production

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  Broiler chickens are bred to grow very large, to produce the greatest quantity of meat per animal, and that selection turns against the bird. The fast-growing breeds have a high rate of leg deformities, because the heavy breast muscles distort the developing legs and pelvis. Unable to support their own weight, the birds often become lame or break their legs. The extra weight strains their hearts and lungs, and a fluid buildup called ascites often develops. In the UK alone, up to 20 million broilers each year die from the stress of catching and transport before they ever reach the slaughterhouse. That stress can be measured in elevated heart rate and cortisol, and seen in their behavior when they are threatened, alone, or unable to interact.

  Factory farming, where large numbers of animals are kept in confinement at high stocking densities, sits at the center of these concerns. Battery cages, veal crates, and gestation crates limit natural behavior and produce abnormal ones such as tail-biting, cannibalism, and feather pecking. Routine invasive procedures include beak trimming, castration, and ear notching. More extensive methods such as free range carry their own problems, including the mulesing of sheep and predation by wild animals. Free range also raises biosecurity risks, since more contact between livestock and wild populations can spread zoonoses. Violations have been recorded most in intensively bred chicken, pig, and cattle, while welfare in semi-intensive species such as sheep and goats is now drawing more attention.

  The method of slaughter draws separate concern, especially ritual slaughter, since the public generally feels that killing an animal reduces its welfare even when the killing itself causes no suffering. That logic extends to premature killing, such as chick culling, in which male chicks are slaughtered right after hatching because the laying hen industry has no use for them. The same practice appears in goat and cattle milk production. A 2023 report by the Animal Welfare Institute found that animal welfare claims by companies selling meat and poultry lacked adequate substantiation in roughly 85% of analyzed cases.

• 5. Lives In The Water

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  Captive cetaceans are kept for display, research, and naval operations, and most live in concrete tanks that are easy to clean but echo their own sounds back at them. Keepers feed them dead but disease-free fish, protect them from predators and injury, monitor their health, and provide enrichment. Some live in lagoons with natural soil and vegetated sides. They cannot form their own social groups, and related animals are usually separated for display and breeding. Military dolphins swim free during operations and training, then return to pens. Captives are trained to present themselves for blood samples, health exams, and noninvasive breath samples taken above their blow holes, after which staff watch for signs of infection.

  Boat engines are the quiet danger to wild cetaceans. The noise from research vessels, whale watchers, and other boats reduces the animals' ability to echolocate and communicate, and unshielded propellers cause serious injuries to those that come close. Electric engines are far quieter but are not widely used, even for holding position, which needs little power. Vancouver Port offers discounts for ships with quiet propeller and hull designs, and other areas have reduced speeds. The US Coast Guard has proposed propeller-guard rules to protect human swimmers but has not adopted any, while the US Navy uses propeller guards to protect manatees in Georgia. Ducted propellers drive more efficiently at speeds up to 10 knots and shield animals beside them, but need grilles to keep animals from being drawn into the duct.

  Research itself can injure the animals it studies. Attaching satellite trackers and taking biopsies for pollution and DNA work means either capturing and releasing the cetacean or shooting it from a distance with a dart gun. One cetacean died of a fungal infection after being darted, caused either by an incompletely sterilized dart or by ocean water entering the wound. Researchers have not yet managed to use drones to capture noninvasive breath samples. Among efforts to improve life for wild cetaceans is offering human music; Canadian rules permit quiet music but forbid noise that may resemble whale songs or calls underwater.

• 6. Welfare Or Rights

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  Welfarism holds a utilitarian view: animals may be exploited if the suffering and costs of using them are less than the benefits to humans. Robert Garner calls this the most widely held position in modern society, and points to the philosopher Robert Nozick for the clearest statement of it. Nozick labeled it utilitarianism for animals, Kantianism for people, meaning one maximizes the total happiness of all living beings while placing strict limits on what may be done to humans. Animals, in this view, may be used or sacrificed only if the benefits outweigh the loss inflicted. Chef Hugh Fearnley-Whittingstall's meat manifesto offers a softer version, asking eaters whether the animals behind their food have lived well and been cared for by someone who respects them.

  Gary L. Francione coined the term new welfarism in 1996 to name a middle path. New welfarists want to abolish the causes of suffering, such as fur farms and animal experiments, but in the short term they work to improve conditions, lobbying for less constrictive cages and fewer animals in laboratories. Increased affluence over recent decades gave consumers the disposable income to buy from high-welfare systems, helping drive demand for better farm conditions. A 2006 survey found that 63% of EU citizens showed some willingness to change where they shop to buy more welfare-friendly products.

  The sharpest criticism comes from animal rights advocates such as Francione and Tom Regan, who call the welfare position inconsistent and ethically unacceptable. Philosopher Steven Best argues that an emphasis on welfarism legitimizes any human use of animals as long as people are not cruel. Sociologist David Nibert writes that welfare reforms are usually modest and localized, and are far outpaced by the growth of concentrated animal feeding operations. Abolitionism holds that focusing on welfare may even prolong suffering by making property rights over animals look less unattractive, and aims instead for a paradigm shift in which animals are no longer property. Yet some rights groups, including PETA, back welfare measures in the short term. In an interview, PETA's Ingrid Newkirk said that if she could have only one thing, it would be to end suffering.

• 7. Defining A Good State

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  The American Veterinary Medical Association says an animal is in a good state of welfare if, by scientific evidence, it is healthy, comfortable, well nourished, safe, able to express innate behavior, and not suffering from pain, fear, and distress. The AVMA offers eight principles for evaluating welfare policy, including that animals be treated with respect and dignity throughout their lives and, when necessary, given a humane death. The World Organisation for Animal Health uses nearly identical language in its Terrestrial Animal Health Code, defining welfare as how an animal is coping with the conditions in which it lives, and noting that welfare describes the state of the animal while care and husbandry describe its treatment.

  Not every definition agrees on the same yardstick. The high-production view once measured farm animal welfare chiefly by whether the animal produced well, but many animals stay highly productive in conditions where good welfare is almost certainly compromised, such as layer hens in battery cages. Professor Ian Duncan and professor Marian Dawkins focus instead on feelings. Duncan wrote that welfare is about the feelings experienced by animals, the absence of suffering and probably the presence of pleasure, and that these feelings are what should be assessed. Dawkins put it more bluntly, writing, Let us not mince words: Animal welfare involves the subjective feelings of animals.

  Professor Donald Broom defines welfare as an animal's state with regard to its attempts to cope with its environment, including how hard it must work to cope and whether it succeeds or fails. He says welfare varies along a continuum from very good to very poor, best studied with a wide range of measures. Webster criticized this for making no attempt to say what counts as good or bad welfare. The welfare economist Yew-Kwang Ng went in another direction, proposing welfare biology in his 1995 paper as a positive science studying living things with respect to their welfare, defined as net happiness, or enjoyment minus suffering.

• 8. The Reach Of The Law

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  The Animal Welfare Act 2006 makes owners and keepers in the UK responsible for meeting their animals' welfare needs, and it reaches far beyond pets into agriculture, entertainment, and research. The needs it lists include a suitable environment, a suitable diet, the chance to show normal behavior, appropriate company or separation from other animals, and protection from pain, injury, suffering, and disease. Anyone cruel to an animal or failing its needs may be banned from owning animals, fined up to 20,000 pounds, and sent to prison for up to six months. Research animals fall under the Animals (Scientific Procedures) Act 1986, administered by the Home Office, which originally protected all living vertebrates other than humans. In 1993 an amendment added a single invertebrate, the common octopus, and revised legislation in January 2013 extended protection to all living cephalopods, with fish and amphibia protected once they can feed independently.

  In the United States, a national law to protect animals took many years to arrive, finally appearing as the Animal Welfare Act of 1966, though a number of states had passed anti-cruelty laws between 1828 and 1898. The Humane Slaughter Act aims to reduce livestock suffering during slaughter. Voters have driven much of the recent change. In 2002, Floridians passed Amendment 10 by 55% to 45% to ban gestation crates for pregnant pigs. Arizona voters passed Proposition 204 in 2006 with 62% support, banning veal crates for calves and gestation crates for breeding sows, and in 2008 California passed Proposition 2, the Prevention of Farm Animal Cruelty Act, setting new space requirements starting in 2015.

  Every US institution using vertebrate animals for federally funded research must have an Institutional Animal Care and Use Committee, which reviews protocols and inspects facilities. The USDA reported that the total number of animals used in the US in 2005 was almost 1.2 million, a figure that excludes rats, mice, and birds. Those uncounted species are not covered by welfare legislation yet make up roughly 90% of research animals. That gap, between the animals the law counts and the far larger number it does not, marks where the field's next arguments are likely to be fought.