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动物实验利弊英语作文 篇1
Nowadays, experimental usage of animal hasbecome a widely concerned issue around the world. People hold diverse views towards it.
Adversaries claim that it is an extremely crude behavior. Animals, especially mammals, like dogs, cats, rabbits, rats, which are the major victims in the experimentation, are usually human’spets. Pet owners are strongly against it for they firmly believe that animals suffer physically and mentally as we do. When equality is advocated in the modern world, it is inhuman to disrespect creatures that are not human beings.
Furthermore, a number of experts pointed out that it would be at high stake of depending on the results of animal experiment; since they differ from us in many ways. Take the body structure for example, we can’t imagine humans try to jump from the height of nine stories without any protection because cats survive out of the same test.
Those in favor of the idea about usage of animal declare that using animal is an advisable choice. On one hand because their bodies are similar in function to ours. For instance, they catch colds, suffer from stomachs and heart diseases, which more importantly influenced by diet and habits. The consequences of the test may not be applied to humans, although they are highly connected to the human situations. On the other hand, those creatures yell and act abnormally when they feel uncomfortable, which is what exactly researchers expect. In addition, there is an easy-to-answer question: isn’t it crueler to test directly on people with little knowledge on the objects’ effects? In a word, there is nothing better than animal that resemble human the best for experiment.
Personally, I am not a supporter of animal experiments, yet there is anything more suitable can replace them, I accept using animals for tests, but take good care of them when they are not in the laboratory.
动物实验利弊英语作文 篇2
Animals were friends or foes of humanity at different times of the human history. In modern times, experiments upon animals have long been a breeding ground for spirited debate. Some animal activists argue that we should ban animal experiments altogether because subjecting animals to experimentation is unjustifiable on moral grounds. Yet some other people contend that the advancement of science necessitates animal testing. Personally, I believe both their views have merit and demerit.
Granted, empirical evidence suggests that many animal experiments are performed callously without any heed to the discomfort or pain that laboratory mammals endure. First and foremost, improper confinement of test animals such as locking them up in cramped cages or poor veterinary is inhumane .It can gravely disrupt natural biological functions of the test animal. Further, the effects of vaccination and vivisection conducted on live rodents, primates and other lab mammals can be gruesome and chilling. They may, in some cases, even constitute sheer torture of live animals.
However, from a more pragmatic perspective, evidence is mounting that animal experimentation is still largely a necessary evil and there is no practical alternative for it at this point. In the first place, it is manifest that drug experimentation on live mammals is far more effectual than experimentation on bacteria or on other lower species in testing drug safety. Drugs that have severe potential side effects on homo sapiens must be tested by pharmaceutical companies on live mammals first to ascertain their toxicity. In the second place, in space research, live animals are still the only viable alternative to humans in testing living creature reaction to outer-space experience on a flight not considered to be sufficiently safe for human astronauts. Lastly, lab research about the behavioral tendencies of chimpanzees, gorillas, orangutans and other members of the primate group is also necessary. It produces valuable outcomes consistently advancing anthropological and genetic studies.
To conclude, I concede that experiments upon animals may induce suffering to the test animals. However, I am convinced that there are no feasible alternatives to this methodology at the current stage of scientific development. On balance , I think that we should allow animals testing to be continued but at the same time use techniques such as analgesic, anesthetic and tranquilizing drugs to minimize the pain inflicted upon the test animal and augment the general welfare of these animals.
动物实验利弊英语作文 篇3
Animal and people, life is equal, human beings have no right to deprive an animal to eat except for reasons other than the second life, people do experiments (fur more) is like killing animal slaughter batch, he was a medical student experiment, optical mouse is a term for any student (not including other experimental animal) more than tens of thousands, millions of lives and therefore the global experimental animal sacrifice again, are all human beings out deliberately cultivate closed colony animal, that is to make simple animal consanguineous marriage, many more varieties of animal produce human congenital defects.
Such as lack of T cells in nude mice, and spontaneously hypertensive rats, spontaneous seizures animal and so on, and do not humane, can be said to be a violation of the laws of nature is more important, from the experimental animal Small is confined in a narrow space, completely is an animal is the most basic survival, and choice of power and they simply move hated doing experiments and many experiments to deliberate replication animal model of the disease, that is, human for sick animals, grouping, treatment or no treatment, finally also executed.
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