Animal 0 Posté(e) le 22 février 2010 Recent advances in neuroscience suggest it may soon bepossible to genetically engineer livestock so that theysuffer much less. Not Grass-Fed, but at Least Pain-FreeBy ADAM SHRIVERPublished: February 18, 2010St. LouisIN the 35 years since Peter Singer's book "AnimalLiberation" was published, jump-starting the animal rightsmovement in the United States, the number of animals used incosmetics testing and scientific research has droppedsignificantly, and the number of dogs and cats killed inshelters has fallen by more than half. Nevertheless, becausethe amount of red meat that Americans eat per capita hasheld steady at more than 100 pounds a year as the populationhas increased, more animals than ever suffer from injuriesand stress on factory farms.Veal calves and gestating sows are so confined as to sufferpainful bone and joint problems. The unnatural high-graindiets provided in feedlots cause severe gastric distress inmany animals. And faulty or improperly used stun guns causethe painful deaths of thousands of cows and pigs a year.We are most likely stuck with factory farms, given that theyproduce most of the beef and pork Americans consume. But itis still possible to reduce the animals' discomfort -through neuroscience. Recent advances suggest it may soon bepossible to genetically engineer livestock so that theysuffer much less.This prospect stems from a new understanding of how mammalssense pain. The brain, it turns out, has two separatepathways for perceiving pain: a sensory pathway thatregisters its location, quality (sharp, dull or burning, forexample) and intensity, and a so-called affective pathwaythat senses the pain's unpleasantness. This second pathwayappears to be associated with activation of the brain'santerior cingulate cortex, because people who have suffereddamage to this part of the brain still feel pain but nolonger find it unpleasant. (The same is true of people whoare given morphine, because there are more receptors foropiates in the affective pain pathway than in the sensorypain pathway.)Neuroscientists have found that by damaging a laboratoryrat's anterior cingulate cortex, or by injecting the ratwith morphine, they can likewise block its affectiveperception of pain. The rat reacts to a heated cage floor bywithdrawing its paws, but it doesn't bother avoiding theplaces in its cage where it has learned the floor is likelyto be heated up.Recently, scientists have learned to genetically engineeranimals so that they lack certain proteins that areimportant to the operation of the anterior cingulate cortex.Prof. Min Zhuo and his colleagues at the University ofToronto, for example, have bred mice lacking enzymes thatoperate in affective pain pathways. When these miceencounter a painful stimulus, they withdraw their pawsnormally, but they do not become hypersensitive to asubsequent painful stimulus, as ordinary mice do.Prof. Zhou-Feng Chen and his colleagues here at WashingtonUniversity have engineered mice so that they lack the genefor a peptide associated with the anterior cingulate gyrus.Like the animals given brain lesions, these mice arenormally sensitive to heat and mechanical pain, but they donot avoid situations where they experience such pain.Given the similarity among all mammals' neural systems, itis likely that scientists could genetically engineer pigsand cows in the same way. Because the sensory dimension ofthe animals' pain would be preserved, they would still beable to recognize and avoid, when possible, situations wherethey might be bruised or otherwise injured.The people who consumed meat from such geneticallyengineered livestock would also be safe. Knockout animalshave specific proteins removed, rather than new onesinserted, so there's no reason to think that their meatwould pose more health risks for humans than ordinary meatdoes.If we cannot avoid factory farms altogether, the least wecan do is eliminate the unpleasantness of pain in theanimals that must live and die on them. It would be farbetter than doing nothing at all.Adam Shriver is a doctoral student in thephilosophy-neuroscience-psychology program at WashingtonUniversity. Partager ce message Lien à poster Partager sur d’autres sites
hop 0 Posté(e) le 22 février 2010 Animals Without Pain, Humans Without Conscience?by Stephanie Ernst - 19/02/10 http://challengeoppression.com/2010/02/19/animals-without-pain-humans-without-conscience/Bizarre, si j'essaie de poster l'article, rien n'apparait. C'est un message vide qui est publié. Si je l'édite, le texte est toujours là, mais il reste en mémoire, toujours rien quand j'envoie. Partager ce message Lien à poster Partager sur d’autres sites
Animal 0 Posté(e) le 22 février 2010 Le voici ma belle hop! Je n'aurai malheureusement pas le temps de le lire avant la fin de la journée (rendez-vous chez le doc ce matin, puis des courses...) A+ tard Animals Without Pain, Humans Without Conscience?2010 February 19Stephanie Ernst.It’s an idea that we saw and heard floated last year: animals “engineered” not to feel pain. And yesterday, Adam Shriver of Washington University, of my own city of St. Louis, explored in the New York Times his solution to the physical suffering we impose on farmed animals; he plainly states that we are “stuck with factory farms, given that they produce most of the beef and pork Americans consume,” and thus, his solution is apparently some kind of necessary, moral, noble one (and for this article, my hat tips once again to my expert link-providing friend on Twitter).I’m left wondering whether they teach critical thinking in that doctoral “philosophy-neuroscience-psychology” program in which Mr. Shriver is enrolled, while hoping that people in the general public see the wrongness of this and stop to consider whether, if this is where we’ve finally arrived, they’re really willing to go this far to continue doing something that already contradicts the values that most hold deep down.First, let’s just look at what Shriver and those in his camp are advocating — that we damage animals’ brains, so that we can damage the rest of their bodies with less guilt, so that we can continue treating them like inanimate objects rather than, oh, I don’t know, rethink what despicable things we’re doing in the first place. The idea that the solution to treating them as objects is to treat them even more like objects (and experiment on who-knows-how-many animals to achieve this non-solution) boggles the mind.When Shriver published these thoughts in Neuroethics last year, Marji responded at the Animal Place blog, and Philosophia and Animal Liberation crafted a thoughtful response as well, so I recommend visits there. [Edit: Unbeknownst to either one of us, Mary and I were writing on this topic at the same time this morning; check out her post at Animal Person as well.] Both are smart, thoughtful posts with excellent points about what eliminating animals’ ability to sense their own pain would do and not do, including in the “not” column eliminate their ability to suffer in general. We human animals know well that some of the worst suffering we experience can sometimes be not related to physical injury and pain at all — and we human animals know well that a great deal of the suffering we impose on our fellow animals is also outside the realm of physical pain. Oh yes, the physical pain we cause them is massive, but the mental and emotional anguish we cause? Equally unimaginable. And were we to suddenly not have to worry (as if our society worries so much now) about their feeling the physical pain we’re causing them, I suspect the ways in which we cause them concurrent mental and emotional distress would only increase.But put aside the discussion of what this horrid practice would and would not entail, and the very premise of Shriver’s argument is incredible. Self-serving and dishonest, it relies on an outright lie: that “we cannot avoid factory farms altogether.” I want to ask Mr. Shriver, “Are you serious?” But clearly he is. He’s been pushing this for a while. Yet surely someone who’s smart enough to work his way into a doctoral program knows that not only can we “avoid factory farms”; we can avoid animal farming altogether. We are not required as a society or as individuals to keep eating animals. And one of the remarkable aspects of Mr. Shriver’s so-called solution, among all the many proposals and justifications offered by people who want to continue eating animals, is that most other people at least pretend to care enough to call for a reduction in the consumption of animals. But Shriver is so ultimately uncritical of what humans are doing and so unwilling to suggest that we just take responsibility and live ethically that he’d rather insist, boldly and with utter dishonesty, that not only the eating of animals but even the intensive farming of animals is impossible to stop, and we should just embrace it and go to extraordinary scientific lengths to make sure we can keep doing it.Apparently, the vastly simpler, kinder, more logical, and more economical solution — that if we want to be kinder to animals and not impose suffering on them, we stop eating them – is just too simple. It’s not the kind of simple solution that propels you into journals and the New York Times or that creates opportunities for loads of research money to come your way, I guess.“The least we can do,” Shriver says, “is eliminate the unpleasantness of pain in the animals that must live and die on [farms]. It would be far better than doing nothing at all.” Talk about a false dichotomy. Our options are not limited to “change nothing; continue on the current path” and “cause brain damage to every one of the tens of billions of farmed animals in the nation.” The least we can do, Mr. Shriver, is first acknowledge that there is no “must” here and then behave as if we have a conscience and not cause them the “unpleasantness of pain” in the first place. The least we can do, if we believe in nonviolence and not killing and causing suffering for nothing more than our own pleasure, is not eat animals or what comes from them, not turn them into units of production, in the first place.Shriver assures readers that “the people who consumed meat [and dairy and eggs, I presume?] from such genetically engineered livestock would also be safe.” Maybe their physical bodies would be safe. But moral integrity would have no chance of coming out of such a “solution” intact.I refuse to believe that this is what we’ve come to, that we are so selfish a society that when faced with the horrors, crises, and injustices of our own making, we would devote ourselves to finding out how we can continue rather than how we can stop — that we would do this, that we would go this far, before simply living our values, before making a far more logical change. Animal agriculture is unsustainable (a problem not addressed at all by Shriver’s plan) and cruel and unjust. But we don’t need nauseating, elaborate schemes such as Shriver’s so that we can continue it. We just need to stop it.—Photo by Elias Bröms retrieved from Wikimedia Commonshttp://challengeoppression.com/2010/02/19/animals-without-pain-humans-without-conscience/ Partager ce message Lien à poster Partager sur d’autres sites
hop 0 Posté(e) le 22 février 2010 Merci Do !Citation :(rendez-vous chez le doc ce matin, puis des courses...) Ca ne va pas bien ? Partager ce message Lien à poster Partager sur d’autres sites
Animal 0 Posté(e) le 23 février 2010 allo ma chère hop, Je suis rentrée tard. Comme tout est loin d'ici, chaque fois qu'il y a les courses à faire, et qu'en plus j'ai un rendez-vous chez le doc, j'en ai toujours pour presqu'une journée complète. Depuis quelques mois, en fait depuis près d'un an maintenant, j'ai des douleurs au niveau du foie et de l'estomac et comme ça semble aller en s'empirant, j'ai décidé de revoir mon doc. Je dois maintenant prendre un rendez-vous dans une clinique pour passer un examen car il dit que selon mes symptômes, il se pourrait que j'ai une pierre qui se soit formée entre l'intestin et le foie ... (Je n'ai jamais entendu parler de ça). Comme j'ai déjà été opérée, (on m'a enlevé la vésicule biliaire), je ne pensais pas que je pourrais à nouveau souffrir d'un problème à ce niveau... mais, enfin, tant que je n'aurai pas passer cet examen, je n'en saurai pas plus. (Je suis sur une liste d'attente et il se pourrait que je doive attendre 2 mois avant de le passer...) Faut pas être pressé! Concernant l'article de Stephanie Ernst, elle a tellement raison. Je n'aurais pas pu mieux exprimer ce que j'ai ressenti en lisant cette nouvelle. Merci hop et bonne nuit, Partager ce message Lien à poster Partager sur d’autres sites
hop 0 Posté(e) le 23 février 2010 Quelle poisse alors ! Il ne t'a rien prescrit ou conseillé contre les douleurs ? Partager ce message Lien à poster Partager sur d’autres sites
Animal 0 Posté(e) le 23 février 2010 même si elles ne me font pas grand chose, je prends déjà des médicaments pour les douleurs à l'estomac depuis plusieurs mois. Mais ce ne sont pas des douleurs insupportables hop. C'est peut-être juste de l'anxiété. J'ai toujours été très stressée et très angoissée et ça s'arrange pas en vieillissant Partager ce message Lien à poster Partager sur d’autres sites
hop 0 Posté(e) le 24 février 2010 Citation :C'est peut-être juste de l'anxiété. J'ai toujours été très stressée et très angoissée et ça s'arrange pas en vieillissant C'est souvent la source de beaucoup de maux et sans doute ça qu'on devrait traiter au départ ou apprendre à gérer. Je ne pense pas aux médics psy qui sont trop addictants, mais aux techniques de respiration, à l'acupuncture, à l'auriculothérapie, au yoga ou autres... Partager ce message Lien à poster Partager sur d’autres sites
Animal 0 Posté(e) le 24 février 2010 Je suis d'accord avec toi hop et je crois aussi que la plupart de nos maux physiques sont souvent causés par notre mal-être intérieur. Je n'ai jamais voulu prendre d'antidépresseurs, même si on a souvent voulu m'en prescrire. Ici au Québec, il y a pas mal de charlatans dans le domaine des médecines alternatives et ces soins coûtent très très chers. Mon père avait déjà eu recours à de l'accupuncture il y a quelques années et il s'était fait brûler la peau du ventre au deuxième degré avec des ventouses. Chaque visite lui coûtait 60$ pour une heure de «traitements»... On a su plus tard que les accupuncteurs de cette clinique n'étaient même pas enregristrés auprès du gouvernement. Il y a aussi bien des gens qui s'affichent comme étant des thérapeutes, comme des massothérapeutes par exemple, mais qui ne le sont pas. Et puis, il y a plusieurs années, un chiropraticien que je consultais pour des torticolis récurrents m'a causé une hernie cervicale, donc pour toutes ces raisons, j'ai pas mal de réticences. Il doit sûrement en exister des bons, mais je reste toujours méfiante Bonne fin d'après-midi ma chère hop Partager ce message Lien à poster Partager sur d’autres sites
hop 0 Posté(e) le 24 février 2010 Mon Dieu ! Compte-tenu de ces expériences, je comprends tes réticences. Partager ce message Lien à poster Partager sur d’autres sites