x million rats and mice are used in US labs every year —- so . . . . ?

I published my estimate of over 110 million mice annually in US labs and got some criticism of my methods and the resulting estimate. Fair enough. So let’s suppose there are “only” some 30 or 50 million per year. What should we do with that info?  Two opposite conclusions from seeing these large numbers: This is tooContinue reading “x million rats and mice are used in US labs every year —- so . . . . ?”

Over 100 Million Mice per Year in US labs? No One Knows

No One Knows. January 2021, I published my article estimating how many mice and rats per year we use in United States labs every year. The reality: No One Knows. For two reasons: The patchwork of US regulations and accreditations means that no one is actually reporting mouse and rat use in a publicly transparent way, givenContinue reading “Over 100 Million Mice per Year in US labs? No One Knows”

Analgesia for Animals: My Lottery Theory of Multimodal Pain Treatment

My Lottery Theory of Multimodal Animal Pain Management: Good lab animal welfare requires effective treatment of any pain scientists cause. It is way too easy to pick a drug from the list, pick a dose, and never really know if the drugs is actually helping the animal feel better. One variation on this is toContinue reading “Analgesia for Animals: My Lottery Theory of Multimodal Pain Treatment”

A new mouse painkiller in your medicine chest

This is what vets in animal laboratories need: a painkiller for mice (and other creatures) that is — Fully effective for all strains, ages and sexes — Completely safe with no unpleasant side effects for the mouse — Will not interfere with the experiments – for neurobiologists, no drowsiness, disruption of Learning or other effectsContinue reading “A new mouse painkiller in your medicine chest”

Pain management details – full reporting for better science and better welfare

I’ve blogged on this before a few years back, here and here. I have published a literature review with Jamie Austin on the topic, and I’m concerned that scientists do not describe how they manage pain in their laboratory animals. In a world of on-line publishing without page limits, many journals allow thorough Methods descriptionsContinue reading “Pain management details – full reporting for better science and better welfare”

Mouse & Monkey Vet My Animal Welfare blog

In this blog, I will take you behind the scenes in animal research. My goal is to show you the animals behind news stories about medical advances. There is a harm-benefit balance in how scientists use animals, and only with detail and transparency can you evaluate for yourself the harms animals experience and the benefitsContinue reading “Mouse & Monkey Vet My Animal Welfare blog”