SIR – Despite a Government commitment in July 2011 to reduce the number of animals that are used in experiments, a total of 4.11 million animal tests were carried out last year, an increase of 8.36 per cent on 2011.

More than half the tests – 2.43 million – were conducted on genetically modified (GM) animals.

During production, huge numbers are killed and discarded.

The National AntiVivisection Society (NAVS) considers that the harm suffered by GM animals can never outweigh any purported benefits


Chief Executive National Anti-Vivisection Society