A free-range egg farm which supplies Tesco is at the centre of a hen ‘neglect’ probe. Animal welfare advocates have filmed inside Hockerwood Park Farm in Southwell, which houses 42,000 hens and sells eggs to supermarket giant Tesco through The Happy Egg Co. According to Animal Justice Project activists, there were cases of severe prolapses, wings that looked broken, and widespread feather loss inside the poultry houses. Dying and decaying birds were allegedly seen on the shed floors. Veterinary professor of animal welfare at University of Winchester, Andrew Knight, said: “Numerous hens evidenc…