Battery cage chinchilla and foxes in fur farming, and most recently for the Asian palm civet for kopi luwak production of coffee. An early reference to battery cages appears in Milton Arndt's 1931 book, "Battery Brooding", where he reports that his cage flock was healthier and had higher egg production than his conventional flock. At this early date, battery cages already had the sloped floor that allowed eggs to roll to the front of the cage, where they were easily collected by the farmer and out of the hens' reach. Arndt also mentions the use of conveyor belts under the cages to
Malayan civet the Malay civet includes Indonesia, Malaysia, Brunei, the Philippines and Singapore. In Malaysia, it occurs in Borneo, Banggi Island, Langkawi Island, Penang Island and in Peninsular Malaysia. It is also known from Sumatra. It was introduced to Sulawesi and the Maluku Islands. Museum records indicate that the Malay civet also occurred on the Indonesian islands of Java, Bawal and Telok Pai, and on the Philippine island Leyte. In 2012, an individual was photographed in Singapore. The Malay civet population in the Philippines may have originated in Borneo and colonized Palawan island naturally. It possibly later dispersed to the rest of