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
Civet (perfumery) Civet (perfumery) Civet ("Zibeth"; "Zibet"; "Zibetum"), also known as civet musk, is the glandular secretion produced by both sexes of Viverridae species. A number of viverrid species secrete civet oil in their perineal glands, including the African civet ("Civettictis civetta"), large Indian civet ("Viverra zibetha") and small Indian civet ("Viverricula indica"). Most civet is produced in African farms, where African civets are kept in cages for this purpose. African civets typically produce three to four grams of civet per week. In 2000, civet sold for about five hundred dollars per kilogram. Civet is a soft, almost liquid material. It is