The International Zoo Yearbook is an indispensable publication for everyone concerned with the care, conservation, biology and behaviour of wild animals. Its papers, notes, surveys and detailed reference lists represent the most up-to-date results of observations and research conducted in zoos and laboratories around the world and are the source of much data unobtainable elsewhere. ln its cover of nearly 1000 zoos, unequalled by any other medium, it enables zoo people, zoologists, conservationists, veterinarians and anyone interested in wild animals to keep abreast of new developments and studies in the zoo field, and equips them with an invaluable tool of permanent reference.
Section 1 – a symposium on the Principles of Zoo Animal Feeding. The 13 contributions outlining the latest advances in nutritional research include specialist studies of waterfowl, insectivorous birds, edentates, dolphins and ungulates, with an emphasis on the view that it is the diverse feeding behaviour of species, as much as their biochemistry, that must govern the choice of feedstuffs offered to them. The ingredients and processes involved in the manufacture of prepared compound diets, a comparatively recent development in wild animal management, are also discussed in detail, while the section concludes with two papers on the raising of invertebrates and the hydroponic culture of grasses as food reserves within the zoo.
Section 2 examines current developments in the broadly defined fields of breeding, husbandry, hand-rearing, building and exhibition techniques, conservation, and in place of the usual education section this year contains a discussion of the often disputed role of domestic animals in zoos. The 63 papers describe the breeding and management of species as disparate as kiwis, toucans, marbled cats, gila monsters, anteaters and Gentoo penguins. Artificial insemination of elephants, cytological techniques in sexing birds, an unorthodox approach to the management of South American primates, a survey of moat dimensions and a review of the captive history of the Arabian oryx are just a small sample of the subjects covered.
Section 3, the 190-page reference section, contains a directory of nearly 1000 zoos, wildlife parks and aquaria of the world; a list of vertebrate species bred in captivity during 1974, where each was bred and which were offspring of captive-born parents; the latest census of rare animals in captivity; and a report on the status of the various rare animal studbooks. A classified survey of recently completed zoo buildings and exhibits is a new feature. The section concludes with a cumulative index to Volumes 12-16 and an author index to Volumes 1-16.
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