ISRAEL JOURNAL OF VETERINARY MEDICINE Volume 56 - No. 4 2001 Table of contents DE-NOVOINFECTION OF A LARGE ACCREDITED BLVFREE DAIRY HERD. S. Garazi, G. Hoida, Z. Trainin, H. UngarWaron and J. Brenner CHANGES IN SOME BIOCHEMICAL PARAMETERS AND ORGANS OF BROILERS EXPOSED TO CADMIUM AND EFFECT OF ZINC ON CADIUM INDUCED ALTERATIONS. F. Uyanik, M. Eren, A. Atasever, G. Tunחoku and A. H. Kolsiz NUTRITION RELATED MICROGNATHIA IN OSTRICHES. B. Perelman, D. Fucks, D. Heller and M. Schonfeld Plain or Burchell's Zebra Case report: ANGULAR LIMB DEFORMITY IN A GIRAFFE CALF. Courtesy of Dr. G. A. Simon COVER STORY: The zebra is the African version of the horse. Male wt 250 kg, ht 127-140 cm; female kg, ht slightly shorter than male. There is no gender difference in their color; back white to buff color; striping varies geographically and individually. Juvenile coat is long DISTRIBUTION OF brown stripes. OREXIN-A AND OREXIN-BU. Bargai and M. Levinson CONTAINING NEURONES AND FIBRES IN THE RAT BRAIN AND SPINAL CORD. M. Vazl• THE EFFECT OF SEASON ON THE BLOOD PROFILE OF THE AFRICAN GIANT RAT (Cricetomys gambianus, Waterhouse). Habitat: From southeastern Sudan to South Africa and west to Angola, in Somali-Masai Arid Zone, Southern Savanna, and South West Arid Zone. The zebra is one of the most numerous and successful large herbivores, adapted to a broad range of grassland habitats. Zebras often intermingle with other animals, most commonly the wilderbeest but also with topi and hartebeest. The zebra is active mostly in daylight, spending nights preferably on short pasture re safe from ambush. Zebras graze individually an hour or so at a time at night but mov very little. Resting zebras often steep soundly, but at least one herd member remains s and alert. Mass movements between pastures and sleeping grounds, and to water at midd also peaks of social activity. Social system: Harem masters have exclusive mating rights with 2 to 6 mares. Harems F. O. Olayemi, O. A. Oke, J. O. Oyewale stable that mares remain associated for life; their foals gain added protection from the stallion's readiness to defend his wives and offspring against all threats to their surv and A. O. Orgunsanmi his reproductive success. Home ranges can be as small as 30 km square in the best hab over 600 km square in migratory populations. Harem ownership is about as safe as te EFFECT OF SUCCESSIVE ownership: respected as long as the family stallion is fit enough to assert his rights. Colt EJACULATION ON their families on their own initiative usually between 2 and 3 years to join a bachelo THE there to remain until mature and ready to start a harem at 5 years. Bachelor herds inclu SPERMIOGRAM 15 males, are usually led by a young adult, and are quite stable, with a rank order based OF WEST AFRICAN DWARF on age. GOATS. Reproduction: Foals born in most months but a definite annual birth/mating peak earl M. O. Oyeyemi, M. rains (Dec.-Jan. in East Africa). Mares in good condition conceive during the followin O. Akusu and O. E. heat"; others reproduce at 2-year intervals. First foals at 3 to 3.5 years. Gestation peri Ola-Davies to 13 months. A mare labors lying on her side, while the herd remains nearby and the WHAT IS YOUR stands watch. Foals weigh approximately 31-33 kg, are able to stand within 15 minut DIAGNOSIS suckle in an hour. The mother keeps all other zebras away for several days, but once the Presented by: A. imprinted on her, she allows other herd members to contact it; its sibling can establis Steinmann and O. ties through mutual social grooming. However, the place closest to its mother is taken Levy newborn. BOOK REVIEWS: F. C. Stades, M. Wyman, M. H. Boevי and W. Neumann OPHTHALMOLOGY FOR THE VETERINARY PRACTITIONER. J. P. Morgan, J. Duval and V. Samii RADIOGRAPHIC TECHNIQUES THE DOG