Chemical analyses of kundi show that, apart from a high level of carcinogenic benzo(a)pyrene (10.566.9 ng g-'), eight other polycyclic aromatic hydrocarbons (PAH) are present at various concentrations. The high leveki of PAH in kundi are due to the high glow and smoking temperatures averaging 926°C and 191*5"C, respectively. Column chromatography was used for PAH extraction with propylene carbonate as the eluting chemical; thin layer chromatography (TLC) on acetylated cellulose layer plates was used for separation, and the determination was performed using spectrophotofluorimetry. The public health implications of PAH as one of the possible carcinogenic factors in the high incidence of primary liver and stomach cancer reported in Nigeria are highlighted.

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A survey of the abattoirs in 10 selected towne in Nigeria showed that about 41.9 per cent of whole carcasses condemned between 1975 and 1977 were due to tuberculosis and 22.2 per cent to beef cysticercosis. Seventy per cent of organ condemnations, mainly of livers, were due to fascioliasis. Other major causes of organ condemnations were hydatid cysts, tuberculosis and pneumonia of various causes. An estimated 500 tonnes of meat valued at about 1.25 million Naira (US $1.8 million) are condemned each year throughout Nigeria. The use of abattoirs as monitoring stations in national animal disease eradication programmes is highlighted.

Record books in form of one thousand, four hundred and seventy eight (1478) registers, case notes and vaccination certificates of registered dogs were assessed for rabies vaccination and its booster coverage. The dogs which consisted of 850 males and 628 females were presented at the Small Animal and Preventive Veterinary Medicine Clinics, Veterinary Teaching Hospital, University of Ibadan between January 1993 and December 2002. Among the registered dogs, 155 (10.5%) with annual mean of 9.1 + 9.1% were vaccinated. Although more females (83 or 13.2%) were vaccinated than male dogs (72 or 8.5%), the difference was not significant (p>0.05). Most v accinated dogs (121 or 78.1%), were at the initial vaccination age of 3 months and had the highest vaccination coverage (51 dogs (males and females) or 44.3%) while 53 (males and females) dogs (43.8%) were adequately vaccinated. Also, 12 (35.3%) among 34 dogs with booster vaccination were adequately protected against rabies. The current study showed increase in registration of dogs and the cost of vaccination in the clinics. However declined vaccination and booster coverages were observed compared to t he previous 5 -year observations of 36.5% vaccination and 59.5% booster coverages. These observations were far below the recommendation of WHO (1989WHO ( , 1990WHO ( , 2001) to prevent urban rabies epizootics and epidemics in the area. Since rabies is zoonotic, the study indicated increase danger of contracting rabies by veterinarians, their assistants, dog owners, their family members and the general public.

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