Stray dogs are the ones not microchipped, which live across the streets and other public surfaces unattended, and so represent a serious public-health problem. Lack of human support for the stray dogs causes a range of problems from territorial status to ensuring food. Such conditions force them to activate a self-preservation mechanism and return to natural behavioral patterns. Regarding the fact that several thousands of stray dogs were recorded in observed regions of Bosnia and Herzegovina in the period from 2008 – 2009, it was obvious that such conditions could endanger the health of both humans and domestic animals. The problem in Bosnia and Herzegovina attempted to be solved using various approaches during the period from 1996 – 2009. Some solutions were: using hygiene services of public utility companies in some places, or establishing dog shelters. The third solution for the problem was the employment of hunting associations and their active participation for reducing the number of stray dogs. Minimization of large number of stray dogs required number of measures and activities such as aplicable legal framework, education for dog owners, neutering of dogs, building shelters, euthanasia of ill and agressive dogs and permanent hosting of dogs.

The laboratory rat, as important biomedical model, was often fed with unconventional diet usually made up of products from the bakery industry. Such diet consisted of insufficient caloric and nutritionally unbalanced meals could cause unreliable results in biomedical research. The study investigates the effects of malnutrition on the haematological profile of rats. The study is performed on Wistar male and female rats which were fed for 4 weeks exclusively with bakery products ad libidum. The following hematological parameters were observed in peripheral blood smears: red blood cell count, content of haemoglobin, haematocrit, MCV, MCH, MCHC, white blood cell count, differential blood count, diameter of red blood cells, as well as the presence of atypical forms of red blood cells. Despite there were no statistically significant differences in overall haematological results (p > 0.05, with > 0.05), the significant part of obtained results were below physiological limits (HGB, MCHC and MCH). Other haematological parameters, including white blood corpuscles were kept in physiological limits, except for mild neutrophils in males. Also, the forms of anulocytes and spherocytes were recorded in peripheral blood smears. The results indicated the beginning of normocytic hypochromic anaemia which was caused by unbalanced meals.

Introduction: Sexually transmitted infections represent a public health problem of great importance in most parts of the world. Research goal: The primary aim is determine the sexual activity, attitudes and knowledge of high school students about sexually transmitted diseases. Method: The research conducted is the type of study section. In December, 113 students from first to fourth grade from High School Center Foca were surveyed. In the study used an anonymous questionnaire character. The questionnaire in this research was anonymous. Results: 35.4% of respondents were sexually active. The young men were sexually much more active than girls (χ2 = 30,447; p = 0.001). Most sexually active students said that they had their first sexual intercourse at age 15 (50%%). The boys and girls have diametrically opposed attitudes regarding age in which they find it is the optimal time for their sexual activities (χ2 = 20,252; p = 0.001). Students of the third and fourth grade have a much higher level of knowledge compared to the students of the first and second grade (χ2 = 31,791; p = 0.001). Most students would continue to associate with a person even if that person has one of the sexually transmitted diseases (64.6%). Conclusion: The results of this study show that sexual activity of adolescents surveyed is not a mass phenomenon, but that knowledge of students of first and second grades was insufficient, and that there is a need for education of this target group, considering the importance of preserving reproductive health of adolescents, who are the future of preserving population.