Preface and pregnancy before the birth of sheep and cattle will be born in the determination of the genders of sheep and cattle will have some benefits in breeding strategy, dairy cattle breeding and strategy to help the establishment of the connect planning of the enterprises. Meat quality is important in fattening enterprises. Therefore it is desired to have female animals which are going to be born in fattening enterprises and male milk production. Therefore the determination of the sexes of chickens that will be born in pregnant sheep and cattle bring some benefits in aquaculture. Studies to determine prenatal total sex in the sun are mode by applying different methods on previous pregnancy feeding spermatozoa, embryos and fetuses. In this review, detailed information about the effect of previous pregnancy feeding on baby gender will be given in sheep and cattle which are not currently used in our country.

Coronavirus which is caused by SARS-CoV-2 (Severe acute respiratory syndrome coronavirus 2) has been declared as a pandemic by the World Health Organization (WHO) on 11 March 2020. After the declaration, SARS-CoV-2 took its place in the scientific area. It is a striking fact about COVID-19 pandemic that mortality, morbidity, and severity of the infection differ from region to region and even from country to country. The reason for this case is that interaction between COVID-19 and human cell receptors, inflammation, complement, and coagulation responses in humans differs as a consequence of ethnicity and genetic diversity. In this review, the effects of gene variations dependent on ethnicity on the clinical course of SARS-CoV-2 is aimed to analyze.

Veterinarians are individuals who carry out research and breeding activities in the field of animal husbandry, provide healthy breeding of domestic animals, protect animal food hygiene, increase production and productivity, diagnose and treat diseases in animals, and contribute to the development of the country by carrying out preventive medicine practices against epidemic diseases. Veterinarians working in animal hospitals, clinics, stables, farms, animal shelters, feed factories, pharmaceutical industry, meat processing facilities, zoos, and similar workplaces may be exposed to infection. Infection occurs as a result of animal or human contact and veterinarians are especially vulnerable to temporary or permanent zoonosis diseases, otherwise known as veterinary diseases. This review aims to provide information about zoonotic occupational diseases commonly encountered in veterinary medicine in our country.