Laboratory blood tests are not only an important element of the assessment of the general condition of animals, but they are also important for the early diagnosis of many diseases. In modern buiatrics laboratory tests are most frequently limited to the analysis of metabolic profiles, using selected biochemical tests. This reductionist approach results from economic reasons and ignores the possibility of using haematological tests, often limiting the possibility of a certain diagnosis. Haematology (Greek αιµα [ema] -blood) concerns the issues related to blood and the haematopoietic system, which is the first to respond to any disruptions in intrabody homeostasis. These changes guide the veterinarian in the search for a diagnosis and are indispensable in monitoring the effectiveness of treatment. Haematology can also be useful in managing a herd of cattle. In this article, the most recent data regarding the use of blood screening in livestock and the prophylaxis and treatment of dairy cattle are presented. The article presents the possibilities of using haematology in diagnostics, therapy and in the raising of dairy cattle. The most common causes of changes in haematological parameters in cattle are also discussed.

The study results allow a better understanding of the pathogenesis of canine babesiosis. However, in order to fully determine the extent and the nature of the damage to the kidneys of the infected dogs, it is advisable to conduct additional histopathological examinations of these organs.

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Cereals are often contaminated with fumonisins, which are the toxic byproducts of mold. The aim of the study was to determine the effect of maternal exposure to fumonisins on the development and the liver function of the offspring at weaning. Two doses of fumonisins (60 and 90 mg/kg b.w.) were tested. The changes in the basal blood morphology, the biochemical parameters, the absolute and relative weights of the vital organs, and the changes in the cardiac and biceps brachii muscle histology were studied. The liver damage was assessed by evaluating the liver morphology and the common clinical liver panel. Maternal fumonisin intoxication caused a decrease in the body weight at birth and an increase in the heart, liver, kidney, lungs, ovaries, and testes weights. The cytokines and hormones, as well as the red blood cell counts and hemoglobin levels, were elevated in a dose-dependent manner following the exposure to fumonisins. Maternal exposure caused degenerative morphological and structural changes in the liver, as well as inflammation in the striated muscles, such as the heart and biceps brachii, and disproportionate development of the rat offspring in a dose-dependent manner. Moreover, FB exposure resulted in the disproportional development of the rat offspring in a dose-dependent manner, which was probably caused by the bodily hormonal dysregulation. Prenatal fumonisin exposure can be a pathological precursor for serious diseases, such as obesity and diabetes, later in life.

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