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    Hematobiochemical profiles, mineral concentrations and oxidative stress indicators in beef cattle with pica
    (Taylor & Francis Ltd, 2019) Onmaz, Ali Cesur; Gunes, Vehbi; Cinar, Miyase; Citil, Mehmet; Keles, Ihsan
    Pica, or "depraved appetite", is defined as ingestion of non-nutritive substances. Many factors influencing pica in animals have been identified , but the etiology is controversial. This study was conducted to evaluate haematological and biochemical parameters, trace element concentrations, the total antioxidant status (TAS), total oxidative status (TOS) and oxidative stress index (OSI) in beef cattle with and without pica. Ten beef cattle with pica (group I) and another ten healthy beef cattle (Group II) were used in the study. Serum TAS and TOS were measured by a colorimetric method. In group I, haemoglobin value and serum iron, copper and selenium concentrations were significantly lower than those of group II (p < .05). Cortisol level and the other biochemical parameters were not statistically different between the groups (p > .05). Compared to the healthy controls mean TAS values were significantly decreased in the group I (p < .05), whereas the TOS and OSI values did not differ statistically between the two groups (p > .05). Parasitological analysis revealed that Trichostrongylidae spp eggs were more common in group I. In conclusion, serum iron, copper and selenium deficiency with decreased antioxidant capacity may cause the symptoms of pica in beef cattle. Prophylactic use of trace mineral supplement containing iron, copper, selenium and antioxidants in beef cattle may be beneficial in preventing deviated appetite and in strengthening the antioxidant defence system.
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    The levels of trace elements and selected vitamins in goats with chronic fluorosis
    (Scientific Technical Research Council Turkey-Tubitak, 2013) Altug, Nuri; Arslan, Sezai; Yuksek, Nazmi; Keles, Ihsan; Yoruk, Ibrahim Hakki; Basbugan, Yildiray; Aytekin, Ismail
    This study was conducted to investigate the effects of chronic fluorosis on trace elements and vitamin levels in goats. Thirty-three goats exhibiting clinical signs of chronic fluorosis and 10 healthy goats from the same region were used. Animals with chronic fluorosis were divided into 2 groups according to their age as 1-3 years old and 4-6 years old. Blood samples were collected from all goats. Fluoride concentrations were determined with an ionometer. Na, K, and Cl levels were measured with ion-selective equipment and serum mineral substance levels were obtained by atomic absorption spectrophotometer. Ca, Mg, and P levels were determined by biochemistry analyzer. Serum vitamin concentrations were determined by liquid chromatography. The levels of serum copper, iron, manganese, and nickel decreased in goats with chronic fluorosis, whereas other trace elements did not change. Among vitamins, levels of serum a-tocopherol were increased, whereas retinol and vitamin D3 levels were not changed significantly differently between the fluorosis and control groups. In evaluation of goats with fluorosis according to age group, copper levels in the age group of 1-3 years and iron levels in the age group of 4-6 years were found to be lower than in the other age groups. Other minerals and all vitamin parameters were not different according to age. The results of the present study clearly showed that serum copper, iron, manganese, and nickel levels were reduced in goats with chronic fluorosis, and so goats with fluorosis should receive support in terms of these concerned trace elements.