Abstract The main objective was to study the milk productivity of lactating cows depending on level total accumulation toxic metals in blood serum. experimental part work carried out clinically healthy Holstein (n=45; lactation stage - 20-40 days after calving) bred a single farm. elemental composition serum studied for 4 chemical elements (Al, Pb, Sn, Sr) by ICP AES and MS. indicators were eva...

Relevance. The breeding stock and young cattle in the conditions of industrial technology animal husbandry experience an increased antigenic load, which leads to disturbances immune status development inflammatory processes manifested by endometritis mastitis, diarrheal respiratory syndromes. It was relevant conduct a comprehensive assessment immunological reactivity animal’s body according sta...

Bacterial and Fungal Organisms in the Vagina of Normal Cows and Cows with Vaginitis. (December 2003) James Ross Husted, B.S. Texas A&M University Chair of Advisory Committee: Dr. R. Bruce Simpson Previous studies on infections of the reproductive tract in various animal species have focused on uterine and cervical infections. This study defined the bacterial flora from the vaginal fornix of 110...

The aim of this study was to assess the feasibility of a new technique for transcutaneous ultrasonographic imaging coupled with transrectal manoeuvering for the examination of the left kidney using 10 clinically healthy Jersey/Red Sindhi crossbred cows. The areas extending caudally from the tuber-coxae, cranially up to the 11th intercostal space, dorsally from the lumbar transverse processes, a...

The aim of this study was to test a model for mastitis detection using a logic that allows examination of time-related changes and a progressive scale of mastitis state (i.e., not using specificity/sensitivity). The model produces a mastitis risk (MR) for individual cows on a scale from 0 (completely healthy) to 1 (full-blown mastitis). The main model input was lactate dehydrogenase (LDH; mumol...

Cytokines, eicosanoids, and lactoferrin are involved in the mammary gland's immune response to invading microorganisms. The goal of this work was to investigate the synthesis of these immunologically important factors in somatic milk cells, blood cells, and mammary tissue of cows with different somatic cell count levels, i.e., different immunological activity. On the level of mRNA expression, t...

Recent studies show that immunoglobulins A, G, and M contribute significantly to the maintenance of udder health. Unfortunately, the concentration of immunoglobulins in cow milk during the middle period of lactation is low therefore the question of how to stimulate and maintain a sufficient level and spectrum of antibodies in the udder is topical. The aim of the present study was to evaluate th...

In order to characterize the expression of genes associated with immune response mechanisms to mastitis, we quantified the relative expression of the IL-2, IL-4, IL-6, IL-8, IL-10, IFN-γ and TNF- α genes in milk cells of healthy cows and cows with clinical mastitis. Total RNA was extracted from milk cells of six Black and White Holstein (BW) cows and six Gyr cows, including three animals with a...

Endometritis is a prevalent uterine infection in postpartum dairy cows that causes some alterations in the endometrium. So, the aim of this study was to determine the comparative cellular and histological characteristics of uterus, especially neutrophils index and cell morphological alterations, in healthy and endometritic Holstein cows. Thirty non-pregnant cows were used. Based on uterine disc...

In four healthy cows an elevation of ketone bodies was induced by reduction of feed intake. Two cows became clearly ketotic while the other two cows showed only slight increases in ketone body concentrations in serum and milk. Acetone concentrations in exhaled breath were measured by gas chromatography combined with mass spectrometry. These values were correlated with concentrations of serum be...