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The investigation was carried out on 51 piglets. 11 piglets were used as control animals. The remaining 40 piglets were given (daily, starting from the third day of life) 2 ml of 18-hour Lactobacillus strain culture containing 1 x 108 bacteria isolated from the pig( alimentary tract. Clinical, haematological and biochemical examinations were performed on all animals at the age of 2, 6, 15 and 21 days...
The effect of lysozyme dimer (20 μg/kg) administered i.p. once or four times to mice immunized with sheep red blood cells (SRBC) on the secondary humoral response was studied with respect to the time of exposure to the drug in relation to priming and challenge. It has been found that lysozyme dimer potentiates secondary humoral response to SRBC resulting in an increased number of splenocytes producing...
The following paper deals with the results of a long-lasting cannulation of the porcine pancreas performed using new methods. One method is based on a direct cannulation of the pancreatic duct after its incision. The other (designed by the authors) consists of a cannulation of the pancreas through the minor duodenal papilla. During the 14-day experimental period the efficiency of both methods was...
Levels of Cortisol in blood serum of 50- and 100-day-old rams of Kamieniecka sheep (K) and its crossbreds (F,) with Berrichon du Cher (KxBCH) and Blackhead (K x B) rams before pre-slaughter handling and after slaughter were determined. No relationship between the Cortisol levels and the genotype of the animals were found. However, age-dependent differences in the concentrations of the hormone (P ≤...
The pattern of distribution of nerve fibers containing vasoactive intestinal polypeptide (VIP) and neuropeptide Y (NPY) in the oviduct and uterine horn was compared in ovariectomized (OVX) gilts administered oestradiol or placebo. Compared to controls, VIP-positive nerve fibers were scarce in the muscular layer and submucosa and absent under the luminal epithelium of the oviduct and uterine horn by...
The efficacy of zinc application in the treatment and prevention of diarrhoea in the weaning period of piglets has been demonstrated. However, beside this positive effect some authors suggested the possibility of harmful effects of zinc oxide supplementation on the environment and public health. The aims of the study were to evaluate, in experimental and field conditions, the influence of different...
The investigation aimed at preparing an ELISA kit for examination of bovine sera for brucellosis and evaluating the diagnostic properties of the test. Lipopolysaccharide extract (LPS) was used as the antigen for microplate coating, antibodies against IgG of bovine sera with horseradish peroxidase were used as the conjugate and ABTS with H202 as the substrate. A weak-positive serum prepared from the...
The study was carried out on an Anglo-Arab horse stud "O" at which 186 horses were kept including 67 brood-mares and 8 stallions. During tne 1991 breeding season the semen from the four stallions was used for insemination. At the begining of April 1991, insemination with semen from the stallion ARC, who was brought to the stud "O" a month earlier, was carried out. About seven days...
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