The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The goal of this study was the assessment of the influence on both insulin and growth hormone levels in lambs blood of blood meal and Wroclaw product - dry brown livex (modified by whey). Experiments were carried out on 30 young Polish "wielkopolska" lowland - sheep - wool type, aged 3-4 months. Livex and blood meal constituted 2% of forage. Blood samples for radioimmunologic examinations...
Four cows were treated on day 260 of pregnancy with 300 mg prednisolone succinate i.m., and four other cows with saline solution. Blood samples were taken 4 times daily during a period of 5 days. The concentrations of cortisol progesterone and estrone sulphate in plasma were determined using radioimmunoassay. After V administration of prednisolone the level of Cortisol was depressed for 3 days and...
Ten cows with and 5 cows without puerperal endometritis were treated with 20 μg GnRH analogue, buserelin, intramuscularly. Blood samples were taken every 20 min for 8h before and for 8h after injection of GnRH. All cows responded to GnRH with significant increase of LH 20 min after treatment. The LH peak was significantly lower in cows with puerperal endometritis than that in clinically normal cows...
The investigation aims at determining objective criteria for sternum sex dimorphism expression in the European bison. On the basis of standard measurements of this bone a discriminative function has been constructed which could be useful for that purpose.
The subject of this wprk was the investigation of luteinizing hormone, progesterone, testosterone and total estrogens concentration in the peripheral plasma of 56 gilts with experimentally-induced hypo- and hyperthyroidism and with ovarian cystic degeneration. The blood samples were collected from the cannulated jugular vein at 19-23 days after last natural estrus, 5-10 times daily. The experiments...
Rats, after cannulation of the common bile duct, duodenum and vena cava posterior were infused i.d. with sodium taurocholate to partially maintain the enterohepatic circulation of bile acids. Four-h i.V. infusions of glucagon, Boots secretin, Boots CCK and OP-CCK were continued together with bile acid administration. The bile was collected throughout the experiment and the bile volume, bile acid,...
To develop a new animal model for gallbladder ultrasonography 16 adult sheep of both sexes were used. Ultrasonographic examinations were performed in fed or fasted sheep every 30 min for 3-5 h. Every gallbladder was visualized, then its maximal length, height and width were measured. Afterwards, the gallbladder volume was calculated with three methods. The maximal and minimal values of gallbladder...
The paper presents the statistical calculations of correlation coefficients (r) between the concentrations of various hormones in peripheral and ovarian venous plasma of hypo- and hyperthyroid, experimental cyst-bearing gilts. The experiment was carried out on 70 gilts randomly divided into the following six groups (10-16 heads in each): control, hypo- and hyperthyroid gilts (oral application of methylthiouracyl...
Experiments were carried out on seven anestrus ewes. The animals were implanted with bipolar electrodes in the horns and corpus uteri. The electrical activity was registered by Reega Duplex electroencephalograph. The experiments were carried out on non-sensitized ewes and ewes sensitized by stilboestrol. The sheep were first fitted with an external jugular vein catheter and histamine (Histaminům hydrochloricum...
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...
Selenium level, and Ihe activity of GSH-Px, AST, CK, LDH and its isoenzymes were estimated in 30 lambs suspected of having the subclinical form of nutritional muscular dystrophy (NMD) and in 30 healthy lambs. A significant Se deficiency, a reduction in the activity of peroxidase glutathione, an increase in creatine kinase, aspartate aminotransferase and lactate dehydrogenase activities were found...
The present study reports the investigation on the influence of reduced glutathione (GSH) on bile secretion in 4 canulated sheep during constant intraduodenal infusion of bile alone, bile with sodium taurocholate (TCHNa) or bile with sodium deoxycholate (DCHNa). Infusions of bile alone and bile with TCHNa or DCHNa brought about an increase in the bile salts secretion from 0.05 ± 0.01 (μM/min/kg to...
In the present study, the effect of stimulation of pregnant sows with isoprinozine or levamisole on parameters of unspecific immunity in piglets during first weeks of their life were examined. The investigations were carried out on three pregnant sows and their progeny. All the sows were clinically healthy and they were not vaccinated before the experiment. The first animal was given 10% solution...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.