Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 20

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
The study was carried out on 217 cows affected with acute or chronic udder inflammations. The subsequent procedures were followed: 1 - Nafpenzal MC (three times every 24 hours) - a control group consisting of 44 cows; 2 - Lydium-KLP: 0.02 mg/kg of body weight once and antibiotics 3 times intramuscular every 24 hours in 20 cows; 3-a single injection of Lydium KLP (0.01 mg/kg b.w. intravenously) and Mastisan PN intramammary (58 - cows); 4-a single intramammary administration of Mastisan PN after 4-7 days from unsuccessful Lydium treatment; 5 - Mastisan PN used in 67 control cows (94 quarters). The following percentage of recoveries was observed: group 1-78 per cent of quarters of 79.5 per cent of cows; group 2 - 87.9 per cent of the quarters in 90 per cent of the cows; group 3 - 92.8 per cent of the quarters in 94.8 per cent of the cows; 4 - 89.7 per cent of the quarters in 92.9 per cent of the cows; 5 - 84.4 per cent of the quarters in 83.6 per cent of the cows. At day 5 after the antibiotic administration, a lack of clinical signs in milk (34.0 per cent) and in 30.8 per cent of the quarters was observed. 59.3 per cent of recoveries were recorded at that time after the combined treatment. The studies indicated that Lydium KLP at a dose of 0.01 mg/kg increased the efficacy of intramammary antibiotic treatment in cows.
The hygienic parameters of bulk tank milk were assessed in 10 farms (131 cows) before treatment with Mastisan PN, antibiotics and Lydium KLP - during the treatment and after completion of the treatment. Inflammation of the udders was found in 48 per cent of the cows; advanced forms of the disease were noticed in 10.3 per cent of the quarters and subclinical forms were found in 17.2 per cent of the quarters. All the farms had some problems with milk quality. The worst parameters of milk quality were observed before and during the treatment. The restoration to health, culling chronically infected cows, the control of milking hygiene and advisory service improved the milk quality. The average somatic cell count decreased to 81.8 per cent, the total count of bacteria was reduced to 71.0 per cent and total count of Staphylococci spp. to 52 per cent; the total count of coagulase positive strains of Staphylococcus spp. was diminished to 93 per cent, the amount of aesculin positive streptococci was lowered to 42.6 per cent and aesculin negative strains of Streptococcus spp. to 55.5 per cent. The presence of bacteria on milk for a long period after the treatment indicated a sloppy system of milk collection.
Effect of ketosis on the number and activity of leukocytes was investigated in 8 cows. The high level of ketone bodies in the blood was associated with a significant decrease in the total white blood cell count, neutrophils, and eosinophils, and insignificant decrease in lymphocytes. The number of monocytes was not changed. At the stage of ketosis, the neutrophil ability to NBT reduction was significantly lower, while the phagocytic index was slightly higher compared with the values during the time when the disease was not found.
Experiments were carried out on 137 cows. Before the drying period the udders were examined twice clinically, as well as their milk was tested bacteriologically and for its somatic cell level (CMT). Mastisan PN in the MC form (which is destined for mastitis treatment during lactation) was introduced into all quarters of the udders of 89 cows. Mastisan PN-DC containing a half dose of the Mastisan PN-MC was administered in 48 cows. Control examinations were performed twice, i.e. in the first and second week after calving. It was found that both drugs were highly effective (over 98 per cent). The prophylactic efficacy was 91 and 90.3 per cent respectively. Satisfactory therapeutic effects were observed in subclinical and clinical mastitis due to streptococci and staphylococci. The studies showed that Mastisan - a new drug elaborated at the National Veterinary Research Institute - was useful in the therapy of mastitis.
The studies were done in 9 farms on 187 cows affected with a subclinical bacterial mastitis (260 quarters), sub- clinical aseptic mastitis (73 quarters) and latent infections (23 quarters). In the treatment, Lydium-KLP was applied intravenously once at a dose of 0.015-0.020 mg of lysozyme dimmer/kg of body weight. Control examinations carried out on 7, 14, 21 and 28 days after the treatment showed a high effectiveness of lysozyme dimmer in the treatment of subclinical mastitis. From 38.9% to 76.3% infected quarters (average 64.5 %) werer cured in particular farms. Effectiveness of the therapy used was high in cases when one quarter of an udder was affected and a somatic cell count did not exceed 3 million/ml of milk. The cure rate was the following: 50% for quarters infected with S. aureus, 57.9% for quarters infected with S. agalactiae and 88.1% for quarters infected with other microorganisms.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.