Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 9

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 aim of the study was to investigate the level of IgM and IgG class antibodies, specific to selected pathogens in foals at particular stages during their nursing period. The tests were conducted in a thoroughbred stable. Twelve sera from mares and 12 sera from foals were examined and total protein and gamma globulin fraction levels were estimated as well as the relative level of specific antibodies in IgM and IgG class using the ELISA test and expressed as the value of optical density (OD) against the following strains of bacteria antigens: Staphylococcus sciuri (1), Staphylococcus sciuri (2), Staphylococcus sciuri (3), Staphylococcus xylosus (4), Staphylococcus xylosus (5), Staphylococcus aureus (6), Staphylococcus aureus (7), Streptococcus equi subsp. Zooepidemicus (8), Streptococcus equi subsp. Zooepidemicus (9), Enterobacter aglomerans (10), Rhodococcus equi (11), Salmonella enterica ser Typhimurium (12). Traces of specific Ig R. equi were indicated in the foals sera before suckling whereas the OD value increased to 0.35 in sera following the absorption of colostrum. The profile of specific humoral response against environmental pathogens in nursing foals is dependent not only on antigenic moiety of the pathogen but also on the immunological status of the individual.
Vitamin D-binding protein (DBP) participates in the actin scavenger system, it is a carrier of vitamin D and its derivatives, it manifests the capacity to bind mainly monounsaturated and saturated fatty acids, it binds to the surface of several cells and enhances chemotactic activity of C5a of the complement. The present study was aimed at answering the question whether serum DBP level in mares is related to levels of this protein in colostrum and in serum of its progeny. For this purpose, sera from 77 mares, colostra from 72 mares and sera from 69 Thoroughbred foals were collected. Mother’s age, number of deliveries experienced in the past, month of delivery, feeding of foals with colostra were recorded. Blood of the foals was sampled from the umbilical vein during delivery (0h) and 36-48 h after delivery from the external jugular vein, colostra of the mares were obtained after delivery and blood of the mares was sampled 36-48 h after delivery. Concentration of DBP was estimated by a self-designed ELISA. In the present study, DBP concentrations in newborn’s serum were found independent of their concentrations in mother’s serum, her age and number of parities experienced in the past. Colostrum DBP level was found to be lower than that in the mare’s serum and was not correlated to the concentration of this protein in mare’s serum. There was no effect of colostrum feeding on DBP level in the foal serum. These results indicate that serum DBP concentration in newborn foals depends on factors which act directly on the foal. Because of the lack of correlation between plasma and colostrum concentrations of DBP, it can be assumed that DBP is synthesised in the mammary gland and/or specific transport mechanisms exist in the mammary gland.
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.