Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 17

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

Wyszukiwano:
w słowach kluczowych:  owca uhruska
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 determine the effect of sheep’s genotype and grazing site on their hematological and redox status indicators. The experiment was carried out on sheep of the Świniarka and Uhruska breeds grazed in naturally valuable areas (xerothermic grasslands) and kept in a sheepfold. Several blood indices were determined by ABACUS Junior Vet, including the numbers of leukocytes, thrombocytes and erythrocytes, hemoglobin and procalcitonin concentrations, hematocrit, the mean red cell volume and the average hemoglobin concentration in red blood cells, the percentages of lymphocytes, monocytes and granulocytes, the degree of erythrocyte anisocytosis and the degree of variation in platelet volume. The concentrations of lipid peroxides and malonic dialdehyde, the activity of superoxide dismutase and catalase and total antioxidant potential were determined by spectrophotometric methods. The study showed that Świniarka sheep had a greater antioxidant potential and higher white blood cell counts than Uhrusian sheep. It was found that sheep’s grazing place had a significant influence on the antioxidant status and hematological indicators of their blood. An improvement in antioxidant potential and hematological blood parameters was achieved in sheep grazed in naturally valuable areas, that is, in the Stawska Góra nature reserve and on xerothermic grasslands in Gródek and Kąty, compared to sheep fed in a sheepfold.
The aim of the study was to compare the prevalence and intensity of parasitic invasions between Uhruska sheep (a local breed protected in a genetic resources protection program) and two synthetic sheep lines: BCP and SCP. The sheep were kept in the same flock in a combined indoor-pasture management system with unified feeding and environmental conditions. The observed farm is located in south-east Poland. The study animals were 210 mother ewes of similar age (Uhruska breed – 70 sheep, synthetic prolific-meat BCP line – 70 sheep, SCP synthetic line – 70 sheep). The study material was faeces collected from the rectum of every mother ewe in autumn (November), winter (January), spring (April) and summer (June). On the basis of the obtained results, the following parasites were detected: Eimeria spp. and nematodes from the family Trichostrongylidae, as well as the genera Capillaria and Nematodirus. It was shown that in almost all cases the invasion intensity was similar, while the prevalence of parasitic invasion was significantly lower in local Uhruska breed sheep than in synthetic lines. This could stem from the better adaptation of the animals to the environmental conditions. The results of the observations indicate a need for further studies on the resistance of local breeds to parasitic invasions. The use of resistance breeds may be helpful in effective breeding work aimed at reducing the risk of infection. Such activity could lead to better growth and fewer deaths, which would certainly contribute to an improved profitability of sheep production.
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.