In order to analyze the relation of the level of immunoglobulins in calf blood to their later milk performace and health status, the necessary data from 495 pieces of holstein breeds were collected in 2014-2017. On the basis of the analyzes performed, it can be stated that the level of immunoglobulins in the calf blood had no conclusive effect on their later production of milk, fat and protein. In terms of health, higher blood levels of immunoglobulins were associated with a significantly lower incidence of metritis and lower incidence of mastitis (at the limit of evidence), but no significant effect on ruminant disorders. Immunoglobulin levels in calf blood were proven to be affected by the difficulty of delivery, the quality of the colostrum during the first feeding, and volume of second feeding. At the limit of proof was the influence of season and the quality of the colostrum on the second feeding. Inconclusive effects were reported by daily birth time, daily time of feeding and volume of first feeding.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:426766 |
| Date | January 2018 |
| Creators | Drozdová, Michaela |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
Page generated in 0.002 seconds