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Vztah hladiny imunoglobulinů v krvi telat k jejich pozdější mléčné užitkovosti a zdravotnímu stavu
 Drozdová, Michaela
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.
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Vliv vybraných parametrů chovatelského prostředí na množství imunoglobulinů v kravském mlezivu
 Drozdová, Michaela
The aim of the work Influence of selected factors breeding environment for the amount of immunoglobulins in cow was to evaluate the effect of the various factors on the colostrum quality, particularly on the amount of immunoglobulins present in the colostrum. Data collection for the evaluation was performed during the whole year on the farm in Šumvald, which is the part of the stock company Úsovsko, with its seat in Klopina. The number of the 539 cows (including heifers), of the Holstein breed in the different lactations were involved into the observation. The density of the each evaluated sample of the colostrum was higher than 1050 g/l. During the evaluation of my observations I have realised, that the most important for the colostrum quality was the influence of the annual period and the rank of the lactation, rather less important was the influence of the numerous group of the cows, from which was the colostrum obtained and the difficulty of the birth. The time elapsed between the birth and the first milking and the daily period of the birth had the lowest importance.
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See also: similar author names
1 DROZDOVÁ, Martina
8 Drozdová, Miroslava
1 Drozdová, Monika
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