Tierärztl. Hochsch., Diss., 2003--Hannover.

Universiẗat, Diss., 2006--Giessen.

Zugl.: Giessen, Univ., Diss., 2006

No description available.

Tierärztl. Hochsch., Diss., 2004--Hannover.

Tierärztliche Hochsch., Diss., 2005--Hannover.

The aim of the thesis was to compare the effect of feeding calves with different doses of milk on their health condition, weight and weight increment, consistency of faeces, blood parameters and the effect of plant nutrition. The experiment was carried out with 2 groups of calves (n = 30), the first group (experimental) was fed with 6 liters of milk per day and the second group (control) with 10 liters of milk per day. Calves were fed twice a day and had drinking water and starter all the time. Calves were fed with colostrum within 2 hours of delivery and were on colostrum nutrition for 3 days, the fourth day they were included in the experiment, they were weighed and converted to the milk feed mixture. The second weighing was done at the end of the experiment at the age of 38 days. The third weighing was done at the age of 155 days, when the calves were on plant nutrition. The average birth weight of all calves was 33,5 kg. The final weight was statistically significantly lower in the experimental group, the average final weight was 57.8 kg and in the control group 65.9 kg. The mean total weight increase in the experimental group was 26.4 kg and in the control group 30.3 kg. The intake of starter was statistically significantly higher in the experimental group. The experimental group had a better evaluation of faeces consistency. On the second blood collection, the experimental group had a blood ?-glutamyltransferase level over the reference range, and it was 0,62 µkat/l and the difference between the experimental and control group was statistically demonstrated. Statistically significant was the higher albumin level in the control group at the second blood collection. The results of the experiment clearly do not show a better or worse effect of feeding different doses of milk during the milk diet, higher doses of milk provided higher weight increase during the milk diet, which means higher economic costs.

The aim of the thesis was to evaluate the influence of selected factors on the level of passive immunization of calves (expressed in total protein, g/l in blood serum) in selected beef cattle breeding. In the monitored period 2014-2016, a total of 205 samples of calf serum were evaluated. The selected factors were: the length of dry period and parity, colostrum quality, the time of first intake of colostrum after birth, the weight and sex of the calf. An adequate level of passive immunity was found in 90.2% of calves. This result was also reflected in low calf mortality rates in monitored years: 1.16% (2014), 1.15% (2015) and 1.23% (2016). At the level of passive immunization, the time of the first colostrum intake (P < 0,001), parity (P = 0,0002), colostrum quality (P = 0,0061) and the length of dry period (P = 0,0008) were the most important factors. The other evaluated factors (sex and birth weight of calves) were not statistically significant. Colostrum period management is essential for the rearing of healthy calves and profitability of breeding.

The base for rearing healthy calves is a high level of passive immunity, which protects calves in a challenging period after birth. In examined herd of the Holstein cows was evaluated the influence of selected factors on the level of passive immunization in 57 calves, expressed as total protein content in calf blood serum. The selected factors were: the quality of colostrum, the time of first intake of colostrum after birth, the weight and sex of calves. The proper level of passive immunization was found only in 33 (57, 9%) calves in the studied breed. Insufficient immunization resulted in a high mortality which reached rate of 10% in 2017. The level of the passive immunization was most affected by the quality of colostrum (P < 0, 001) and the time of first drinking after birth (P < 0, 0230). The other observed factors (calf weight and gender) were not statistically significant. Adequate care for the youngest age category is crucial and influences the profitability of the breed.

This thesis deals with efficiency of colostrum contained in cosmetics. The aim of study was to determine whether the colostrum contained in cosmetic preparations have any influence on the state of human skin. The theoretical part is a literary review and it deals with defining the basic concepts and phenomena, especially the colostrum, its composition and properties. There is also discussed the raw materials used for real samples preparation and efficiency evaluated on these samples. There are also described the methods used to evaluate cosmetic products. The practical part is focused on evaluating the influence of hydratation of prepared cosmetic products. The skin hydratation and transepidermal water loss was measured by MPA 5. Consumer tests are attached to this part. Chemical stability of these cosmetics is assessed in a special chapter.