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Small farm operations - dairies
BOROVKOVÁ, Lucie
This thesis presents problems of small dairy farm on the example of farm operations employed in the South Bohemian Region. It will define the goal of the work focused on the evaluation of the current situation in farm processing of milk with regard to the objective of the Common Agricultural Policy after 2013. The strategy aims to increase the efficiency of agricultural production.
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Concentrations of thyroid hormones in the blood plasma of sheep
DŘÍZHALOVÁ, Blanka
The theoretical part of the thesis is dealing with description of the thyroidal hormones thyroxine, triiodthironine and their active (unbound) variants in the blood plasma. Thyroid gland, where the hormones are produced, production of very hormones and their effect on whole organism is described here. The practical part tracks and analyzes mutual relations and dynamics of thyroid hormones of sheep in their plasma depending on upraised uptake of iodine and changing uptake of selenium. The results are processed statistically.
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Evaluate the reproductive performance of the Wallachian sheep
BALOUNOVÁ, Lucie
The aim of this thesis was to evaluate the level of reproductive performance of the Wallachian sheep in the flock of sheep bred by Jan Vejčík. At first the following parameters were evaluated in 457 ewes during the period 2007 - 2011: fertilization, fertility, reproduction intensity, total rearing, infertility, rearing of lambs born and total mortality of lambs. Then, using statistical methods, frequency of litters and effect of age on fertility of ewes were evaluated and the identified parametres were compared with the flocks originating from the Union of sheep and goats of the Czech Republic. Finally, the economy sales for slaughter lambs depending on fertility was assessed. The mean fertility of the flock of sheep reached 171, 77 % and the percentage of fertilization was 92, 54 %. Total breeding flock was 143, 19 %. Seven percent of the sheep was infertile, which is directly influenced by the intensity of reproduction (158,93 %). Mortality of lambs was 10, 03 % and thus survival rate of lambs was 89,97 %. The study shows that the longer the period of existence of a farm is, the higher the fertility of ewes is (almost 179 % in 2011). Also an increasing tendency of the number of sheep twins was recorded during the study (59 twins in 2011). This indicates good welfare of the animals and generally good health of the flock. Ewes reached the highest fertility at the age of 5 to 7 years. The indicators of fertility, reproduction and total intensity of rearing showed significant differences when compared with the flocks originating from the Union of sheep and goats of the Czech Republic. Significantly higher fertility, reproduction and overall intensity was achieved in the monitored flock The difference was not statistically significant (p > 0,05) except for the fertilization parameter. Sales for slaughter lambs per ewe were affected by the share of reactive sheep and total lamb mortality, this effect was, however, only about 20 % of the total dependency. Disregarding the overall mortality of lambs and reactive sheep, it would be true that higher fertility is in direct proportion with sales for slaughter lambs.
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