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Vyhodnocení reprodukce v chovu ovcí clun forest
KLEČÁKOVÁ, Martina
The aim of the diploma thesis was to evaluate reproduction indicators (percentage of pregnancy, fertility, intensity, total rearing, reactivity, rearing of lambs born and total lamb mortality), their comparison over the years and the average in the Czech Republic. The influence of the age of the mother on fertility and the proportion of sheep according to the frequency of litters was also evaluated. Monitoring was carried out in breeding sheep clun forest (at 30 ewes) at Studnice farm from 2015 - 2018. In the monitored reproduction indicators, there was a statistically significant effect (P 0,01) only in the fertility of the herd in question for the period 2015 - 2018. This was caused by higher fertility differences in the first two years on average by 10% between selected breeding and average in the Czech Republic . For the past two years, fertility was on average 25% lower than the national average. When assessing the effect of maternal age on fertility, the highest fertility rates were in three-year-old (174%) and four-year-old sheep (168%). The effect on the highest fertility rates was the highest number of lambs born (about 2 lambs per sheep). Since the third year of age fertility has fallen until the fifth year. Then there was a slight increase (the number of born lambs in the sheep (1.5 lambs) increased) and the lowest fertility (133%) was found in seven-year-old and older sheep, when the number of lambs was also decreasing. Based on the above data on the effect of age on fertility, a statistically highly significant effect (P 0,01) was observed in the observed breeding for the years 2015 - 2018.
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Analýza masné užitkovosti u plemene Český strakáč
KLEČÁKOVÁ, Martina
The aim of the bachelor thesis was to compare the meat performance in rabbits of the Czech piebald breed kept in different types of housing. One group of rabbits was kept outdoors in the huts with a range and the other in a classic covered hutch. A total of 38 rabbits were monitored, 19 of them outdoors and 19 in the hutch. There was no difference in the length of fattening between the rabbits in the hutch and the outdoor (141.47 or 142.32 days) and in the live weight before slaughter (2.62 kg or 2.61 kg). On the other hand, the difference was very significant in other indicators, e.g. between the weight of the carcass, where the rabbits outside had lower weight (1.70 kg) than rabbits in the huts (1.78 kg). The results were more favourable for rabbits reared in hutch. When monitoring the meat performance indicators by sex, a very significant difference (P 0.001) was found only for the length of fattening. The fattening time for males was shorter (140.05 days) than for females (144.06 days). It was also insignificant for live weight. Other indicators were more favourable for males.
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