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Analysis of reproduction roadsings sows
KORČÁKOVÁ, Jana
The aim of the bachelor thesis was to analyse the reproduction qualities of sows, that means the fertility and the lactation performance and the influences that effect them. This work also describes the maternal pig breeds where are monitored the reproduction qualities. The breed classification, the number of litters, the farrowing interval, the technology of stabling and the nutrition are participant in the reproduction. This work considers all these factors and clears them up.
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Influence of condition sows on their subsequent reproductive performance
ŘEZNÍČKOVÁ, Lenka
The aim was to assess the effect of condition of sows on subsequent reproductive performance. Fitness was assessed based on subjective evaluation using a five-point scale from 1 to 5. Rating condition was performed in a group of around 162 pieces by the current cast piglet always for the reproductive period before birth and before weaning, at intervals during 2009 and 2010. The company has been annually monitored and backfat thickness of sows selected for the period before birth and before weaning. The results of subjective assessment of condition of sows found that sows in the measured density reached an optimal condition in the range of 3,5 to 4 points. The best condition in sows before parturition was on the 3rd, 4th and 7 litter. Before weaning sows were fit from 2,5 to 3,5 points. In the period before weaning reached 450 sows condition 3 with an average of 13,14 pieces of piglets born to 10,21 piglets born alive. In assessing the data on the height of back fat measured now been found that the examined sows ranged average amount of fat in the range of optimum condition for each reproductive period before parturition 19,85 mm, 16,52 mm before weaning, and the difference was 3,33 mm. The statistics were revealed in the amount of fat before birth dependent on the number of piglets (p=0.02), which is statistically significant indicator. At the height of the fat before weaning (p=0.65), the relationship is statistically insignificant. The biggest statistical dependence (p=0.00) difference was found in fat, which tells us that with increasing height of fat before birth increases the amount of fat before weaning. In the last part of the data on the reproductive performance compared to those undertaking trade mark under the key ?reproduction?. It was found that the company has a prejty good level of breeding, despote some fluctuatins in farming losses as a percentage of piglets and sows pregnancy. The company reached the average (between 2008 and 2010) in weaned piglets per sow and year of 21,23 pc, live born piglets per sow and year of 25,37 pc at 2,33 litters per sow per year, but has a large loss of suckling piglets , an average of 10,32 % and 3,78 % rearing, the percentage of sows insemination was 80 % of the company, should be min. 85 %. Due to deteriorating indicators monitored the implementation of an enterprise for restocking.
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Influence of stable environment temperature on sucking-pigs health
PRŮŠOVÁ, Jitka
The aim of the work was determined impact of microclimatic parameters of stabling environment at percentage of pregnant sows, and at health of sucking and young growing pigs. In sucking and young growing pigs were founded weak positive correlation between stabling temperature and mortality of weaning pigs, and weak positive correlation in comparison to humidity. There were founded strong negative correlation between grow up temperature of the environment and percentage of success pregnant sows, and strong positive correlatin in relation to relative humidity. Influence of the cooling ability of the environment and air flow speed were lower than the impact of the temperature.
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Impact of the condition saw on the reproduction parameters.
FRÜHAUF, Václav
The aim of the diploma thesis was to analyse the saw body condition and to judge the impact of the condition on the reproduction parameters. The body condition effect on the live weight of piglets in the litter from the birth to the weaning was not proved. The sows classed into the fasting condition had longer farrowing interval than saws classed into the breeding condition. The level of decrease the live weight of the sows during the lactation did not dramatically influenced the number of piglets in the litter. The highest piglet looses from farrowing to weaning were found in the first three litters. For optimal breeding conditions is necessary to keep the sows in condition closest to the breeding (optimal) condition.
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