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Užitkové vlastnosti prasat a efektivita produkce
Čadová, Marie
The work deals with utility properties of pigs when they are first discussed reproductive properties and factors affecting on them, and then the production properties and the factors affecting them. The next part of the bachelor thesis is devoted to the monitoring of selected pig farms. There the work evaluates the utility properties of the pig farm and describes the economic evaluation of the farm. It discussed sales and expenses of the farm, which are the basis for obtaining indicator of profitability of sales.
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Efekt selenu na antioxidační status organismu po porodu
Wronková, Sabina
The aim of this thesis was to develop a literature search and experimentally determine the effect of organic forms of selenium levels (0.3 and 0.6 mg/kg FM) of selenium on the antioxidant status in postpartum sows. Experiment included 18 sows in the postpartum period, which were divided into three groups according to age. The model animals were divided into three groups. The first group (Se1) sows (n = 6) served as a control, wherein the addition of selenium has not been increased. The second group (Se2) sows (n = 6) were fed 0.3 mg Se/kg FM. Third group (Se3) sows (n = 6) were fed 0.6 mg Se/kg FM. Premix was dosed in the morning feeding. To supplement selenium were used selenium enriched yeast (Sel-Plex - Alltech's). The results show that the dose of selenium in an amount of 0.30 and 0.60 mg/kg FM, increase the activity of antioxidant enzymes, glutathione peroxidase and superoxide dismutase. Glutathione peroxidase (GPx) after supplementation with 0.3 mg/kg selenium increased from the second sampling, but the third sampling was statistically significant (P <0.05). Doses of 0.6 mg/kg selenium also visibly increased level of glutathione, but these results can not be statistically demonstrated. Superoxide dismutase (SOD) at both doses (0.3 and 0.6 mg/kg) appeared selenium statistically not detectable visible growth. We also found an increase of antioxidant activity measured by the methods ABTS, FRAP and FR, although the methods ABTS and FR showed slight fluctuations. The amount of reduced and oxidized glutathione were also significantly (P <0.05) higher in both experimental groups. The selenium content of selenium supplementation significantly affected when the results of both experimental groups were statistically significant (P <0.05) higher. Level malonyldialdehydu (MDA) after supplementation with 0.3 mg/kg selenium statistically proven (P <0.05) increased in the third collection at 0.6 mg/kg selenium, we observed statistically demonstrable (P <0.05) increase from the second collection. We can therefore conclude that selenium supplementation in organic form, can reduce oxidative stress in confinement of sows and overcome this stressful period for the organism.
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Rozbor reprodukčních ukazatelů dosahovaných u prasniček a prasnic ve vybraném chovu
JEŘÁBKOVÁ, Adéla
The aim of this diploma thesis was to analyse the reproductive performance of sows at the particular farm during the time period 2018-2020. The highest number of piglets born alive was observed in 2018 (16.5 pcs; p < 0.05) with the highest rate seen among the sows that have had previously 3-5 litters (17.0; p < 0.05). The highest number of piglets born alive was observed at sows inseminated during the spring season. The average length of pregnancy of the sows during the monitored time period was 116 days. However, the highest number of piglets born alive was reached at sows with the pregnancy length between 110-115 days (16.6 pcs; p < 0.05). Most piglets born alive were born to gilts introduced to the breeding cycle at the age higher than 290 days (15.1 pcs). And lastly, most piglets born alive were born to the sows inseminated by the boar catalogued as #85 (17.1 pcs; p < 0.05). The number of stillborn piglets in 2018 was 2.3 pcs. The number increased to 3.1 pcs in 2019 and slightly decreased in 2020 to 3.0 pcs. The number of litters with 3 and more stillborn piglets was lowest (12%) during the 1st parity then it rapidly grew until it reached its peak during the observed period at the 8th parity (45%).
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Vlivy výšky hřbetního tuku při zapouštění na reprodukční ukazatele prasnic
VALEŠKOVÁ, Denisa
The bachelor thesis topic is about rating of a sows reproduction attributes due to the backfat thickness during fertilization. In the academical part of this thesis are described primary factors which affects sows reproduction. The aim of thesis is evaluation of each reproduction factor affecting sows reproduction at the breeding farm. Data was collected in year 2019 from 1 865 pcs. gilts and sows stabled at the breeding farm. The measurement of the backfat thickness in the monitored group of pigs is done approximately one week before fertilization after weaning of sows to the separated cages. Best fertilization results sows and gilts achieves at the limits of measured values of the backfat thickness. In the monitored group, sows in average reach 17,2 piglets per birth that means 41,3 of all piglets born per year. The most live-born piglets from sows are in range from 8 mm to 18 mm and 18,1 piglets in average. The most live-born piglets from gilts are in range from 10 mm to 14 mm, which is lower values for backfat thickness, and 16,5 piglets in average.
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Analýza vlivů ovlivňujících délku intervalu od odstavu do zapuštění u prasnic
BOUŠKOVÁ, Renata
The aim of the thesis was to assess and evaluate effects on weaning to service interval (WSI) in sows. On the sow farm, where the observation took place, were on average born 15.5 of all piglets/1 litter, of which 14.6 piglets were live born. The average length of the weaning to service interval in sows was 5.6 days. The most common length of WSI was 4 and 5 days (83.3 % of litters). In CLW sows (5.9 days) was found that the weaning to service interval was 0.4 day longer than in CLWxCL hybrid sows (5.5 days). With the rising parity number, the length of WSI declined. There was proven a difference of 1.2 days (p < 0.05) between the parity 1 (6.0 days) and the parity 5 (4.8 days). In terms of parity number and sow's genotype, the largest difference was recorded in the parity 1. In hybrid sows CLWxCL was WSI (5.7 days) 1.3 days shorter compared to CLW sows (7.0 days). The highest number of all piglets born was found in sows in the parity 3 (16.1 piglets), while the most live-born piglets were recorded in sows in the parity 2 (15.0 piglets). The shortest WSI (5.3 days) was in the winter and the longest WSI (5.9 days) in the autumn. The highest number of all born piglets was born to sows with the WSI length of 0-3 days (17.5 piglets). With increasing WSI, the number of all piglets born decreased. The lowest number of all born piglets (15.1 piglets) was in sows with WSI length of 6 days. In the weaning to service intervals longer than 6 days, the number of all piglets born increased.
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Faktory ovlivňující reprodukční ukazatele prasnic
CHOUTKOVÁ, Martina
The aim of the bachelor thesis was to analyse individual reproductive indicators in selected breeding parameters (the number of all piglets born, live born piglets, and wean piglets, wean to insemination interval, a farrowing interval, the age at the first insemination and the percentage of gravid and farrowed sows after insemination). The results of the reproductive indicators, for an observed period of a time, are compared between farms and confronted with the results of other authors. From the researched subjects there were 29 867 births of sows and gilts, from June 2019 to July 2020, in which an average were born 15.1 piglets out of which 13.8 were live born and 11.8 were weaned. The average wean to insemination interval was 6.1 days, and the average farrowing interval was 150.8 days. The gilts were inseminated approximately at the age of 265 days. 93,1 % of all inseminations ended in gravidity.
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Sexuální projevy u kanců a prasnic
JELÍNKOVÁ, Lenka
The bachelor thesis deals with sexual manifestations in boars and sows. The aim of this thesis is to monitor and evaluate sexual manifestations in boars and sows in conventional breeding. The bachelor thesis is divided into a theoretical and a practical part. The theoretical part is focused on the importance of breeding, breeding history, pig numbers and the breeding system in the Czech Republic. The focus is then placed on the development of pig genitals, sexual activity management, sexual behavior and sexual reflexes. The practical part covers the principal assessment, which is based on permanent monitoring of pigs during sexual intercourse. Individual sexual reflexes time duration, specific manifestations or caregiver interventions are closely followed. Sexual behavior was monitored in a pig herd numbering 17 boars and 71 sows (of which 10 were gilts) with a total number of 202 matings, of which 102 were successful (need for assistance being 51.8 %) and 100 unsuccessful. The results were formulated in tables and graphs.
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Vliv délky laktace na reprodukční užitkovost prasnic
MUKOSHA, Chisenga Emmanuel
The aim of the master´s thesis was to analyse the effects of the length of lactation between weaning after 21 days (2013-2015) and 28 days (2016-2019) on a commercial farm. The number of total born piglets was higher to the sows that weaned at day 28 (15.0 piglets) by 0.5 piglet compared to day 21. The number of alive born piglets was higher when weaned at day 28 (13.5 piglets) by 1.0 piglet compared at day 21. The average was greater weaning at day 28 (11.5 piglets) showing an increase of 0.7 piglet. The number of alive born piglets was recorded at its highest in the year 2019 with an average of 14.0 piglets which is an increase of 1.6 piglets (P < 0.05) compared to the year 2013 which recorded the lowest average of 12.4 piglets. The highest average was recorded during parity 4 (13.5 piglets) and the lowest during parity 7 (12.2 piglets). The difference was 1.3 piglets (P < 0.05). Large White breed (13.2 piglets) had the highest average number of alive born piglets with an increase of (0.8 piglet) compared to the lowest recorded with the Landrace breed (12.4 piglets). The combinations of LW L (13.1 piglets) had a higher average of piglets of about (0.6 piglet) compared to the combinations of L LW (12.5 piglets). The average age at first farrowing was 360.1 days. The correlation coefficients between the age of gilts at the first farrowing and the number of born piglets (total and alive) were evaluated as low and were not statistically significant. A statistical difference in the average number of alive born piglets with sows equal to or less than 114 days had a higher average of about 0.8 piglet (P < 0.05) compared to gestation length equal to or more than 115 days. The farrowing interval with 146 days had a greater average number of alive born piglets by 0.2 piglet in comparison to the average when the farrowing interval was 145 days. There was an increase in the average to the number of alive born piglets with weaning to conception interval (WCI) 4 days with an increase of 0.5 piglet (P < 0.05) compared to WCI 5 days.
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Analýza růstových parametrů selat
Vafková, Ivana
The aim of this study was analysis of growth parameters in piglets. 40 first litters of sows gave data for study. Number of piglets, birth weight, weight at 14 days and weight at weaning were analysed with mathematics and statistics method and evaluated dependence of growth parameters of piglets. Especially influence of birth weight and sex on weight at 14 days and weaning and on average daily gain. Dependence of productive index of piglets and reproductive index of sows was studied. Results poited to influence of birth weight to weight at 14 days, weaning weight and average daily gain. With higher birth weight was higher weight weight at 14 days and weaning and higher average daily gain. Reproductive index and productive index shows to correlation between number of piglets and litter weight.
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Vliv výživy na mléčnost chovných prasnic
Ticháček, Martin
This bachelor thesis deals with the diet influence on milk production of breeding sows. The sow milk yield is the ability of females to produce milk for the needs of piglets. To maximize and optimize milk composition, an ideally balanced diet is required. Complete feed mixtures are prepared to provide esential nutrition of sows. Those feed mixtures consist from the individual feed components corresponding to the individual categories. It is necessary to pay extra attention to the essential amino acids and especially lysine for rearing of pigs. This thesis presents differences in feed technology also. These differences depend on the different sows, housing, and last but not least, on climatic conditions. The objective of this work is to provide general information about the effects of nutrition and feeding techniques on lactation of breeding sows.
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