|
|
Poruchy plodnosti prasnic
Vašicová, Tereza
The bachelor thesis focuses on fertility disorders in sows. The first part describes the reproductive system, i.e. the reproductive organs of the sow; fertility and its parameters, which include internal and external factors affecting fertility, such as nutrition, microclimate, lenght of the inter-period or age of the sow. The sexual cycle of the sow i salso briefly described, covering all stages, namely proestrus, estrus, me-testrus and diestrus. The second part focuses on fertlity disorders, which are divided into congenital, which include developmental disorders or anomalies, acquired, which are most commonly caused by viruses or bacteria, and separately also infertility. For the disorders, the clinical manifestations of the disease, their onset, or prevention, and in some cases, if known, therapy are described.
|
|
|
Analýza ztrát selat v konkrétním chovu
Fabiánek, Tomáš
The aim of this thesis was to evalulate reproductive traits of sows in specific farm. All data was collected in period 2017-2021 from sows which are raised by agricultural company GenAgro Říčany a.s. In data there are informations about 3862 litters in total. In sows there was observed gestation length, number of piglets total born, number of liveborn piglets, stillborn piglets, weaned piglets, preweaning mortality in litters and reasons for their elimination. There is evalulation of effect of year, parity and gestation length on these reproductive traits in this thesis also. Statistica and R programs were used to perform this evalulation. Average gestation length for the whole period was 113,92 days. Average number of piglets total born was 15,74. Average number of liveborn piglets was 12,84 and stillborn piglets was 2,89. Average number of weaned piglets was 11,86. Average number of preweaning mortality was 1,78. There was observed significant effect of year, parity and gestation length on reproductive traits in this thesis.
|
|
|
Zootechnické aspekty inseminace prasnic
Hájek, Petr
The aim of the bachelor thesis is to provide a comprehensive view on the issue of sow insemination and to summarize the current state of knowledge in this area of agricultural production. The bachelor thesis focuses on the description of insemination and on the zootechnical aspects that influence the insemination of sows. As insemination is the most used method of reproduction nowadays, emphasis is placed on the anatomy and physiology of the reproductive apparatus of the sow. Also described are the zootechnical aspects that affect insemination and how these factors influence it. In the last part of the thesis, the insemination itself and its methods of performance are described, discussing the advantages and disadvantages of insemination, including new options such as the semen capsule and its gradual release or a product to influence ovulation.
|
|
|
Reprodukční užitkovost přeštických černostrakatých prasnic
Kaplanová, Petra
The aim of this thesis was to evaluate the reproductive parameters of the extensive breed Prestice Black-Pied. In the selected breeds the analysis of the effect of parity number on the number of all, liveborn and stillborn piglets, piglet losses and the number of weaned piglets. Furthermore, the reproductive and production indicators in sows of individual boar lines of the Prestice Black-Pied breed were evaluated. The best results were recorded in the sows of the 4th litter, namely in the number of all piglets born (10.58 ± 1.82 pcs), liveborn piglets (9.33 ± 1.71 pcs) and weaned piglets (8.71 ± 1.60 pcs). The lowest losses of piglets from birth to weaning were recorded in the 5th litter (0.36 ± 0.81). The reproductive performance of sows in the first litter according to the boar lines was evaluated. The highest number of all piglets born was found in the sows of the boar line Sáčko and Wiskont (11.00 piglets). In the number of liveborn piglets, the best results were obtained by sows of the boar line Wiskont (9.57 piglets). The number of weaned piglets was highest in the Sáčko boar line (9.00 piglets). The highest average daily gain in the own performance test was achieved by sows of the Mason line (592.88 g/day). Furthermore, the highest lean meat content was found in sows of the Sáčko line (61.20 %), while the lowest backfat thickness was found in sows of the Sáčko line (0.80 cm).
|
|
|
Intrauterinní růstová retardace selat
Kršová, Eliška
This bachelor's thesis focuses on intrauterine growth restriction of piglets. The first part of the thesis deals with sow hybridization, the creation of super-fertile sow lines, and how breeding can affect litter size. The second part focuses on the issues of highly fertile sows, particularly in terms of nutrition, housing, delivery, lactation, weaning, and preparation for the next pregnancy. The third part focuses on intrauterine growth restriction of piglets. This section describes what this condition means and what can influence it. The fourth part deals with problems in piglets with intrauterine growth restriction. Methods for the application of artificial milk, the use of surrogate sows, or split nursing are described here.
|
|
|
Vyhodnocení reprodukční užitkovosti prasnic ve dvou typech porodny
Zahnáš, Radek
The aim of the thesis was to evaluate the reproductive performance of sows in two types of farrowing houses. These were the old maternity ward built in 1957 and the new maternity ward built in 2019. The monitored indicators were age at 1st insemination (days), age at 1st farrowing (days), number of all piglets born (pc/litter), number of live-born piglets (pc/litter), number of surviving piglets (pc/litter), length of weaning (days), losses of piglets in total (pcs), losses of piglets from birth to weaning (%, pcs), number of inseminations needed to impregnate a sow (insemination index), length of the intermediate period (days), length of the service period (days), length insemination interval (days), length of pregnancy (days), reasons for sow rejection (%) and reasons for losses of piglets to weaning (%). The data was evaluated using the Statistica 14 program (ANOVA, Turkey's test). 100 sows were monitored in both types of births on the 1st-3rd. litter. The new maternity ward achieved better results for all monitored indicators, except for the length of pregnancy. For all born, live-born and reared piglets, it reached the highest values at the 3rd parity. The shortest weaning periods in both the new and the old maternity wards were at the 2nd parity. Piglet losses from birth to weaning (%) were lowest at parity 1. At the 2nd and 3rd parity, the differences were very highly statistically significant. The insemination index ranged from 1.08 to 1.22 for both types of deliveries. The shortest intermediate period (150.16 days), service period (33.84 days) and insemination interval (36.52 days) was achieved by the new farrowing house between the 2nd and 3rd litter. The length of pregnancy was almost the same, but the old maternity ward fared better, when its average length of pregnancy was the shortest for the 2nd and 3rd litters at 113.5 days. At the new maternity ward, the shortest pregnancy was found in the 3rd litter of 113.66 days. The most common reasons for sow bracken were reproductive disorders (37%), locomotor disorders (21%), low performance (16%), udder disorders (9%), poor condition and health, both (6%) and age (5%) ). The most common cause of losses in both types was littering (50%) in the new maternity ward and (65%) in the old one. Furthermore, diarrheal diseases in the new (20%) and in the old (15%). Other causes were respiratory problems, starvation and unknown reasons.
|
|
|
Analýza reprodukční užitkovosti prasnic ve vybraném chovu
Bauerová, Šárka
The aim of this bachelor thesis is to evaluate the reproductive performance of sows in a selected enterprise. In the literary part of the thesis the state of pig breeding in the Czech Republic, reproductive characteristics of sows and basic indicators of reproductive perfor-mance in boars are described. For the reproductive traits of sows, such as fertility and milk yield, external and internal factors affecting them are described. The methodology of the bachelor thesis includes general characteristics of the enterprise. Indicators of the sow herd, including young sows, which consisted of an average of 500 sows, include the % of sows farrowed after first insemination, the number of all piglets born and the number of stillborn and live-born piglets.The length of weaning and number of piglets weaned, the age structure of the sow herd and the reasons for weaning were also assessed. The results obtained are compared with the results of the reproduction indicator in the Czech Republic and also in the Vysočina region. A proposal is included for the optimization of breeding conditions that could influence reproductive indicators and improve reproduction in the breeding.
|
|
| |
|
|
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.
|
|
|
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.
|
guest ::
