The main objective of this thesis was to evaluate various fertility indicators of dairy cows of Holstein cattle bred in modern farming techniques on the farm Rolnička Lipanovice and contribute to the clarification of interdependence of the factors, which influence fertility results. 288 inseminated breeding cows were included in to the reference group, in which it was possible to significantly demonstrate data collected by own observation or from the farm owner and inseminators. These data were collected since 1. 7. 2009 to 30. 6. 2010 and revealing information about rut course and intensity of observed breeding cows. The results that were concluded from recorded and processed data characterize the influence of various factors on fertility.

Main goal of this thesis was to compare geographical variability of sizes of colonies in the relationship with the type of roost of 6 models of originally cave bats species: Greater mouse-eared bat (Myotis myotis), Geoffroy's bat (Myotis emarginatus), Common bent-wing bat (Miniopterus schreibersii), Greater horseshoe bat (Rhinolophus ferrumequinum), Lesser horseshoe bat (Rhinolophus hipposideros) a Mediterranean horseshoe bat (Rhinolophus euryale). The selected data set was also analyzed the possible influence of the composition of land cover in roosts around the variability of the size of the colonies. Based on compilation of literature and active communication with regional bat-monitoring coordinators, entries about size of colonies from 2 603 locations in 24 countries of Europe were collected. 1 952 entries were from roosts in buildings and 651 from caves. Based on statistical analysis, conclusive influence of type of roost on size of colonies by M. schreibersii, M. myotis a R. hipposideros was discovered. While in M. schreibersii and M. myotis are human colonies in smaller buildings, in R. hipposideros by contrast, they are larger. Simultaneously, north-west gradient in geographical distribution of maternal bat- colonies in dependence on type of roost (caves vs. buildings): in southern areas...

This thesis deals with the problem of childlessness, fertility and infertility. The aim of this study was to trace the reproductive behavior and changes that have occurred over time. The current situation in the Czech Republic, I relied on demographic statistics of the Czech Statistical Office. For comparison, the Czech Republic and other European countries I used data obtained from Eurostat. Own research I carried out a questionnaire on the website Vyplňto.cz.

In most of the mammalian species the courtship is a very important event preceding the reproduction itself. In some species specific courtship strategies are well described, however, in horses they are not, although courtship may have a major impact on the reproductive success of the individual. In horses (Equus caballus), polygynous mammals with harem type of social organization, courtship naturally involved wide spectrum of behaviour, by contrast, under domestic conditions they almost do not occur. This diploma thesis addresses the courtship and reproduction in semi-feral and domestic horses, specifically Exmoor pony and Merens horse breed, and individual reactions of mares to the stallion in the breeding season. A total of 45 individuals were observed for 240 hours from February to June 2018. We assumed the similarity of courtship within particular couples, but the result of the statistical analysis was the opposite, a high variability in the behavioural pattern repeatability (ICC 0,235-0,832), which, however, did not correlate with individual mare characteristics, i.e. age (ρ=-0,194, p=0,472), parity (t=0,569, p=0,578) or postpartum estrus (t=-0,070, p=0,945). We also assumed that the mare, which would show aggressive behaviour to the stallion during the courtship, would end the courtship by leaving or...

Kandidátská disertační práce z oblasti asistované reprodukce.

The aim of the thesis was to evaluate the reproduction and production indicators from the data obtained and processed on the selected farm. Farm indicators were evaluated between 2013 and 2017 and 200 sows were selected from multiplier herds for which selected reproductive indicators were evaluated. The reproduction indicators were evaluate the number of all born piglets, the number of alive piglets, the number of weaned piglets and the stillborn piglets from birth to wean by parity and gestation length. The highest number of all born piglets and weaned piglets per year was reported by the farm in 2017. 15, 6 ± 3.3 pcs of all live piglets were born and 11.9 ± 1.6 pcs of piglets per litter were weaned. The average was weaned 1.8 ± 2.9 piglets. In terms of production indicators, the average daily gain and feed conversion per 1 kg increments for the pre-fattening and fattening category were evaluated by year and season. The highest average daily gain in both categories was found in 2015, in pre-fattening it was 414.7 ± 18.9 g/day and in fattening it was 813.8 ± 34.1 g/day. For the feed conversion indicator, the lowest values were found in 2015. In the pre-fattening category feed consumption per kg of gain it was 1.79 ± 0.19 kg and in fattening it was 3.01 ± 0.19 kg/kg.

Submitted thesis aims to assess fertility, reproduction, reproductive performance and maternal behavior of the zwartbles sheep breed. Detected were the most commonly used methods of breeding and, subsequently, fertility indicators used for assessment of reproductive performance such as fertilisation, fertility, the intensity of breeding, the number of newborn lambs, sex ratio, the ratio of singletons, twins and triplets. Childbirth was also monitored with a focus on its course, its level of difficulty and the need for assistance on the part of the breeder. Considered was the maternal behavior in the selected parameters of the zwartbles sheep breed, both sheep divided according to the age, as well as for individual families and blood lines in the herd. Analyses were conducted on the herd of sheep breed zwartbles on the family farm in Mohelno.

Abstract This diploma thesis aims to evaluate the natural breeding of cattle that excludes cattle bred for the market production of milk, and the birthing complicatedness in one specific company. The thesis includes short descriptions of the male and female cattle reproductive systems, the pregnancy cycle, and the birth. The most common complications during and after giving birth will be introduced along with a short summary of how to take care of the mother and the calf during the most critical period of their lives. This information is then applied to the circumstances in the chosen company where each birth was recorded with focus on its complicatedness, the size of the calf in relation to the size of the mother, and postnatal complications. The weight gain of selected calves was recorded during two separate weight checks while the data for cows include the age of their first calving and the period of time they have spent in the breeding cycle before the research.

The aim of the diploma thesis was to analyse the factors affecting the reproductive performance of sows in the conditions of farming. Self-monitoring of awakening in selected pig breeding, data for evaluation was published in PIGMATIC. The period from 2016 to 2018 was selected for evaluation. Sows were Topigs genotype and boars of BO x PN genotype were embedded. In terms of the reproductive indicators there were evaluated successful insemination and the frequency of piglets, the number of all piglets born, the number of alive and stillborn piglets and the number of piglets weaned. It was evaluated according to the order of the reproduction indicator. Furthermore, an assessment was conducted in accordance with the parity and the specific causes of the elimination. It can be stated from the evaluation of the achieved results that the company has average reproductive performance and the litter order has a significant influence on the litter size. The best reproductive parameters were achieved in 2018, namely 14.7 of all births, 13.3 live births and 11.5 weaned piglets per litter. The stillborn piglets averaged 8.22% in 2016, 9.78% in 2017 and 9.39% of the litter in 2018. In 2016, the number of born piglets in the 4th litter, in 2017 in the 7th litter and in 2018 in the 5th in the year of litter increased in the number of all born piglets. In the case of older sows, the number of piglets born decreased. In evaluating the success of the insemination, it can be said that the best results were achieved in 2016, when 89.5% of the total number of admitted breeders took over. The worst results were achieved in 2017, when 86.2% of the total number of admitted sows were pregnant. Despite this, it means good sowing of sows mainly due to the successful search for rut and proper insemination techniques. The sows in the observed breed were better with young from the 8th litter. Furthermore, it was found that sows and gilts were the worst in the summer months. The highest number of sows was eliminated in 2016 after the first litter, in 2017 after the tenth litter and in 2018 after the eighth litter. The main cause of the decommissioning of breeding was poor health in 2016 and 2017, in 2018 it was old age. Due to old age, sows were eliminated in 2016 from the 8th litter, in 2017 from the 10th litter and in 2018 already from the 7th litter. Other reasons for decommissioning of sows were overrunning, limb defects, low yield, difficult births and abortion. Sows in breeding reach high litters, which indicates very good individual zootechnical care for individual sow.

Beef Simental is a beef breed that is bred almost all over the world. In the Czech Republic there is the third most widespread of meat breeds in the number of cows. Most breeding bulls of this breed act in natural breeding, which confirms its popularity in commercial crosses. This diploma thesis was focused on growth ability and evaluation of reproductive indicators in five breeds dealing with breeding of this breed in performance control. The influence of breeding conditions, sex, breeding method, calving on weight of calf at birth, at 120, 210 and 365 days was monitored. Furthermore, the length of the interim period, the age at the first calving and the order of calving of the cows in the herd of individual breeders were determined. The influence of breeding conditions, breeding method, sex and calving rank was statistically highly significant (p ˂ 0.01). Difference between calves born after insemination bulls and after natural breeding was 25 kg. Bulls had higher weights in all reference periods (120, 210 and 365 days). The difference between the average weight of a bull and a heifer was 146 kg. There was a statistically significant difference (p ˂ 0,01) between the calves from the first calvers and the cows on the second calf and the other calves in weight. The average age at first calving in the evaluated farms is 954 days which confirms the current trend but is in conflict with the breeding goal of this breed.