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Růstové schopnosti plemene limousine ve vybraném chovu
KAČÍREK, Pavel
The aim of the bachelor thesis was to monitor and evaluate the growth performance on a family farm in Nový Kostelec. The growth performance evaluation was carried out on a total of 56 Limousin breeding animals. Weighing of each animal was performed at 120, 210 and 365 days of age. When evaluating the growth ability of the bulls, it was found that the highest growth performance of the bulls in the period from birth to 120 days was achieved in 2021, when the average weight of the bulls was 200,36 kg and the average daily gain for the period was 1,286 kg, while the best growth performance in the period from 120 to 210 days was achieved in 2022, when the average weight of the bulls at 210 days was 330,84 kg and the average daily gain since birth was 1,464 kg, in the period from 210 to 365 days the best growth performance of the bulls was achieved in 2022 when the average weight of the bulls was 524,08 kg and the average daily gain for the period was 1,218 kg. The highest average daily gain of bulls since birth was found in 2022 when it was 1,278 kg. In evaluating the growth performance of heifers, it was found that the highest growth performance in the period from birth to 120 days of age was achieved, in 2021, when the average weight was 168,57 kg and the average daily gain for the period was 1,033 kg, while the best growth performance in the period from 120 to 210 days of age was achieved in 2021, when the average weight at 210 days of age was 292 kg and the average daily gain over the period was 1,366 kg, and in the period from 210 days to 365 days of age the best growth performance was found in 2021 when the average weight of the heifers was 420,16 kg and the average daily gain over the period was 0,830 kg. The highest average daily gain from birth for heifers was obtained in 2021 when it reached 1,057 kg.
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The impact of hand-rearing of the Psittaciformes chicks on their future breeding behaviour and reproduction abilities.
BALABÁN, Michal
Hand-breeding of Psittaciformes is an important theme in connection with potential problems in the reproduction of such reared individuals. This also affects the future survival of some endangered species in the wild. This theme is not very developed in the literature and many breeders are of the opinion that artificially fed birds could cause problems in breeding. Literary research on the given theme, elaboration of 54 anonymous questionnaires filled in by breeders and three interviews with breeders who encountered the issue of inclusion of artificially fed individuals in breeding are chosen as the methodology. During the literature search, evaluation of questionnaires and from the conducted interviews, it was found that mainly the method, resp. the course of artificial breeding, determines the characteristics and abilities of parrots for their future life. The course of hand breeding depends on the decision of the breeder, for what purpose the parrot is intended, whether for breeding or as a domestic companion. Depending on the circumstances and conditions, the hand breeding parrot is able to be of the same quality for breeding as a naturally bred individual or to be a perfect pet. The results of this work contribute to the view that endangered populations of some captive species, which are very difficult to reproduce naturally, can be supplemented under the right conditions by reintroduction of hand-breeding parrots. Artificially bred individuals can also be placed in captivity. If the right process of socialization has taken place, such birds have the same ability to reproduce as naturally bred individuals.
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Comparison of different ways of breeding, nutrition and controlled reproduction of Lota lota
ZÁVORKA, Milan
Based on the results reached after 216 days of experimentation with various breeding types, it can be said that the type of feed is not of paramount importance. This fact is based on the previous adaptation of submitted food, this is especially important for artificial feed. From our point of view, the more important factor is temperature, intensity and method of breeding. Prey selections choices involving 11 species of fish were performed on age groups of different burbot. All groups of burbot preferred the following species: grass carp, pikeperch, tench and stone moroko. The non-preferred species was ruffe. And different preferences were set for common carp, silver carp, burbot, sunfish and also for roach. The study evaluated reproductive parameters in burbot (Lota lota ) and focused on incubation time in two localities. Burbot spawning was observed from January to early February at an average temperature of 1.55 +- 0.9 °C in Borova Lada and 4.78 +- 0.11 °C in Mydlovary. For burbot at the age of 2+, at an average 1166 +- 100 were determined number of swollen eggs per gram. Relative fecundity was at 257260 +- 70678 eggs per kilogram of female. The absolute fecundity was at 24232 +- 6753 eggs.The last parameter evaluated was the incubation period. The average incubation period in the years 2020-2022 was 202 +- 24.55 °D in Mydlovary and 75.8 +- 16.67 °D in Borova Lada. In connection with artificial spawning, in this study, we further point out the possibility of peeling artificially spawn eggs with NaClO, in which we did not observe a negative effect.
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Porovnávání růstu a stavby těla chladnokrevných hřebců
BALOUŠKOVÁ, Lidmila
The thesis deals with the comparison of growth and physique of the draught-horse stallions. There are three main draught-horse breeds in the Czech Republic - Noriker, Silesian Noriker and Bohemian-Moravian Belgian horse. Currently, the amount of these draugt-horses decrease significantly and we should pay more attention to their preservation. In total, 45 Bohemian-Moravian Belgian stallions, 16 Silesian Norikers and 12 Norikers were involved in the monitoring. The stallions were measured in the age between 6 months and 2,5 years. During the measurement, the basic body size, main size and body weight were measured and selected body indexes were calculated. The measurement took place in Humňany (Zemský hřebčinec Písek, s.p.o.), in Janovice u Trutnova (Chov koní Dvorka) and in Proseč pod Křemešníkem (Farma Hrnčíř). All the body sizes collected at the age of 2,5 years were in accord with the sizes required for the acceptance of the stallions to studbooks (except for circumference of foreshank of the Bohemian-Moravian Belgian breed).
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Analýza reprodukčních vlastností plemene valaška
VRŠECKÁ, Lucie
The aim of this diploma thesis is to evaluate the level of reproductive performance of Wallachian sheep. There were used data from the original kennel evidence and from the performance cracking. It is focused on fertilization, reproduction intensity, fertility and rearing lambs. Fertilization of Wallachian sheep was in between 89,5 99,4 percent. Reproduction was in between 141,4 158,1 percent. Level of rearing was in between 108,1 139,6 percent. There were born 972 lambs in years 2012 2016. The most lambs were born in the year 2016, it was 265 lambs. It is because there were the most ewes in the herd in the reporting period. There were born one lambs, twins and triplets. The most frequent were twins at a ratio of 49,9 percent. The less frequent were triplets at a ratio of 4,7 percent. Number of lambs does not depend on the age of ewes. The number of lambs in a the litter did not differ by lines.
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Comparison of survival, growth rate and overall breeding of grass carp (Ctenopharyngodon idella) juveniles in pond and recirculating aquaculture system during winter time.
PECHER, Petr
The study compared survival and growth rate in grass carp (Ctenopharyngodon idella) juveniles in pond and recirculation aquaculture system (RAS) during winter time. The juveniles of grass carp were stocked to 5 tanks and three ponds during 2013 and 2014. In the RAS, the fish were fed by dry pellets and rearing was in constant temperature. In the pond, the temperature and feeding were only natural. In the RAS, the survival rate was significantly higher 97.79 % 0.52 % compared to 10.94 % 11.42 % in the pond. At the end of experiment, the weight of fish, Specific growth rate (SGR) and Fulton coefficient (FK) was significantly higher in RAS in comparison with the pond. The results showed that the rearing of grass carp is more effective in RAS in comparison with pond during winter time.
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Evaluation of breeding of birds of the order hornbills (Bucerotiformes) in selected zoos in the Czech Republic
ZÁHOROVÁ, Lucie
Hornbills have often been bred in zoos during recent years, not just abroad but also in the Czech Republic. These birds, characterized by long curved bill and casque, play an important ecological role in the wild as "forest farmers". Unfortunately their populations have been decreasing in the wild. Hornbills are facing habitat loss and food decline, they are hunted for their meat and for trade. Also some species are now commonly bred in captivity, the experience with breeding and rearing hornbills is not very extensive. Moreover, their specific nesting biology together with complicated social bonds rank hornbills to species with very low reproductive success. Therefore, appropriate breeding technique based on knowledge of the biology and ecology of the species is essential for successful breeding and rearing. The work effort of all zoos can in this way contribute to protection of the species in the wild. This theme describes conditions and results of hornbill breeding in Liberec zoo, Dvůr Králové zoo and Zlín Lešná zoo. Its goal is to determine the main factors influencing hornbill´s nesting in captivity.
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Posúdenie ekologického chovu oviec podľa typu výživy
Žišková, Katarína
In this thesis was the biggest focus on nutrition in rearing lambs after very early weaning on particular existing ecologic farm in the Spiš region on Slovakia. This thesis was focused on assessing the difference and suitability between two organic granular compound feed (starter), which were made to order. Feeding mixtures consisted of a different representation of the same components, where the experimental feed had higher nitrogen substances (NL). To confirm this difference was conducted chemical analysis. In that year 80 lambs were weighed, and they were divided into two groups since 06.02.2014 to 23.05.2014. The average age of lambs after attempt was 104 days. The measured values were subjected to statistical evaluation of weight, weight gain and daily gain during the test, weighing and period of weaning from milk. Lambs achieved during the test total increase of weight gain in the experimental group 17.9 +- 0.252 kg and 20.75 +- 0.775. Average daily weight gain by the end of the experiment was 0.17 kg in the experimental group and 0.202 kg in the control. Their growth (y) was expressed by two regression equations for test y = - 0.0002x2 + 0.1923x + 2.6564 (R2 = 0.998) and control group y = - 0.00012x2 + 0.2139x + 2.5567 (R2 = 0.999). Our results show demonstrable differences between lambs fed with different feed mixture. In the control group EKO BK3 with the original compound feed had lambs all results better than the experimental group ECO START OVIS, despite the higher content of nitrogen substances in compound feed.
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The Effect of rearing and age at first calving on the performance and longevity of Holstein dairy cattle
SMRČINA, Tomáš
This thesis examines the influence of the level of rearing and age at first calving on performance and longevity of Holstein dairy cattle in the company ZD Krásná Hora nad Vltavou C. The quantity of milk per kg in the first lactation, functional longevity in kg of milk, functional longevity and longevity in days belong among the indicators observed by cows of Holstein cattle. The results of the monitored herds can be concluded that extension of age at first calving is statistically significant on the amount of milk in the first lactation, on functional longevity in kg of milk, on functional longevity and longevity in days. In contrast, no significant influence of the weight was elicited by observed indicators. The highest longevity in the monitored herd was achieved by the cows that were excluded for a difficult birth and also achieved the highest milk yield for functional longevity in kg milk and observation for the highest average in the number of lactations for life.
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The effect of linseed oil to pregnant and lactating ewes for rearing lambs
KLÁTIL, Jaroslav
The aim of this thesis was to evaluate the influence of the addition of linseed oil to pregnant and lactating ewes to rearing of lambs. For more conclusive results ewes were divided into groups that received linseed oil (for testing) and the group without the constituents of linseed oil in the diet (control). Effect of linseed oil was demonstrated in ewes blood analysis. Analysis of blood parameters were monitored three - cholesterol, triglycerides and lipase. Physiological levels of cholesterol in sheep is 1,7 mmol.l-1. Before the test was observed in ewes cholesterol levels from 1,6 to 2,2 mmol.l-1 and after the test in the range from 1,3 to 1-9 mmol.l-1. Cholesterol after the test decreased in both the test and the control group. Natural levels of triglycerides in ewes is 0.8 mmol.l-1. In our case, the TAG content was below this threshold. Before the test from 0,18 to 0,22 mmol.l-1 after the test from 0.08 to 0.19 mmol.l-1. In test and control groups after the test content triglycerides decreased. After the test, reducing the content of the lipase in the test group and an increase of the content of the control group. Lambs of control and test group ewes were compared on the following criteria: average daily gain (higher increases should control group lambs), weight in control days, the chemical composition of meat - nitrogen, protein and fats. The normal composition of lamb meat: 21 % crude protein, 4,75 % fat and 1,1 % ash. In our case, the content of the NL test group 22,3 % and 21,8 % of the control group, the fat content of the test group and the control 6,5 % and 5,4 %, ash content in the test group and the control 1,23 % and 1,25 %. Further monitoring criteria: weight in carcass weight (between groups) and analysis of blood (cholesterol, triglycerides and lipase) - no difference between test and control lambs.
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