• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 64
  • 1
  • Tagged with
  • 66
  • 33
  • 19
  • 13
  • 10
  • 7
  • 6
  • 6
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • 5
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Etologické projevy dojnic ve stájovém prostředí / Ethological manifestations of dairy cows in the stable environment

SCHÖNOVÁ, Eva January 2014 (has links)
The aim of this bachelor´s thesis was to capture the basic behaviour categories in dairy cattle breeding cows in production stable in relation to their reproductive cycle. The research was carried out on four groups: after calving (12 pcs), between 1st - 3rd insemination (50 pcs), heavily pregnant (39 pcs) and cows in the dry period (32 pcs). The milk and combined utility type of dairy cows were housed in a large scale stable. Milk yield was monitored as a factor of milk performance traits. Milk yield of Holstein cattle (H) and Czech Fleckvieh cattle (C) were 35.10 kg and 30.88 kg (P>0.05) during increasing milk flow. In a group of dairy cows in insemination period Holstein and Czech Fleckvieh cows produced 31.16 kg of milk respectively 25.15 kg. The differences in milk yield were statistically significant (P0.01). In the group of heavily pregnant cows decreased milk yield in both Holstein and Czech Fleckvieh cattle to 18.18 kg respectively 17.31 kg of milk (P>0.05). The length of insemination interval (from the group of fertility traits) reached 75.57 days within group of dairy cows H and 67.82 days within group C. Service period of dairy cows H was 151.99 days and 152.25 days within dairy cows C (P>0.05). The length of feed intake was determined while differences in behaviour were being assessed between groups. In the group after calving took the feed intake 25.7 % days, in the group of dairy cows in insemination period 23.9 %, by heavily pregnant cows 25.8 % and by dairy cows standing in the dry period 29.6 % of total time. The length of standing achieved by the group after calving was 18.8 %, by the group of dairy cows in the insemination period 24.0 %, by heavily pregnant dairy cows 16.5 % and by dry cows 15.7 % of total time. The length of rest was by the group after calving 42.0 %, by the group of dairy cows in the insemination period 37.1 %, by heavily pregnant dairy cows 53.9 %, and by dry cows 53.2 % of total time. The average aggression in the group after calving reached a value 3.67 per one cow. In the group of dairy cows in the mating period increased aggressiveness on 4.68. In the group of heavily pregnant dairy cows fell the average to 0.33 and nearly the same was in the group of dry cows (0.38). The incidence of comfort behaviour in a group of cows after calving was for one cow 11.08. In the group of inseminated cows decreased significantly to 3.78. Other decrease was observed within the group of heavily pregnant dairy cows and by the group of dry cows too (1.44 or 1.28 per one dairy cow).
32

Analýza chovu masného stáda plemene charolais s ohledem na welfare zvířat / The analysis of the beef breed charolais with the regard to the animal welfare

VRCHOTOVÁ, Klára January 2007 (has links)
The aim of this work was evaluate the productive indexes and appreciate the behaviour of beef cattle dams reared in the system of breeding cows without market milk production. The analysis of the beef herd was performed in the agricultural company farming in above sea level altitude 650 meters. Through the years 2001 - 2006 was evaluated reproduction indexes by dams of basic herd and calves growth ability. Ethological monitoring was important for appreciation welfare conditions of breeding. Monitoring went ahead in single yearly periods in luminous parts of the day. Tracked group formed 31 pieces of dams, calves and sire.
33

Vliv robotizovaného dojení na chování plemenic skotu / Effect of robotic milking on the behavior of breeding cows

BLÁHOVÁ, Lucie January 2011 (has links)
With increasing consumption of milk and milk products, there were increased number of dairy cattle, but the increase of demand for dairy cows and thus to changes in technology and technique of milking, which would increase milk production, productivity, and improve the welfare of dairy cows. An efficient solution could be milking robots. The first robot was placed on a farm in the Netherlands in 1992. The introduction of robotic milking on agricultural farms in the Czech Republic began in 2003 when the main reason was a shortage of skilled manpower that would be willing to work in harsh working and sanitary conditions. The thesis aim was to assess the effect of milking by the milking robot on the behavior of breeding cows throughout the day in relation to milk yield and fertility in relation to lactation and genotypic classification (H100, HxC, C100). The behavioral monitoring was carried out in dairy farms Brloh (milking by milking robots) and Haklových Dvorech - the control group (in the milking house) in the period from August 2009 to January 2010. The data processing was done with using the Microsoft Excel program. For the evaluation of all parameters were observed in herds calculated basic statistics. Differences disappear individual indicators were evaluated single-factor analysis of variance. The first monitoring of the findings in cattle reproductive performance was the terms of genotype. The values were found favorable for fertility groups HxC in the both stables. Length insemination interval reached 69.1 days in ZD Brloh (compared to 110.1 of the ŠZP Haklovy Dvory), length of service period of 110.8 (vs. 142.9 days). In the meantime, the length (due to differences in the number of animals in the group) was a length of 409.5 versus 438.5 in the group of breeding cows milked in a milking house (ŠZP Haklovy dvory). Further indicators of fertility were evaluated in terms of lactation. The longest length of service period was recorded at 1st lactation in ŠZP Haklovy Dvory were 176 days. The shortest service period was found at the 3rd and subsequent lactations of 133.5 days. Insemination interval, indicating the search of breeding cows, which were in a rutting season, was roughly the same at all lactation ZD Brloh (range 72.7 to 78.2 days) for the ŠZP Haklovy Dvory was the longest period of time to 2 lactation (118.9 days). In terms of breeding cows for milk yield for each lactation cows achieve greater results in the production company with robotic milking (100 days - 3539.1 kg, 200 days - 6727.5 kg of milk 305 days - 9602.9 kg of milk). Compared to the control group, where a 100 days lactation cows milked 3240.06 kg of milk 200 days produced 5433 kg to 305 of milk and 5327.18 kg of milk daily. The behavioral surveillance in both companies was carried out for 24 hours using the interval method with a 10 minutes interval period. The largest part of the day the cows were lying. The second largest dairy operations were the category of standing, which represented the average length of 6.05 hours in ZD Brloh. In the ŠZP Haklovy Dvory was the time period 5.71 hours. The significant period between groups is also the time of feeding, which in the system with the milking in milking house is much shorter by 1.79 hours and it taken 3.71 hours. The length of the movement was in the milking house more than half the size shorter and was 0.32 hours. Also, the length of staying in the milking house was about half shorter and it was 0.22 hours.
34

MATEŘSKÉ CHOVÁNÍ OVCÍ / ANALYSIS OF MATERNAL BEHAVIOUR IN SHEEP

JINDROVÁ, Miloslava January 2010 (has links)
Ethological observation of maternal sheep behaviour took place over the year 2009, particularly in spring and autumn. Direct observation was chosen as the monitoring method. The values obtained were recorded in special ethograms. In total, 30 parturition of the valachian sheep were observed.
35

Rymešová, Pavla January 1994 (has links)
No description available.
36

Etogramy obratlovců ve výuce biologie / Vertebrate ethograms for secondary schools

Peřka, Jaroslav January 2015 (has links)
The aim of this thesis is to create an educational programme for teaching ethology at grammar schools, in which theoretical knowledge will be directly linked with practical activities. To fulfil the goals of this ethological educational programme there is used the creation of ethograms.The whole educational programme is divided into three parts. In the first part pupils are acquainted with the theory of ethology and individual types of animal behaviour and also with the principles of direct observation of animals, the creation of ethological records and their evaluation. In the second part pupils observe directly a chosen animal in zoological gardens or similar institutions and on the basis of their obtained theoretical knowledge they describe its behaviour to previously prepared forms. In the third part pupils create ethograms of vertebrates based on the gained data, which are part of an expert seminar paper in a form of an expert text, a power-point presentation or a poster. In these papers pupils keep the basic format and content rules for ethogram creation.To determine the suitability, adequacy and benefits of this educational programme there is used the evaluation of the output papers created by pupils, a questionnaire and the findings acquired from the realization of the whole programme. The...
37

Sledování sociálního chování u morčat v modelové situaci

ELIÁŠ, Zdeněk January 2019 (has links)
The aim of this work was to find out the social behaviour and interactions among the established group of guinea pigs (Cavia aperea var. porcellus) and the newly assembled groups, with each group being monitored three times, always for 24 hours. A total of 12 short-haired guinea pigs of smooth coat breed with balanced age distribution, divided into three groups, were monitored. The behaviour and activities of guinea pigs were recorded on a camcorder followed with subsequent evaluation of video recordings by means of ethograms and verbal description. Among monitored and evaluated activities were rest and sleep, feed and water intake, comfort behaviour, movement and conflict. In guinea pigs, there were proven differences in behaviour for all of the activities monitored. The individuality of individuals and their different behaviours manifested themselves, with each of them behaving a little bit differently from the others. By comparing the groups, significant differences in behaviour were found. Each individual behaved a little bit differently, but the same pattern of behaviour was not repeated among the groups. Also, it was found that the number of conflicts among guinea pigs decrease overtime for which the guinea pigs are together.
38

Vliv teploty vzduchu ve vazné stelivové stáji na chování dojnic

Hladíková, Michala January 2014 (has links)
This thesis deals with the behavior of dairy cows in the stable binding litter depending on the internal temperature of the stable order of lactation , milk production and udder . At the time of observation was recorded every hour position cows - standing , lying on the left or right side . When observations were also measured air temperature , as a major influence on the behavior of dairy cows. The observations took place in 2013 from the month of July to December , twice each month. A total of 12 observations took place . Observation was carried out in the same place as when undergraduate work, four-row barn type K174 breeding cows of Holstein cattle in the farm production cooperative Mezilesí Krakovany. The observed values were then processed with the measured temperature data from monitoring performance , with data on the state of the mammary gland and evaluated in Excel 2007, and the 10th Statictica cz During the evaluation , there were no significant value , which would affect the behavior of dairy cows . The cows were found is in the range of optimum temperature . The effect of lactation on standing and lying cows , showed only performing more frequent lying down and getting up in dairy cows at first lactation. Udder on dairy cow behavior was demonstrated. Show only the preference of the left side while lying down.
39

Sledování etologických projevů dojnic v závislosti na technologii ustájení za účelem vývoje čidel vyhodnocujících různé pohyby zvířat / Monitoring of etological expression of dairy cows in dependence on technology of stabling for role of evolution of detectors which evaluate various movements of animals

KINDLOVÁ, Jana January 2015 (has links)
Breeding of cattle is one of the most important industry of animal production in the Czech republic. These animals are used mainly for production of meat and milk. The aim of this diploma thesis was to gather basic datas about etological expressions of breeding dairy cows in the relationship to the used technologies of milking by using detectors of automatical scanning of movements and to formulate conclusions coming from these surveys. I monitored in three agricultural companies etological expressions of chosen dairy cows to the focus on their movement activities connected to the different technologies of milking. Etological monitoring helped to specify the scanning system of movements, which was installed in the companies. There were chosen total of 18 dairy cows of Holstein Friesian dairy cows, reproduction condition was various. The cows were in all phases of gravidity, some were just after birth. The observation was going on constantly for 24 hours, in various temperature conditions and different milking technique. The results were compared with literature and the aim was to find, by which system of milking are the animals happiest and how the welfare is accomplished.
40

Rizika vyplývající z kontaktu žáků 1. stupně s živočichy a jejich prevence prostřednictvím vybraných tématických celků obsažených v RVP. / Risks resulting from contact of primary school pupils with animals and their prevention through selected thematic areas contained in the RVP

PAVLÍKOVÁ, Jana January 2015 (has links)
The main tasks of this thesis are a mapping of the occurrence of the topic prevention of risks arising from encounters with animals in textbooks for primary scholars, a detection levels of scholar´s knowledge in this field, a creation of a tutorial on this topic and a testing of this tutorial. The survey has shown that scholars have got only shallow theoretical knowledge about the way how to deal safely with common domesticated animals as dogs and cats, they have got almost no experience with bigger farm animals (as pigs, cows, horses). The survey has shown that after completing the tutorial the scholar´s knowledge has become much deeper. There is very low rate of this topic in textbooks for the educational area The Man and his World. The domesticated animals (especially dogs) are presented as a thoroughly good, the scholars are not warned of the possible risks during the meeting with this animals. This thesis was created as part of the GAJU 078/2013/S project.

Page generated in 0.0675 seconds