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  • 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.
41

Hlukové emise v chovu prasnic

DVOŘÁK, Hynek January 2016 (has links)
This thesis focuses on the noise pollution in sow farming. The first part of the thesis theoretically examines topics concerning noise, sow farming and a proper agricultural practice. The other part of the thesis introduces the aim of the work, describes the measuring technology, the locations objects and the method of the whole measuring process. The obtained values are later on shown in the form of graphs and compared with the hygienic limits. With the occurrence of any violation of these limits, an anti-noise action is suggested.
42

Analýza výrobních a ekonomických ukazatelů při odchovu selat

DVOŘÁKOVÁ, Lenka January 2017 (has links)
The aim of this thesis was to evaluate the reproductive performance of sows corporate program Czech PIC in a commercial breeding Ratiboř, Agricultural Cooperative Chyšky district Písek. The observed breeding herd was formed on December 31, 2016 with 119 sows and gilts. To evaluate the reproductive performance, the breeding-cows were divided into breeding sows inseminated and not inseminated, sow for 1st to 2nd litters (risk litters), 3rd to 5th litters (litter production) and for the 6th and higher. The breeding sows are frequently inseminated between 230th 269th day of life. In 2016, on average 25.2 live-born units were born per sow. The number of weaned piglets was at level of 21.8, it means the values were below the desired optimum. Good results were found in the length of intervening time (155.3 days), and the associated number of litters per sow. Sows reach 2.4 litters per year, and there is no problem with the beginning of rut after weaning. A rut mostly occurs on 4th and 5th day after weaning. The total cost for sows amounted to CZK 676,519.43 per year, when 1 kg of weaned pig costs CZK 53.75.
43

Zhodnocení reprodukčních ukazatelů prasnic a růstové intenzity prasat ve výkrmu

Pospíšilová, Pavlina January 2016 (has links)
This thesis is dealing with issues of reproductive markers in breeding of pigs at family farm. In literary part of thesis is described development in pigs stud all around the world, development in numerical quantity of pigs, reproduction in pigs stud, natural breeding and insemination, period of preparation for own delivery. As further also loss of piglets up to and after wean. Biological basis for growth intensity of pigs, evaluation of growth of pigs meant for slaughter. Diseases of pigs. Technological housing of pigs. In research part of thesis, we watched reproductive markers of sows as length of gravidity, number of born piglets, weight of piglets at the wean, mortality of piglets, average daily increase of piglets from birth till wean, total increase of piglets, milk production of sow, length of breast-feeding, period from wean to after service and length of service period. On basis of these data we found average number of born piglets, length of gravidity, average daily increases, influence of sow´s breeding, mortality of piglets according pig´s breed, watched influence of reproduction in chosen breed of sown, as further also influence of sow´s breed on growth intensity of piglets, influence of boar on number of born piglets and their growth, number of serviced sows, and if it´s influencing birth weight of piglets. We used statistical program STATISTICA 10.0 for evaluation of data in which we used data variation analysis to evaluate influence of monitored factors. HSD test was used for determination of provability amongst groups.
44

Analýza vlivů působících na reprodukční užitkovost prasnic / Analysis of the influences acting on the reproductive performance of sows

JANDOVÁ, Markéta January 2012 (has links)
The purpose of this dissertation is the evaluation of the fertility and the reproduction index of the sows in the breeding of the agricultural cooperative Lukavec. The herd of sows was divided into three groups according to age structure of the sows in the risk litter (litters 1 and 2), the sows in the production litters (litters 3 ? 5) and the sows in 6 and more litters. The reproduction process is influenced by a lot of impacts endogenous and exogenous.
45

Vliv výšky hřbetního tuku na reprodukci prasnic

NOVÁKOVÁ, Denisa January 2018 (has links)
The aim of the diploma thesis was to evaluate the impact of back fat height on sow reproduction parameters. The purpose of the practical part was to monitor the back fat height of sows measured one week before the delivery and one week before the weaning in connection with the number of piglets and with the futher use of sows being farmed (the pregnancy outcome, the length of the interim, the phasing out).
46

Vliv kondice prasnic na jejich následnou reprodukční užitkovost / Influence of condition sows on their subsequent reproductive performance

ŘEZNÍČKOVÁ, Lenka January 2011 (has links)
The aim was to assess the effect of condition of sows on subsequent reproductive performance. Fitness was assessed based on subjective evaluation using a five-point scale from 1 to 5. Rating condition was performed in a group of around 162 pieces by the current cast piglet always for the reproductive period before birth and before weaning, at intervals during 2009 and 2010. The company has been annually monitored and backfat thickness of sows selected for the period before birth and before weaning. The results of subjective assessment of condition of sows found that sows in the measured density reached an optimal condition in the range of 3,5 to 4 points. The best condition in sows before parturition was on the 3rd, 4th and 7 litter. Before weaning sows were fit from 2,5 to 3,5 points. In the period before weaning reached 450 sows condition 3 with an average of 13,14 pieces of piglets born to 10,21 piglets born alive. In assessing the data on the height of back fat measured now been found that the examined sows ranged average amount of fat in the range of optimum condition for each reproductive period before parturition 19,85 mm, 16,52 mm before weaning, and the difference was 3,33 mm. The statistics were revealed in the amount of fat before birth dependent on the number of piglets (p=0.02), which is statistically significant indicator. At the height of the fat before weaning (p=0.65), the relationship is statistically insignificant. The biggest statistical dependence (p=0.00) difference was found in fat, which tells us that with increasing height of fat before birth increases the amount of fat before weaning. In the last part of the data on the reproductive performance compared to those undertaking trade mark under the key ?reproduction?. It was found that the company has a prejty good level of breeding, despote some fluctuatins in farming losses as a percentage of piglets and sows pregnancy. The company reached the average (between 2008 and 2010) in weaned piglets per sow and year of 21,23 pc, live born piglets per sow and year of 25,37 pc at 2,33 litters per sow per year, but has a large loss of suckling piglets , an average of 10,32 % and 3,78 % rearing, the percentage of sows insemination was 80 % of the company, should be min. 85 %. Due to deteriorating indicators monitored the implementation of an enterprise for restocking.
47

STUDIUM VLIVŮ PŮSOBÍCÍCH V REPRODUKČNÍM PROCESU U PRASNIC SE ZVLÁŠTNÍM ZŘETELEM K PORODNÍMU OBDOBÍ

ZIMOLOVÁ, Barbora January 2016 (has links)
The aim of the thesis was to reveal reserves for improving the piglets breeding and to reduce losses by death. The highest number of all (13.52 pcs) and live born (11.88 pcs) piglets were achieved in gilts embedded in more than 247 days of age. Gilts covered within 224 days of age showed the lowest average number of piglets born (13.13 pcs). Statistically, however, has not been demonstrated difference (p > 0.05) between age groups of gilts during the first recess in the number of piglets born. Effect of order of litter on litter size was found to be statistically highly significant (p < 0.01), especially between the first and third parturition. The highest number of born piglets was found on the third litter (14.95 pcs) and lowest in the first litter (13.3 pcs). Most live piglets born were at the second litter (14.03 pcs) and least live born piglets were found on the 5th and higher litter (11.57 pcs). Among the number of piglets born alive in the individual litters was also evaluated statistically highly significant difference (p < 0.01). In assessing the impact on the duration of labor litter size was found to be a higher number of piglets born at night on average by 0.33 piglet more, but the number of piglets born alive was found higher in childbirth during the day (childbirth with assist). During statistical evaluation was not demonstrabled difference between the number of all even in the case of piglets born alive in viewpoint of the time of birth. From the perspective of the impact of the length of the interval from weaning to sows on litter size was found to be a higher number of all (14.83 pcs) and live (12.79 pcs) piglets born of sows recessed for more than 6 days after weaning. From the viewpoint of the impact sequence of litter for childbirth was detected statistically detectable difference (p > 0.05). In each of the litters was observed an average of 75 % births through the day. When evaluating the number of live births, depending on the number of piglets, born piglets showed a statistically highly significant relationship (p < 0.01) with high tightness on dependence (R = 0.83). Between the number of all born piglets and born alive was found a direct correlation.
48

Posouzení zdravotního stavu vybraného chovu prasat / Health assessment of the selected pig management

SKÁLOVÁ, Eva January 2012 (has links)
Aim of the thesis is to evaluate health in selected pig stock. Adherence to vaccination programs and good veterinary prevention principles, provision of appropriate stall, good care and feeding, piglets wean timing, selection of breeding animals, choosing of reliable personnel and other factors have great impact on health in pig stock. Considering above mentioned factors, the aim of the thesis was to asses health of sows, piglets and fattening pigs in chosen farm Ponědraž ltd. and asses influence of vaccination on production in time period 2010 to 2011. Further it was neccesary to asses observance of good hygiene praxis in enterprise, including using of hygiene loop by personnel and to find out, if the enterprise is equiped with systematic protection against infectious diseases. To evaluate stall by pig categories, animal welfare and positive influence on health and increase of pig production as a whole. Further to asses compliance with EU legislation. Aim of the thesis is to evaleuate new vaccination scheme against respirational diseases, it´s influence on increase of production and improving of healt in observed stock. In the end are all above mentioned requirements evaluated.
49

Přenos genetického potenciálu prasnic pro reprodukci do produkční sféry / Transfer of genetic potential for reproduction in sows production sector

NÝVLT, Vladimír January 2014 (has links)
The purpose of this thesis was to describe the transfer of genetic potential of sows in production sphere and evaluate concrete results in reproduction breeding sows Agricultural Society Kosova Hora. On large-scale farrowing sows were evaluated Doublovičky basic herd of sows, which consisted of 440 to 520 pieces. sows. The basic herd always has been about 35 nucleic sows (P 1065). The rest of the herd was an offspring of hybrids F1 (C 1023) program the PIC. The sows P 1065 were investigated causes selecting progeny namely: 1) For lack of development, which was evaluated from birth to breeding gilts adulthood. 2) The number and formation of the teats. For breeding were required to at least 12. They can not be crater, but well formed to have good piglets suck breast milk from them. 3) Reproduction in gilts were evaluated after conception periodic (cyclic) heat. The minimum requirement for the first 8 piglets which are born alive. For the basic herd was evaluated the age structure. It was incorporated into three groups and evaluated that, the largest selection of sows was for lack of milk production, limb injuries, poor breeding condition and the possibility of further embedding. The largest selection of sows takes place after the third to fifth lactation.
50

Analýza plodnosti prasnic ve vybraném chovu

KUBALOVÁ, Markéta January 2017 (has links)
The goal of the thesis was to analyze reproductive performance of sows in a selected breeding facility during a three-year period. 602 litters of the breed Czech Large White pig (CLW), 7 632 litters of the Czech Large White the Czech Landrace pig (CL) and 397 litters of the Czech Landrace Czech Large White were included in my observation. The average number of born piglets 15.43 was reached in the basic set of sows, out of which there were 14.25 live-born piglets. The highest number of all born piglets was found in CL CLW (16.25 pcs), followed by CLW (16.03 pcs) and CLW CL (15.34 pcs). The highest number of live-born piglets was found in CLW (14.51 pcs), then with a slight gap followed CL CLW (14.36 pcs) and the lowest number was found in CLW CL (14.22 pcs). The average age at first conception of sows was 235.7 days. Sows, younger than 229 days at first conception gave birth to 0.39 piglets more than sows of the age 230-250 days at first conception (13.42 or 13.03 piglets). The average gestation length was 115.7 days. More piglets were born to sows with gestation length shorter than 115 days, than to sows with gestation length 115 days and more (14.55 or 14.18). The difference of 0.37 piglets was statistically confirmed as highly relevant. The average length of weaning-to-conception interval was 5 days (4.97). More piglets (by 0.44) were born to sows that were serviced within 4 days after weaning, than to sows serviced within 5 and more days (15.03 or 14.58). The difference was confirmed as statistically highly relevant. The average length of farrowing interval was found 152.9 days. Sows were categorized into three groups based on this interval, 132145 days, 146-160 days and 161200 days. Most piglets were born to sows with farrowing interval 146160 days (14.58) and least to sows with farrowing interval 161200 days (14.51).

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