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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).
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Analýza vybraných užitkových parametrů prasat v podmínkách ekologického chovu
Klementová, Kateřina
This work deals with the analysis of useful methods in organic pig farming, in the first parts there is a literature review of the topic, which presents the basic principles of organic pig farming - feeding, stables. The literary wish is characterized by the Přeštice black-spotted pig breed. The second part thesis consists of monitoring the farm itself, where the analysis of useful data of the Přeštice black pied pig breed. In this part of the diploma thesis, the data of reproductive performance of sows are analyzed and statistically evaluated, then the growth ability of pigs from birth to slaughter is statistically suitable. At the end of the work, the evaluated data are presented, it is further proved that this is a reduction of problems and other measures for the development of organic farms and organic pig farming on this farm.
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Evaluation the utility of the Prestice Black-Pied
GUBERNÁTOVÁ, Pavla
The main objective of the bachelor´s thesis was to evaluate the reproductive utility properties of the Prestice black-pied of the breeding core bred in the company Žihelský statek, a.s. and compare these results with other breeds in the Czech Republic. The evaluations took place in the years 2018 and 2019. The main monitored characteristics were the number of all births of piglets, the number of live births of piglets, the number of surviving piglets and milk vield at 21 days of piglets´ age. Special attention was paid to the line represented by individual stallions. The literature review describes the history of the origin of the Prestice blackpied, the regeneration of the breed and its subsequent breeding of the landrace and pietrain breeds. The following target of the thesis was a description of the Prestice black-pied breed with its typical breeding traits, such as the typical black-spotted coloration without the definition of body parts and the tilted ear. The following issues were its utility properties, especially good reproduction and excellent maternal abilities. Finally, the preservation of the breed as a genetic resource has been described.
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Zhodnocení etologického pozorování přeštického černostrakatého prasete
Benýšková, Anna
The thesis is based on the ethological observation of prestice black-pied pig. In the first part of the thesis is described in details the discipline of ethology, its division and problems. The second part deals with the breed of prestice black-pied pig, describes the breed itself, its history, ways of breeding, its written about the body structure and the characteristic body features. The last part is focused corectly on the ethological observation of this breed in combined type of breeding. The life signs of gilts, sows and piglets are then shown in the graphs and summarized in the description
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Alternativní plemena prasat a možnosti jejich využití
Jandová, Eliška
The thesis deals with alternative breeds of pigs. Contemporary state of breeding and opportunities in development of pig races are described together with basic classification of pigs and defining alternative breeds of pigs, e.g. přeštice piebald pigs where the breed, characteristics, performance, meat quality and the risk of breeding this breed are described. Another alternative breeds: mangalica, originally from Hungary, original breeds from Poland, zlotnice piebald, white and pulawa are introduced with respect to characteristics of origin and appearance.
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The Analysis of Genetic Source of the Prestice Black-Pie Pig
HYŠPLEROVÁ, Klára
My thesis "The Analysis of the Genetic Source of the Prestice Black-Pie Pig" deals with the evaluation of the population of the Prestice Black-Pie pigs from the point of view of their numbers, the structure of their population and their reproductive qualities, using the data of the Association of Pig Breeders in Bohemia and Moravia. First the carcass value and meat quality of this original Czech meat bacon breed were evaluated and then a slaughter dissection and laboratory analyses of the meat from the analyzed group of pigs were done. The numbers of PBP pigs have increased significantly especially since 2012 and so has the number of the farms; however in many of them there are fewer than 10 PBP pigs. This is why the PBP pig breeding is rather fragmented and it is difficult to sustain sufficient genetic diversity of the closed population. This is also connected with unequal numbers of the 10 genealogical lines. The Akoga and Amperor lines were the most numerous. Since 2015 the numbers of pigs from different lines have been more balanced. In 2016 two sows from the renewed Apolon line, which had been born from a cryopreserved seed, were put in the farms. The influence of the line was evidential in the statistics: in reproduction as well in productive qualities. Therefore, to sustain sufficient genetic diversity in a small population we need to keep in the stock the maximum number of equally represented genealogical lines. A detailed analysis of reproductive indicators of the years 2013 - 2016 found 9.4 piglets born alive and 8.7 weaned piglets, the farrowing interval of 181 days, the average values of relevant indicators did not meet the requirements of the breeding objective; only one farm met them. Statistically speaking, there were significant differences between the individual farms. In bigger farms there were higher reproductive qualities. Between 1998 and 2016 the average daily gain in weight was 530 g for gilts, 578 g for boars, the muscle fibre ratio for gilts was 58.5 % and for boars 59.3 %, the back fat thickness was the same for both, 1.1 cm. The requirements of the breeding objective were met, except for the lower weight gain for gilts. The average daily weight gain between the years 2009 and 2013 for 577 gilts was 524 g, the average muscle fibre ratio was 59.1 % and the average back fat thickness was 1.03 cm; in all indicators there were statistically evidential differences between individual farms. In bigger farms the muscle fibre share was higher by 0.9 %. In a group of PBP pigs I studied the influence of slaughter weight and gender on carcass value. The statistics clearly showed that the bigger the slaughter weight was, the higher the back fat thickness was, and also the higher the weight of meat parts was, but the share of meat parts was reduced, and the area of MLLT increased, too. The slaughter weight had no influence on the muscle fibre share. The statistics also showed that with the increase in slaughter weight there was an increase in drip loss and the meat was tenderer. There was also a statistically inconclusive increase in intramuscular fat. The statistics also showed that the barrows in the analyzed group had a lot higher average daily gain, a statistically inconclusive higher back fat thickness, lower share of muscle fibre and a statistically conclusive lower share of ham and higher share of intramuscular fat. In the meat of the analyzed group of pigs I studied the content of fatty acids. There was a higher share of undersaturated fatty acids and a high share of n-6 PUFA:n-3 PUFA, which is not considered satisfactory from the nutritional viewpoint.
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