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Analýza vybrané ekologické farmy
Navrátilová, Iva
The aim of this diploma thesis was the analysis of organic farm AgroFyto spol. s.r.o., which deals with dairy cattle breeding and suckler cattle. In an analysis of selected indicators were evaluated for milk production, selected parameters of reproduction and meat production. The results of the system of classification of carcasses of SEUROP cattle were evaluated within the meat yield. The animals were monitored for the period 2014-2017. Values related to dairy yields and dairy reproduction were obtained from performance monitoring for 2015 and 2016. The individual years were divided into four seasons after three months. In this work was evaluated the effect meantime, the time of calving, lactation, breed and season on the amount of milk in the period, as well as the impact on the amount of milk fat and protein content of milk for the year 2015 to 2016. The analysis revealed a difference in the evidence of the effects on milk in the monitored period. Regarding the influence of milk volume on fat and protein content in milk, this effect has been demonstrated only in one of four seasons. In the analysis, the effect of the season on the amount of milk was not statistically proven. Compared to organic farm BEMAGRO a.s and foreign ecofarm, it was found that cattle on dairy farm AgroFyto spol. s.r.o. Better results in the quantity of milk in question over the reference period. Dairy Farmer FARMA ZPZ s.r.o. But they have a better milking. AgroFyto spol. s.r.o. Has a dairy with the lowest protein content in milk and the highest fat content compared to two organic farms. Compared to the overall results of the KU in the Czech Republic, AgroFyto spol. s.r.o. Lower milk yield, but higher fat in milk.
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Produkce jatečných zvířat v systému chovu skotu bez tržní produkce mléka
Zikan, Věra
This bachelors thesis is focused on slaghter beef Production within the system of cattle farming without market Production of milk. The work describes the essential characteristics of the rearing of suckler cows, the breeding methods, characteristics of the beef-cattle and their division. Goal of this procet work is to describe litetary overview about this farming system, which includes technology, equipment and organization of cattle farming CFWMMP. The work also deals with the control of performance. Thesis concerned on the importance of carcass classification system JUT and SEUROP. At the conclusion of the bachelors thesis I sketch topic of master's project – evaluation meat performance of specific breeds in selected farms with extensive fattening. After that I would like evaluate problematics and quality about pasture, then I would describe the nutritional properties of meat with quality deviations of meat.
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Effect of selected factors affecting the percentage of lean muscle in pig carcass
KOLÁŘOVÁ, Eva
The aim of the thesis was to obtain information on the effect of hybrid combination, gender and weight of cold JUT on carcass ratios in final pig hybrids. 1742 pig carcasses of four hybrid pig combinations were included in the carcass monitoring: PIC, Topigs, Danbred and France Hybrides. The average carcass weight was 89 kg with an average muscle mass of 59.5%, represented mostly by quality classes S and E. The higher fat content of pigs versus gilts was shown. With increasing slaughter weight, the proportion of muscle decreased and the proportion of fat increased.
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Produkční schopnost býků Českého strakatého skotu
LAPKOVÁ, Kristýna
The aim of this bachelor thesis was to evaluate selected indicators of fattened bulls of the Czech Pied Cattle in intensive farming conditions in a farm in the South Bohemian Region. The total rating was included 371 bulls, the data were evaluated for years 2016 and 2017. The live weight before slaughter, the age at slaughter, the average daily gain, net gain, carcase weight and his classification according to SEUROP. Statistical data was processed using the program Microsoft Excel 2016 and Statsoft statistica. The average age at slaughter and live weight were 586.2 days respectively 731.8 kg in 2016, in 2017 reached 626.1 days respectively. 749.5 kg. The weight of the carcase in 2016 was 412.2 kg, the following year increased by 8.9 kg. The net gain increase was significantly higher in 2016. All these differences were statistically significant. When categorized into classes of meatiness, it reached 73.8 % of the class "U" with a carcase weight of 426.3 kg, 25.1 % of the "R" class with a carcass weight of 384.4 kg and 1.1 % of the "E" with a carcass weight of 497.3 kg. When evaluating the impact of the slaughter age on the individual indicators, the differences between the groups were statistically significant.
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The effect of the operator on the accuracy of the estimates of lean meat share in pigs
Jiravová, Renata ; Šprysl, Michal (advisor) ; Libor , Libor (referee)
The aim of the study followed the determination of operator error, ie repeatability, or influence of the measuring point on the accuracy of the estimate of lean meat share (LMP). It was a FOM-SFK instrument measured at prescribed locations the backfat thickness, muscle depth, and thus their LMP in their carcass realization in SEUROP system. For this purpose a total of 71 hybrid pigs (Dan-Bred) were measured at the Velvary slaughterhouse. In order to determine the error from incorrectly determined place of measurement, the following six classification insertions were done per one animal, thus 1. 2nd -- 3rd last rib 7 cm off the midline (right point), 2. 2nd -- 3rd last rib 7 cm off the midline (repeat in the same hole), 3. 2nd -- 3rd last rib 1 cm caudal to the right point, 4. 2nd -- 3rd last rib 1 cm cranial to the right point, 5. 3rd -- 4th last rib 1 cm medial to the right point, 6. 1st --2nd last rib 1 cm lateral to the right point. Measurements were performed on the carcass that insertion 2 should be identical with insertion 1, insertions 3 and 4 were moved 1 cm off insertion 1 in the cranial or caudal direction and insertions 5 and 6 were moved by 1 rib from insertion 1 in the cranial or caudal direction respectively. Classification was held by FOM instrument, for further comparison also by ZP method. For the above classifications following regression equations were used. For: - FOM y= 81,8909+0,2006*M+14,1911*ln S, kde M=MLLT depth, S =backfat thickness, - ZP y= 76,6722--1,0485*M+0,00794*M2--0,002884*S2+9,0151*ln (M/S), kde M = MLLT depth, S= backfat thickness. Calculation and comparison of the results was performed by statistical program SAS Propriety Software Release 6.04, differences were tested by analysis of variance. Based on the results we can say that a given hypothesis was confirmed. Also, in the realization of slaughter pigs in SEUROP system can be stated that - by invasive technique FOM - precise LMP determination of the carcass is a function of the need for precise determination of the puncture site of operator, - accuracy of the backfat thickness as well as LMP estimate is affected by repeated punctures, - more reliably is measured the backfat thickness with repeated injection than the muscle depth due to its possible deformation, - inaccuracy of repeated measurements (repeatability) will not significantly affect the carcass classification into classes at the slaughterhouse; any errors will occur to the detriment of the supplier, - the injection shift 1 rib cranially respectively caudally affect the overall carcass classification more than shift the injection 1 cm medially or laterally away from the spine, - in the case of an unsuccessful measurement the best is to repeat the puncture or the second puncture shift 1 cm caudal or repeat puncture between the 2nd and the 3rd thoracic vertebra 1 cm towards the spine, - non-invasive technique ZP, compared to FOM, underestimates the LMP estimate by about 1,4%.
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Vyhodnocení kvality jatečně upraveného těla a masa býků českého strakatého plemene skotu s genotypem TT a CT pro leptin
Večerek, Lukáš
The Master's thesis was focused on the estimation of the quality of carcasses and meat of bulls from the Czech fleckvieh cattle with the genotype TT and CT for leptin. The experiment was carried out on 121 slaughter modified bodies. The effect of slaughter age of bulls, the slaughter weight, the "nett" increment and the classifica-tion in the SEUROP system was analyzed. Within the frame of morphometric analysis were provably (p < 0,01) the highest proportions almost in all of the analyzed parts (leg length, leg plenitude, leg circumfer-ence, leg spiral circumference, forequarter length and thorax semi circuit) ascertained by the bulls of the highest age and weight categories (aged 701 -- 822 days or life weight 701 -- 890 kg). A positive correlation was discovered between the class of conformation assessed by the SEUROP methodology and JUT weight when by the deteriorating class of conformation "U" > "R" > "O" was the weight of carcasses (428 > 341 > 294 kg) declining. The lowest content of meat (72,54 +- 2,53 %) with the highest content of separable tallow (10,22 +- 3,24 %) was proved on slaughter bodies of bulls of the highest weight category which is not good especially for the meat processor. The greatest per-cent of dry meat (26,08 %) was provably (p < 0,01) found by the bulls that are most intensively growing, whereas this category of bulls also reaches the highest qualities in the parameter of meat energy value (5797,13 kJ.kg-1). The technologic parameters were provably not influenced by the levels of evaluated factors although some exceptions appeared. The statistically evidential (p < 0,01) differences were noticeable in the size of the area musculus longissimus et thoracis (MLT) when the greatest area MLT (104,24 +- 11,03 cm2) was stated by the bulls slaughtered in the highest age (701 -- 822 days), whereas the strength of muscular fibers was by all three age categories comparable.
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The comparison of the results of fattening bulls of different breeds under the same conditions
KUBALOVÁ, Markéta
Cattle husbandryhas a long tradition in the Czech Republic agriculture.Husbandry of dairy cattle is being replaced by husbandry of beef breeds andits count has been increasing in recent years. Approximately 191 thousand of suckler cow was kept on 1st April 2014 according toCzech Statistical Office. The aim of this bachelor thesis was to analyse beef performance of fattening beef breeds, specifically crossbreds of charolais and piemontese breed, where asconditions under which fattening happened were same. The evaluation of chosen performance traits was carried out on 44 crossbreds from Old Town farm located near city of Frýdek-Místek. Groups of bulls were created according to the breed and year of slaughter. The slaughter age, live weight, carcass weight, net gain, average daily gain, and SEUROP system classification into meatiness and fat cover classes. Data were analysed using Microsoft Excel and StatsoftStatistica. T-test was used to assess significance of differences. The slaughter weight of charolais crossbreds was 636.97 (slaughter age 728.91 days), with piemontese crossbreds 639.17 kg (slaughter age 736.52 days). Minimal difference was found at carcass weight (357.85 kg in charolais, 359.08 kg in piemontese respectively). Average daily gains were also balanced 818.61 g (charolais) and 814.86 g (piemontese). Net gain difference was also low, net gain of charolais crossbreds was 490.74 g per day respectively 488.31 g per day within group of piemontese crossbreds. Differences between breeds were not statistically significant. The difference between slaughter year (2013 and 2014) was also assessed but it was not significant too. Carcass classification according to SEUROP system was in case of charolais crossbreds most often in class R (75 %), while piemontese crossbreds were mostly classified into class R (54.55 %) and U (45.45 %) in 2013. In 2014, carcass of charolais crossbreds was most often in class U (45.45 %) and E (36.36 %), carcass of piemontese in class E (30 %), U (40 %) and R (30 %). Fatness classification within two years of observation was, in all cases, into class 1. Findings did not show that under the certain conditions there were no differences between charolais and piemontese crossbreds. The difference in evaluated traits between years 2013 and 2014 within those breeds was also not confirmed which points out constancy of husbandry condition. The important thing for farmer is carcass classification according to SEUROP system and results show that piemontese crossbred carcasses are favourably classified.
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The influence of slaughter weight and sex on carcass of pigs.
VONDRUŠKA, Miroslav
The aim of this thesis was to obtain information on the genotype and sex influence on carcass characteristics of pigs of the following final hybrids combinations: (CL x CLW) x CLW ? sire line, (CL x CLW) x (CLW ? sire line x Pn), (CL x CLW) x (D x Pn) and (CL x CLW) x (CLW ? sire line x D) with a balanced sex ratio (barrows: gilts). An influence of the genotype on the lean meat content has been proven, while the (CL x CLW) x (D x Pn) combination reached the highest values, with an average of 57.95 %. A statistical significance of differences was also found between the sexes, when gilts reached 58.06 % average lean meat content, compared to the barrows 54.70 % average lean meat content (3.36 % difference). The back fat thickness showed a high statistical significance in terms of genotype, the lowest back fat thickness was measured in the (CL x CLW) x (D x Pn) combination with value of 21.69 mm. Barrows reached higher values, the average height of gilts was 22.03 mm, 25.25 mm in barrows. In the loin eye area indicator, the genotype influence has not been proven. For gilts, the mean value of 5228 mm2, in barrows value of 4707 mm2. Content of main meat parts, or more precisely hams, presented statistically significant differences in terms of genotype. The (CL x CLW) x (D x Pn) combination reached the highest values, with content of 53.23 %, 21.9 % respectively. A significant statistical difference was determined also between sexes, with an average main meat parts of gilts and barrows 51.32 % and 48.45 %, respectively; in the case of ham 21.07 % and 19.98 %. The slaughter weight in relation to the lean meat content showed a very good value in the mass range less than 100 kg (57.84 %), but the muscle proportion 57.16 % has been positive even in the mass range 100 ? 109.9 kg.
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