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Analysis of use characteristics of slow growing chicken hybrid
DUPAL, Jan
The main aim of the diploma thesis was to analyze the use characteristics of chicken hybrids with slow growth rate. Following hybrids were analyzed: combination of JA 757, who were fed until 49 days of their age and combination of Pac JA with feed length of 56 days. The average live weight of hybrid combination JA 757 was 2 169 g, the feed consumption per kg of weight gain averaged at 2 119 g and the selection rate reached 0.5%. The combination Pac JA reached live weight at slaughter date of 2 109 g, the feed consumption was 2 366 g and 0.88% chickens was selected. The value of Production Efficiency Factor was higher for the hybrid JA 757 (208) compared with the hybrid Pac JA (158). It was found out that the carcass yield of the hybrid JA 757 was about 3.8% higher (74.7% vs. 70.9%) compared to the hybrid Pac JA. Similarly the weight of the breast muscles reached the weight of 405 g in case of the JA 757 which was 53 g more than in case of the Pac JA (352 g). The leg muscle difference was 132 g in favor of the JA 757 (499 g vs. 367 g) while the weight of abdominal fat was lower by 5.5 g (44 vs. 49.5 g). Therefore it can be stated that the difference was statistically highly significant. Furthermore it was found out that cocks reached higher breast and leg muscle weight than hens of both hybrids. The difference was 33 g and 106 g for JA 757 hybrids and 57 g and 79 g for Pac JA hybrids respectively. Also here the difference was statistically highly significant and statistically significant respectively. Overall the hybrid JA 757 proved to have higher genetic potential in intensity growth and also in carcass utility.
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Výkrm prasat s využitím netradičních přídavků do krmné dávky
Štoksa, Jiří
The aim of diploma paper was evaluate the characteristics of fattening performance and carcass quality in fattening pigs with using the supplement of 10 % crunchies to the feed ration. The experimental group consisted of 60 pigs versus 60 pigs in the control group. In the experimental group were 27 barrows and 34 gilts. In the control group there were 33 barrows and 26 gilts. In each group of pigs was evaluated average live weight achieved before slaughter (kg), the average weight of the cold (kg), % of lean meat (%), backfat thickness (mm), MLLT muscle depth (mm) and average daily gain (g/day). Also evaluated was the compound feed consumption (kg/day) , the conversion of nutrients per kilogram of weight gain (kg/kg). Best of average daily gains were achieved in experimental file (761 g/pcs/day ), in the control group was average daily gain (751 g/pcs/day). The data were statistically evaluated as insignificant. Percent of lean meat showed the highest level of the experimental group of pigs and 56,35 %, control group of pigs was 55,71 % lean meat. The difference was evaluated statistical methods as insignificant. The consumption of feed mixture was in the experimental group of pigs 2,79 kg/pcs/day, in the control group was slightly lower 2,72 kg/pcs/day. The conversion of nutrients in the experimental group was barrows 3,41 kg/kg of weight gain, in group gilts 3,89 kg/kg of weight gain. In the control group of barrows was value conversion of nutrients 3,57 kg/kg of weight gain and gilts 3,69 kg/kg of weight gain.
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Indicators of the egg yield and of the fattening in the geese breeding
KULHAN, Petr
The aim of the thesis was to elaborate a literature search about utility characters of geese and to analyse a basic statistical indicators selected indicators of egg yield and of fattening performance in the selection breeding of geese, with a view to selection and to inbreed in the Czech Republic, to the conditions for certification of selection breeding, including the purpose and mission of this breeding. Geese breeding and its technology, domestic geese properties and factors, which affect them, are described further in this work. Attention was also paid to veterinary monitoring and to care of geese breeding.
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Comparison of the performance of the parental combination of geese ESKILDSEN SCHWER and their progeny during three laying cycles
ZIGÁČEK, Ladislav
Abstract The aim of the bachelor thesis was to compare the production traits of goose parental combination ESKILDSEN SCHWER and their progeny obtaining from the poultry performance testing during three laying cycles. The tests were made by International Poultry Testing Station in Ústrašice and methodology was based on the guidelines for the implementation of poultry performance testing. Parental test consisted of rearing parents until the age of 210 days, the laying preparation period of 211?285 days, the rearing period at duration 160 days and from two fattening progeny tests lasting for 56 and 112 days. Higher live weight at 1 day, 56 day and 210 days of age during parental test was found out at gangers compare to geese. The higher number of eggs in the initial stage (66.3 eggs) and number of hatched goslings (46.4 heads) were found out at two-year-old geese. The above-average temperatures in May caused premature drop of lying at three-year-old geese. The highest breast muscle weight (430 g) at 1st fattening progeny test at 56 days of age was at three-year old geese. It was only about 14 g higher in comparison with progeny of two-year-old geese and about 30 g higher in comparison with one-year-old geese. The highest weight of breast muscle was found out at three-year-old geese at the 2nd fattening progeny test too (493 g), followed by progeny of two-year-old geese and one-year-old geese. The highest weight of breast muscle (671 g) was found out at 112 days of age at the 1st fattening progeny test at three-year-old geese. The lowest weight was at progeny of two-year-old geese. The highest breast muscle weight (746 g) was achieved at progeny of three-year-old geese at the 2nd fattening progeny test. They were followed by one-year-old geese and two-year-old geese.
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Results of meat performance in bulls of various genotype
ŠIMÁK LÍBALOVÁ, Kristýna
A growing number of pure-bred herds of beef breeds began to grow a herd of cows with a dual-purpose efficiency type, farmers often use their crosses with beef breeds of cattle to increase their meat performance. The aim of this diploma work was to analyse results of fattening ability and carcass value of Czech Pied Cattle bulls (C) and their crosses with beef breeds. In evaluation selected indicators were included 907 slaughtered bulls dividing according their genotype. The software programs Microsoft Excel and Statistica has been used for processing calculations and the statistic data. An important indicator is achieved dressed carcass weight (DCW), which was highest in bulls Meat Siemental (SI) 370.1 kg, Aberdeen Angus (G) 359.0 kg and crossbreeds Charolais and Czech Pied Cattle (TxC) 354.2 kg. Lowest DCW had extensive breed Highland (E) and Galloway (W) 318.8 kg. The difference between SI and E + W was 51.3 kg and was highly statistically significant (P {$\leq$} 0.001). The group of TxC and TxH and breed Piemontese (P) had the highest intensity of growth, net gain was 671.5 g, resp. 669.6 g for T and crosses and 652.5 g for the breed P. The lowest average net gain was found in the breed G (531.3 g). The highest production of first quality meat was found in the breed P (55.6 kg), 55.4 kg was achieved in breed SI. At least meat I. grade was found in bulls of E and W (47.2 kg). Significant difference was found between SI and E + W at a significance level P {$\leq$} 0.001. Based on the results we can recommend commercial crossings Czech Pied cattle with bulls meat breed or breeding pure-bred beef breeds. It is important to take into account the specificity of each breed, its earliness and size of body frame in the choice of slaughter weight and age of fattening bulls, to avoid unwanted growth of fat in bulls, and to realize the slaughter weight trough the most intensive fattening.
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Influence selected factors on growth and carcass quality of fattening bulls
KOCINOVÁ, Marie
The aim of this study was to evaluate the influence selected factors on growth and carcass value of bulls fattened to slaughter weight in the reference herd of Czech Pied cattle breed and its crosses with meat breeds. A total of 70 pieces were observed among breeds of bulls, 32 bulls were of Czech Pied breed, 29 bulls of Czech Pied breed hybrid beef breeds bulls and 9 were crossbred beef cattle. Bulls for fattening were stopped at the age of 9-12 months and were fattened for around two years, 24 months of age.
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