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Vliv pohlaví na produkční znaky hybridů kachny pekingské
KOSTRŮNKOVÁ, Gabriela
The aim of the master thesis was to compare the performance traits of Pekin duck - three hybrid combinations - Cherry Valley, Orvia and Grimaud that were fed to the age of 44 days. The test was performed by the International Poultry Testing Station in Ústrašice. The methodology was based on the guidelines for the implementation of poultry performance testing. Hybrid Cherry Valley achieved the highest fertility of hatching eggs (96%), weight of hatching eggs (88,1 g), live weight at age of 1, 21, 35 and 44 days (age of 44 days - 3 315 g), average daily weight gain (74,1 g), carcass weight (2 217 g) and weight of the breast muscles with skin (636 g). Hybrid Orvia showed the lowest feed conversion ratio ((2 165 g/1 kg of weight gain) and mortality and the highest weight of leg muscle with skin (551 g). Drakes showed higher live weight, average daily weight gain, weight of the breast and leg muscles with skin and lower weight of abdominal fat .
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Hodnocení užitkových vlastností potomstva brojlerových slepic
MASÁROVÁ, Anna
The aim of the diploma thesis was to evaluate the performance of commercial broiler chicken genotypes Ross 308, Cobb 500 and Hubbard F15. Parental test consisted of parent rearing up to the age of 22 weeks, the laying period up to the age of 62 weeks and from fattening progeny tests (lasting for 35 days or else 42 days). Hybrid Ross 308 chickens reached the highest live weight at the end of the rearing period. Hubbard F15 chickens had the lowest feed consumption per head and day and also the lowest mortality rate. Hybrid Hubbard F15 showed the highest number of hatched chickens per 1 laying hen (137.2 pcs), the lowest feed consumption per head and day (149.4 g) and the highest fertility of hatching eggs (9,2 %). Hybrid Ross 308 showed the highest weight of hatching eggs and live weight at the end of the laying period (cockerels 5 029 g, pullets 4 310 g). Cobb 500 cockerels (2 397 g) and Hubbard F 15 pullets (2 145 g) showed the highest live weight during the 35 day fattening period. The highest breast weight was at the hybrid Cobb 500 (516.9 g) and the thighs weight was the highest at Hubbard F15 (511.9 g). The highest carcass yield was observed at hybrid Cobb 500 (76.30%). During the extended fattening period of 42 days had the highest live weight cockerels Ross 308 (3 096 g), Cobb 500 and Hubbard F15 pullets (2 688 g and 2 682 g). The highest breast weight was observed at hybrid Ross 308 (697.0 g) and thighs weight at hybrid Hubbard F15 (707.6 g). The highest carcass yield was at hybrid Hubbard F15 (78.0%).
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Analýza užitkovosti pižmovky
BLÁHOVÁ, Kateřina
Analysis of performance of the Muscovy duck was done based on the results of fattening test carried out by the state enterprise the International Poultry Testing Station in Ústrašice. Ducks (300 pcs) were fed to the age of 70 days and drakes to the age of 84 days. The weight of both ducks and drakes on the 1st day was 50.2 g. On the 21st day the ducks weight 595 g and drakes 621 g (126 g difference). At 49 days of age the weight of the ducks was 1 802 g and the weight of the drakes was 2 589 g (902 g difference). At 70 days the weight of ducks was 2 328 g and at 84 days the weight of drakes was 4 424 g. The average daily gain was 37.7 g for ducks and 58.8 g for drakes (20.3 g difference). The feed consumption required for 1 kg gain was 3 120 g for ducks and 2 970 g for drakes (150 g difference). During the test, only 1 duck died at 55th day of the fattening due to the motion apparatus disease. 20 ducks and 20 drakes were selected for slaughter performance test. The percentage of abdominal fat was 2.8% for ducks and 2.1% for drakes. The slaughter yield was 73.8% for ducks and 73.0% for drakes. The carcass weight was found to be 1 918 g for ducks and 3 462 g for drakes (difference 1.544 g, P < 0.001). The weight of breast muscles with skin was 581 g for ducks and 1046 g for drakes (difference 465 g, P < 0.01). The weight of thigh muscle with skin was 359 g in ducks and 654 g in drakes (difference 295 g, P < 0.001).
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Porovnání užitkovosti hybridů kachny pekingské
KOSTRŮNKOVÁ, Gabriela
The aim of the bachelor thesis was to evaluate performance parameters for hybrid combinations of the Pekin duck hybrid Orvia, Grimaud and Cherry Valley. The tests were made by International Poultry Testing Station in Ústrašice. Test was consisted of fattening progeny tests lasting 44 days. Hybrid Cherry Valley achieved the highest live weight at 44 days of age (3 315 g) and the highest average daily gain (74.1 g) too. Hybrid Orvia showed the lowest feed consumption per 1 kilogram gain (2 164 g) and the lowest mortality (2.5 %). The highest live weight at 44 days of age (3 331 g), the highest carcass weight (2 160 g), the highest weight of giblets (323.7 g) and the highest breast muscle weightwith skin was confirmed at hybrid Cherry Valley.The lowest weight of abdominal fat (32.8 g) was observed at hybrid Cherry Valley too. Hybrid Orvia achieved the highest leg muscle weight with skin (534.8 g). Hybrid Cherry Valley showed only about 9.7 g lower leg muscle weight (525.1 g).
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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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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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