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National Repository of Grey Literature

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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 . Detailed record

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). Detailed record

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