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Vliv hladiny dusíkatých látek na parametry užitkovosti u brojlerů
Schäffer, Róbert
The aim of my work was to determine the influence of a higher content of nitrogenous substances in feedstuff on the growth, the quality of butcher-adapted body and the quality of the chicken's liver. The experiment comprised of 205 chickens of a hybrid combination ROSS 308. The chickens were divided into three groups. From the 14th day of age each of the groups was given food with a different amount of nitrogenous substances -- 20 %, 21 % and 22 %. This experiment was carried out on a farm in Čáčov and it lasted until the age of 42 days. Our trial proved that the best growth was recorded in the group with the 20 % content of nitrogenous substances (P<0,05). On the other hand, the worst feedstuff conversion was noticed in the chickens which got feed with the 22 % content of NL. Statistically provable difference (P<0,05) was also demonstrated in the weight of butcher-adapted bodies with cibarious giblets in the NL20 and NL21 groups compared with the NL22 group. The content of dry mass in the breast muscle was statistically provable (P<0,05) higher in the NL20 group compared with the NL22 group. The level of NL had no influence on the content of abdominal fat and the fat in liver. Statistically provable (P<0,05) higher was the amount of L* in the NL22 group in comparison with the NL 20 group and that happened in both cases meaning the liver in the NL22 was darker
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Analysis of the production of broiler chickens on the farm Agro Čejetice
RIŠKOVÁ, Martina
Production of poultry meat in the Republic and in the world has upward trend. This is primarily due to the highly fattening ability, reproductive short interval, dietetic properties of meat and good efficiency of conversion of feed nutrients. Every year across the European Union is produced about 9,6 billion broiler chickens. Broiler chicknes are specialized type of chicken bred and consume for meat. In a global comparison of the largest share of the production of poultry meat is provided by the United States and countries of the European Union. Czech Republic belongs to the volume of production to less dynamically developing countries. Chicken meat is cheaper than the other kinds of meat and this has significantly increased its market share. This is due to the fact that chicken meat contains many valuable protein and its cuisine is very simple. The subject of the master thesis was to evaluate selected influences on increment of broiler chickens in the farm Agro Čejetice s.r.o. in a time sequence of five years (2008-2012). The thesis was focused on the index calculation and observation of the effectiveness of the fattening period during each batch and on detailed observation of growths and loss in each of the locations. Also on the consumption of KKS and link to average selling weight of chicks.
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Analysis of the production of broiler chickens on the farm Agro Čejetice
RIŠKOVÁ, Martina
Production of poultry meat in the Republic and in the world has upward trend. This is primarily due to the highly fattening ability, reproductive short interval, dietetic properties of meat, good efficiency of conversion of feed nutrients and by independences food production of soil. Every year across the European Union is produced about 5.9 billion broiler chickens. The subject of my bachelor´s dissertation was to develop a literature search and analysis of broiler production in the farm Čejetice Agro Ltd. Collection of input data was realised in chronological period of 3 years (2008-2010). The dissertation is focused on the gains of broiler chickens and the consumption of complete feed in this company.
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