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Jatečná výtěžnost českého albína v porovnání s hybridním plemen králíků
ČERMÁK, Tomáš
The bachelor's thesis is focused on the comparison of the slaughter yield of rabbits in the conditions of small-scale farming and large-scale farming. The research part is devoted to issues related to the breeding and rearing of rabbits. In the following chapters, the factors influencing the slaughter yield, the breeding of hybrid rabbit breeds and the breeding of the Czech albino are characterized. The final part of the research specifies the composition of the basic feed ration and points out the possi-bilities of using different types of feed in large-scale and small-scale farming. The methodology of the bachelor's thesis compares the slaughter yield of Czech albino depending on the housing technology and the use of alfalfa addition to the complete feed mixture in a rabbit farm in comparison with the slaughter yield of Hyplus rabbits bred in a large farm in Kokořov.
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Vyhodnocení přírůstků a jatečné hodnoty králíků v malochovu
HAMPLOVÁ, Michaela
This bachelor thesis is dealing with the weight gains and slaughter yield of chosen meat breeds of rabbits in home breeding. Decisive factor for having a rabbit as a source of high-quality meat, fur and leather is mainly nourishment and feeding. The most suitable method is using of feeding mixture by categories. The main purpose of fattening is profit of rabbits ready for slaughter in the shortest time. Meat with the highest quality is obtaining from young animals that are slaughtered at the age of 3 to 4 months. Breeds that had the fastest progress were combination of Big Siamesen and Blue of Vienna with the fattening of 109 days. Rabbits of combination Californian and Blue of Vienna got to slaughter weight at the age of 123 days and the longest progress of fattening lasts for 137 days for the combination of Big Marten and Blue of Vienna. On the other side, it emerged that the most fertile female was Big Marten Rabbit that gave birth and reared the highest number of young animals. The average slaughter yield of all litters ranged between 52 to 58%. The best slaughter yield value reached rabbits of combination of Big Marten and Blue of Vienna that went up to 57.05%.
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Vyhodnocení masné užitkovosti králíků v drobnochovu
BOUCHALOVÁ, Kristýna
This bachelor thesis deals with the meat production of rabbits in home breeding in large breeds, the Checkered Giant rabbit and Flemish Giant rabbit. For comparison, the middle breed of the California rabbit was used. Small breeders are predominantly medium-sized rabbits for their very good cattle yield and short-term fattening. The most important thing for fattening is to achieve mature maturity in the shortest possible time. In our experiment, the Californian rabbit fattening took 149 days and the average slaughter weight was 3144g. In Checkered Giant rabbit took 171 days and for the Flemish Giant rabbit for 184 days. The average slaughter weight for the Checkered Giant rabbit was 4566g and for the Flemish Giant rabbit 4744g. The lowest slaughter yield of 48.6% in our experiment was achieved by females of Checkered Giant rabbit and the highest 56.7% male California rabbit.
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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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Vliv sylimarinu na jatečnou výtěžnost králíků
KREJČÍKOVÁ, Klára
The work deals with the influence of the Milk thistle (used substance Silymarin) on the carcass yield of hybrid combinations rabbits Hyla. Hybrid combination Hyla was purposefully bred for meat performance, showing excellent results in breeding. Rabbits behave primarily on meat, because nutritional properties correspond to the current requirements of rational nutrition. Therefore, it is appropriate to increase the carcass yield. The average slaughter yield is indicated from 40 to 53% according to the breed. It was found that the addition of milk thistle in the form of a powder in the complete feedingstuff at a concentration of 0.2% increased the carcass yield, relative to the control group (which was fed only KKS), on average by 0.4%. The group with the addition of 1% showed an average value of 1.2% higher than the group control. The average slaughter yield of all the groups ranged from 54,68 into 63,02%. In both farms also decreased the incidence of diarrheal disease. Silymarin has a favorable effect on the operation and growth of the liver. In the group with the addition of 0.2% increased the average liver weight of 8.1 g, in the group with a concentration of 1% weight on average picked up about 10g. The average weight of the liver varied from 111,19 to 121,20 g. The control group in the case of carcass yield and liver weight showed better results than the authors of their articles.
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