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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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Meat yield of rabbits
KREJČÍKOVÁ, Klára
This bachelor thesis deals with a topic of meat yield of crossbred rabbits. The basis assumption of quality of meat production, fur and rabbit skin is a sufficient nutrition as well as genetic disposal. The nutrition and feed depend on breeding and housing technology. Nowadays many types of feed exist. The most important fact in feeding is the time. It is necessary to gain the slaughter weight as soon as possible. In the first experimental group the slaughter weight (2600 g) was gained in 70th day of rabbit's life no matter if it was female or male animal. But in the second one the slaughter weight was gained after 77 days. The increases in weeks of feeding were equal, differences in the first groups were inconclusive, and in the second one there was a difference of 15, 5 g/week (2, 2 g/day) between female and male animals. The consumption of feed was different in those two experimental groups. In the first group there was no evidence of different volume of feed between female and male animals whereas in the second one the female animals consumed more feed than male animals. The difference was 4, 3 g/day. Silybum marianum was added to the feeding mixture in concentration 1, 0 % in the first group and in 0, 2 % in the second one.
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