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Výkrm japonských křepelek
KOUBA, Jindřich
The content of this thesis was to draw up the literary owerview around Japanese quail breeding and fattening and to execute the practice experiment whitch aim was to analyse the efect of the inclusion of extruded flax seed to the diet for quails.
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Vlivy působící na masnou užitkovost ovcí
MALÍK, Dominik
The Thesis The factors affecting sheep meat yield is concentrating on lamb growth ability and the factors which can positively or negatively affect this ability. The basic findings of previous researches and analyses are mentioned at the beginning of the thesis followed by basic classification of lamb meat yield factors. Subsequently, there is an explanation of author's own research where the selected factors were empirically tested. The research took place between years 2013 and 2016 on one flock of sheep on pastures of Orlicke hory region. The birth weight and the weight gain of lambs were monitored in order to evaluate effects of gender, feeding rations and number of lambs in one litter on weight gain ability of each reared lamb. The research has shown that the most important factor is the correct setting of feeding rations while the initial birth weight is mostly influenced by the number of lambs in one litter. On the other hand, the research was unable to prove the effect of gender on the weight gain.
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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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Influence of selected factors on the fattening capacity and carcass values of bulls in the control station Želeč
PUFR, Josef
Cattle breeding is one of the part of traditional Czech agriculture. It is a vital part of economy consisting of two main branches - milk and beef production. Beef is one of the main products of cattle breeding sometimes provided by fattening of heifers, cows and bulls. Producing meat with the highest quality with low costs is the main goal of fattening the cattles. I have tested the influence of selected fators on the fattening capacity and carcass values of Czech Fleckvieh bulls in the control station as well as the economic requirements of the fattening period. I have compared the test period of 530 ? 10 days with period of 610 ? 10 days of fattening using the old and new technology of supplementation. Further fattening was provided by results of growing Charolais, Limousin and Czech Fleckvies x Simmental bulls. The results suggest that the increase of the period of fattening for 80 days had a positive effect on carcass yield (p < 0.001), assigning in the classification according to SEUROP and profitability of farming. The positiv relationships between breeding value of fathers and carcass yield of their sons was observed. Finally, the positive influence of new technology of fattening on the classification acording to SEUROP was shown.
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Evaluation of selected indicators of diary cattle breeds in VOD Kámen
BUŘIČOVÁ, Hana
Cattle breeding is one of the most demanding branches of the agricultural production. Prerequisite for successful breeding is the economical effective milk production which only be achieved with good health of animals, good fertility, adequate replacement herd, longevity of cows and appropriate management. Breeders must always think about the way of the keeping and about the breed of the animals. This thesis aims to evaluate selected indicators of milk and meat production, fertility, longevity and economy of the milk production in the dairy herd of Holstein and Czech Pied cattle in the same stalling and at the same nutrition in the company VOD Kámen. It was chosen sixty Holstein and sixty Czech Pied breeding dams from the herd for monitoring. Monitored groups of cows were sorted out according to the genotype, origin of father and the order of lactation. The reproductive performance were used to evaluate (insemination interval, service period, meantime, insemination index), indicators of milk yield (amount of milk in kilograms, fat content, protein content), longevity and the reasons for decommissioning of cows. To evaluate meat yield twenty-five Holstein and twenty-five Czech Pied bulls were chosen. Differences of milk yield and fertility among both breeds were evaluated as very important (P < 0,001). Reproductive performance of Holstein cows was evaluated as inconvenient (insemination interval 82,06 days, service period 135,87 days, meantime 412 days and insemination index 2,4), and of Czech Pied cows as convenient (insemination interval 64,8 days, service period 98,84 days and insemination index 2,0). The milk yield was higher the Czech average in both breeds. Holstein cows producted 9 123 kilograms of milk for lactation with 3,87% of fat and 3,42% of proteins; the Czech Pied cows producted 8100 kilograms of milk with 4,08% of fat and 3,59% of proteins. The most common reason for removal of cows was fertility disturbance. Indicators of meat yield were better for the Czech Pied bulls. Those bulls had higher slaughter weight at lower age and better inclusion in the classification classes against the Holstein bulls.
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