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Anorganicky vázaný Se a kmín kořenný (Carum carvi) v dietě pomalu rostoucích kuřat
Burian, Tomáš
The thesis deals with inorganically bound selenium and carraway in the diet of slow growing chickens. The thesis is divided into two parts - a theoretical part and a practical part. The theoretical part deals with the anatomy of the digestive tract of the domestic chicken, nutrition and feeding of slow-growing chickens, then selenium in the diet of broilers, and finally caraway (Carum Carvi) in animal diets. The practical part of the thesis deals with an experiment carried out on 144 slow-growing roosters of the hybrid breed Hubbard JA 57 A. These broilers were divided into 4 groups according to the addition of ingredients to the feed. The first group (n=36) was the control and had no additive in the diet. The second group (n=36) had an addition of 0.4 mg/kg inorganically bound selenium in the diet. The third group (n=36) had selenium supplemented with 1% caraway. The feed ration of the fourth group (n=36) contained only the addition of 1 % caraway. The aim was to investigate the effect of inorganically bound selenium and caraway on feed consumption, feed conversion, animal weights during and at the end of fattening, carcass and main cut parts yield, blood plasma selenium content and blood biochemical parameters. From the above results, it is evident that the effect of addition of selenium and caraway to the feed mixture of broiler chickens, was not statistically proven (P>0.05) in feed consumption, feed conversion, weight of chickens, carcass and major cut parts yield and blood biochemical parameters. On the other hand, there was statistical evidence (P<0.05) of the effect of inorganic selenium supplementation on the groups compared to the groups without such supplementation.
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Retence živin u drůbeže při zkrmování diet s podílem moučky z larev potemníka moučného
Kudlová, Lenka
The aim of this diploma thesis is, if the inclusion of 20 and 50 g/kg mealworm meal (TML) in diets for poultry has an effect on nutrient retention, gastrointestinal morphometry and digesta viscosity. Furthermore, a digesta microbiology of laying hens and biochemical blood parameters of broilers were monitored. The collected samples were subjected to laboratory analysis to determine the nutrient retention, gastrointestinal morphometry, digesta viscosity, digesta microbiology and biochemical analysis of blood. The nitrogen retention was not affected by mealworm meal in broilers (p > 0.05). The nitrogen retention was the highest in the control group in laying hens (p < 0.05). A lower width and height and the highest muscle height of the gizzard, but a longer colon, (p < 0.05) were found in control group of laying hens compared to the experimental groups. No differences (p > 0.05) were found in the villi height of the ileum. The digesta viscosity in broilers was not affected by (p > 0.05) experimental diets. The highest value of digesta viscosity in laying hens was found in the group with inclusion 50 g/kg TML (p < 0.05). No differences (p > 0.05) were found in the microbiology of the digesta between the compared groups of laying hens. Significant differences (p < 0.05) in biochemical blood parameters were found in the concentrations of ALT, total bilirubin, urea, creatinine, glucose and α-1 globulin between control and experimental groups of broilers.
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Význam aditivních látek ve výživě drůbeže
STUNOVÁ, Tereza
Bachelor thesis is about differences in morphology and physiology of poultry as affected by nutrition, with special focus on effects of nutritional additives. The thesis focuses mainly on a group of zootechnical additives. Description of these additives and their effect on poultry is discussed.
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Zařazení pšenice s modrým zabarvením aleuronové vrstvy do krmné dávky brojlerů
Roztočilová, Andrea
This diploma thesis deal with influence inclusion wheat with blue color aleurone layer into ratio of broilers. The experiment was conducted on hybrid broiler chickens Ros 308. The chickens were divided into 30 pieces to the control group which were fed with control feed mixture containing 38.2% wheat Vánek and experimental group which were fed with the experimental feed mixture containing 38.2% blue wheat UC66049. The effect of blue wheat was monitored on weight gain, feed consumption, carcass yield, chemical composition of meat, antioxidant activity, blood biochemical parameters and the microbial population. Statistically significant difference between the groups was observed comparing the weight of chicks aged 29 days and evaluating the average increment in the range of 22 to 29 days of age.Feeding of blue wheat UC66049 didn't have statistically significant on feed intake, feed conversion, carcass indicators, antioxidant aktivity, blood biochemical parametres and microbial population.
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Interakce mezi minerálnimi prvky v dietě brojlerů a jeji vliv na vlastnosti svaloviny
Prokop, Jakub
Diploma thesis deals with influence of mineral elements level in the diet of broiler chickens. Primary observe their importance in meat production with high nutritional and sensory quality. In experiment we tried to modulate the performance of chickens by changing the level of zinc (24 g, 204 g), calcium (2 g, 15 g) and magnesium (1,5 g, 4,5 g) and test the influence on sensory attributes of breast and tight meat. After slaughter in the age of 36 days the meat was processed and frozen stored. In sensory analysis (after heat processing) color, texture, odour, presence of strange odour, tenderness, juiciness, taste and presence of strange taste was judge. We discovered that different level of zinc has negative influence on the odour of tight meat (85,50+-2,108; 77,03+-3,333). Higher level of calcium and magnesium for the breast meat had positive influence on the color (83,53+-2,663; 88,50+-1,731) and negative influence on odour (86,10+-2,428; 76,66+-3,341), chewiness (77,73+-4,157; 63,33+-4,607) and taste (71,83+-4,325; 57,75+-4,532). In the end we can conclude that addition of different levels on mineral elements can influence organoleptic properties of meat and its acceptance for the consumer. It is necessary to do more experiments in this subject in the future.
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Krmiva využívaná ve výživě drůbeže
Hromádková, Vladana
Bachelor thesis deals with feeds used for poultry nutrition, focuses on the most commonly used and specifies them. Furthermore, there are possible modifications of individual feeds or feed mixtures. There are also risks that may arise in the work that can be caused by improper handling of feed and its possible impact on poultry. The main risks are antinutritional substances and mycotoxins produced by fungi, which have a negative impact on the quality of the breeding. Therefore, it is necessary that breeders pay attention to the quality of the feed they feed.
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Využití biochemického vyšetření krve v hodnocení výživy a metabolismu brojlerových kuřat
Šipošová, Aneta
This diploma thesis, which is based on the feeding experiment, deals with the influence of nutritional deficiency in broiler chickens nutrition on parameters of biochemical blood profile and subsequent determination of the dynamics of changes of specified blood parameters depending on the age of broiler chickens. The aim was to verify whether reducing nutrient concentration in the feed mixture has affected the biochemical blood profile and whether the biochemical parameters observed could be used as indicators of metabolic disorders arising from mistakes in chicken nutrition. For the experiment were used the hybrid broiler chickens Ross 308, which were divided into groups. Chickens of the control group were fed a standard granular feed mixture of BR2 and subsequently BR3 during the experiment. Chickens of the experimental group I were fed with a standard mixture of BR2 that was mixed with wheat (in ratio approximately 1:1) and mashed. In the second third of the experiment, was created experimental group II (a part of the chickens of the original test group I), where chickens were fed the same as the control group. The statistically significant difference (P ≤ 0.05) was among all groups in the assessment of weight of broiler chickens for the whole of the fattening depending on the age of chickens. Within the biochemical blood profile, resp. the evaluation of enzymes, macro elements, indicators of nitrogen and energy metabolism, some differences between groups were also statistically significant. However, the results of the experiment show that the determined biochemical parameters are not sensitive indicators of nutritional deficiency. Much more sensitive indicator of induced experimental nutrient deficiency was changes in live weight ofchickens and feed conversion ratio. The evaluation of the dynamics of changes inmonitored parameters depending on the age have been identified significant changes in some values. Increase in ALT = alanine aminotransferase, GGT = gama-glutamyltransferase, LD = lactate dehydrogenase, sodium, potassium, chloride, magnesium and total protein. Conversely, a significant decrease was found in ALP = alkaline phosphatase, uric acid and urea. Based on the experiment, we can say that biochemical blood profile is not sensitive indicator of the nutritional deficiency of broiler chickens. It is important to mention the effect of the age on the results because the number of parameters significantly changed during fattening.
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Zkrmování celého zrna pšenice brojlerovým kuřatům
Doležalová, Nikola
This thesis deals with monitoring the feeding of whole grain wheat to broiler chickens and evaluation of the effects of this feeding on the performance parameters of chickens and quality carcass. The monitoring also included the development of the gastrointestinal tract - weight of gizzard and proventriculus, weight of mucous membrane of gizzard, weight the of tpancreas and the length of the small intestine. Experiment was performed on 570 pcs broiler chicken of Cobb 500 hybrids in the period from 10. - 35. day of age. After 10. day of age group number 1,3,5,7,9,11 were fed a granular mixture containing the whole grain of wheat and the group number 2,4,6,8,10,12 granular mixtures as a control experiment. The chickens accepted of feed mixtures: BR2 at the age of 10. - 21. day, BR3 at age of 22. - 28. day and BR4 at age of 28. - 35. day. Into 10. day od age eat all the chickens the same feed mixture BR1. Between the control and experimental group was not statistically significant difference in live weight of chickens. Statistically significant difference wasn't between these groups in feed conversion 10. and 18. day of age. In 25. day of age was statistically significantly (P<0,05) better feed consumption for chickens in the experimental group, on average, 1520,3 g/kg, compared to the control group with the value of the feed conversion 1573,2 g/kg. At the age of 31 days was not statistically significant difference between the experimental and control group and also in 35. day of age at the end of the fattening period. There wasn‘t also statistically significant difference in weight of JUT, weight of abdominal fat, weight of gizzard, weight of mucous membrane of gizzard, weight of proventriculus and weight of pancreas.While in the evaluation of the length of the small intestine have been found conclusive statistical (P<0.05) differences between control and experimental group. In the experimental group was smaller, the length of the small intestine, in averages the males 165.5 cm and females 166,3 cm, compared to the control group, when the males had an average length of the small intestine 173,8 cm and females 169,2 cm. In the evaluation of the influence of gender on the development of the gastrointestinal tract were noted in all parts of the higher statistical conclusive differences among the males. Based on the results we can recommend the feeding of whole grain wheat as part of a compound feed without conclusive effects on performance parameters and quality carcass.
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Zařazení barevné pšenice do krmné dávky brojlerů
Zahradníčková, Marie
The aim ofthis study was todetermine effect ofpurple wheatKoniniwith a higher contentof anthocyanins(14.01mg /g) in grainincluded infeed ratiofor fattening male broilers of hybridcombinationsCobb 500. The effectonfeed consumption, weight gain and carcass yield were evaluated. The content of purple wheat Konini in experimentaldiet was78%, 0%, 50%, 26% and 52% which was compared to control wheat, whose content was also 78%, 0%, 50%, 26% and 52%. Nitrogen compounds in the control wheat were topping using gluten. The highest feed consumption and the highest average weight gains were a group of 5 that contained the color of wheat Konini 2/3 and 1/3 controls wheat. 100% wheat feeding horsemeat statistics had no significant effect on weight gain, feed consumption or carcass yield.
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Použití bylinných extraktů v krmné dávce brojlerových kuřat
Šťastník, Ondřej
This thesis is concerned with detecting the effect of the addition of garlic extract to the diet Ross 308 cockerels on blood antioxidant activity expressed by FR method and ni-trogen retention. It focuses the effect of garlic extract on body weight gain, feed con-sumption, feed conversion and carcass yield. Statistically significant (P <0.05) the highest antioxidant activity levels were achieved in the control group as measured by FR method. Statistically significant (P <0.05) effect on nitrogen retention was found in the control group compared to groups containing 10 and 15 g of garlic extract per kilogram of feed mixture . Feeding garlic extract had no statistically significant effect on body weight gain, feed consumption, feed conversion and carcass yield.
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