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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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