National Repository of Grey Literature 35 records found  beginprevious16 - 25next  jump to record: Search took 0.01 seconds. 
Vliv emisí prachových částic a pachových látek z intenzivního výkrmu drůbeže na životní prostředí v okolí chovu.
COUFAL, Marek
This thesis is about evaluation of the influence of odorus substances and dust particles from intensive poultry farming to the environment. Measurement was done on a family farm near the forest in spring and autumn in 2017. The fattening of broilers is carried out there in four fattening halls with a total of 103,000 units. Poultry is fattened on the farm for 238 days during the whole calendar year after 7 batches. Sampling was carried out from one of these halls. The values obtained are ranged from 59 / m3 to 215 / m3 for odorous substances and particulate matter PM10 ranging from 0.061 mg to 0.0765 mg. PM2.5 dust particles showed values of 0.042 mg after 0.1535 mg. Evaluation of odorous substances was performed by the method of dynamic olfactometry according to the standard ČSN EN 13 725. The values obtained were ranged from 59 / m3 to 215 / m3. The range of production specific emissions was between 0.013828 and 0.298366 ( / / s). The PM10 particle emission production rate between 0,0000179 and 0,0001094 (mg / pc / year) and PM2,5 from 0,0000642 to 0,0001672 (mg / pc / year) was determined using the particulate measurement methodology. These data were compared with the relevant air pollution limits according to Annex No. 1 to the Act on Air Protection No.201 / 2012 Coll., Immission background in the locality and a dispersion study was prepared for them.
Zootechnické aditivní látky a jejich možné využití
PLEVKOVÁ, Jaroslava
This bachelor thesis deals with the characterization and classification of additive substances for animal nutrition, in particular from the legislative point of view. Furthermore it focuses only on zootechnical additive substances, their distribution, description and the possibilities of their utilization in livestock feed, and mainly their use and affect on poultry. Also included are examples of poultry feed supplements containing these additives.
VÝZNAM VITAMINŮ VE VÝŽIVĚ DRŮBEŽE
KUDRNOVÁ, Eva
Bachelor thesis deals with nutrition, feeding of poultry and importance of vitamins especially in laying hens, fattening broilers and ducks. Lack of vitamins leads not only to metabolic diseases that can significantly impair the productivity and efficiency of the breed. In the first part of the thesis I explain the importance of vitamins and their distribution by solubility. I deal with the digestive system in birds, the physiology of digestion. In the second part I provide information on feeding and feeding of poultry. In the final part I propose possible measures that will improve the health status, production and welfare of poultry.
Vliv fytogenního krmného aditiva na užitkové parametry u drůbeže
HOMOLKOVÁ, Eva
The aim of this diploma thesis was to verify the effectiveness of phytogenic additives in utility parameters of poultry.The experimental study was conducted at the research station of the company Delacon Research Station PNRC s.r.o. in Stošíkovice on Louce.The experiment was carried out with little roosters hybrids ROSS 308. The fattening took 42 days and the three-phase feeding BR 1, BR 2 BR 3 was applied. Phytogenic additives were added to all kinds of feed mixtures. Given that this is a primary research of a private company, it is not known the exact structure of the used additives, which the company protects as its know-how. Additives were based on saponins in combination with other substances of phytogenic origin. During the process of fattening, the utility parameters of the experimental groups were monitored, which were then compared to the control group.Experimental groups showed a positive effect in several utility parameters at particular periods, statistically conclusive positive results were obtained only in the feed conversion in one experimental group during the 29th - 42nd day of fattening and in three experimental groups in whole fattening evaluation from 1. - 42nd day.
Koncentrace tuhé znečišťující látky uvnitř stáje velkochovu drůbeže v závislosti na stáří drůbeže
DVOŘÁK, David
This thesis deals with the issue of air pollution, emission of solid substance in the large-scale poultry. Compares the level of surface contamination inside the breeding facility, depending on the age of the poultry. The measurements were carried out in accordance with the applicable methodology for the evaluation and the determination of the concentration of dust particles PM10 in the selected large-scale poultry. Measurement was carried out in a large-scale broiler Farma u lesa in Sudoměřice u Bechyně. The aim of this work was to obtain a measurement and then evaluate the data obtained. The measurements were carried out in two rounds to measure two size fractions of solid pollutants. The DUST TRAK 8530, borrowed by the faculty, was used to measure the solid dust particles in bulge. Further, the thesis also describes description and measurement methodology with this device.
Analysis of meat demand in the Czech Republic
Dlasková, Karolína ; Ščasný, Milan (advisor) ; Polák, Petr (referee)
Meat and meat products form the highest share of Czech household expenditures for food. This thesis offers a complex view on the Czech meat market and studies in detail the determinants of meat demand. A review of the most frequently used demand models is included, from which the least squares log-log model is used for empirical analysis. The core of this thesis is the estimation of price and income elasticities of demand for various types of meat based on statistical data of household accounts from the years 2000 - 2012. The estimates are, with the exception of the price elasticity for beef, which equals 0.13, consistent with previous studies. Within the examined period, households manifest unitary income elasticity and own price elasticity of demand for meat equal to -1.2. The temporal evolution of elasticities varies for different types of meat. Important socio-demographical aspects influencing the demand for meat, such as age, education, whether the household is led by a female, and others, are also analysed.
Stanovení emisí tuhých znečišťujících látek v chovech drůbeže
MAŠEK, Jiří
This bachelor´s thesis focuses on problems with a concentration of dust participles in poultry farming, specifically broiler farming. Data for this study were collected by taking measurements in The Cooperative Farm Batelov. DustTrak II 8530 monitored dust participles for 24 hours every 2 seconds. The measurement was done during the third and the last week it means the fifth week of poultry´s fattening.
MMěření emisí tuhých znečišťujících látek v intenzivních chovech drůbeže
ŠONKA, Jan
There is a large number of contaminants in the air coming from agricultural activities that affects our environment. One of the major producers of contaminants is caused by poultry farming. These agents can be called a carbon dioxide, carbon monoxide, ammonia, hydrogen sulfide and dust. The aim of this thesis is to determine the value of PM10 concentration in poultry farming. These particles can damage not only animals' health but also the one of farm staff, because they are able to get behind the respiratory tract. Measurements were carried out in a poultry farm in Sudoměřice u Bechyně according to valid methodology by measuring the emissions of dust particles in poultry for the integrated pollution prevention and control. The device used for measuring purposes was DUST TRAK 8530 II. The resulting values were compared with the ones that are listed in table 5.15 on page 157 of the document Final TWG meeting for review of the IRPP BREF.
Měření a vyhodnocení přírůstků zvířat a produkce emisních plynů ve vybraném provozu s chovem drůbeže při využití fytoaditiv v krmivu
HOMOLKOVÁ, Eva
Agriculture is a sector whose activities significantly affect all components of the environment. Intensive livestock production produces a large amount of harmful waste substances that have a negative impact on the individual components of the environment. The aim of this work is to measure and evaluate the impact of phytogenic additives in the production of emission gases in poultry farming by using the device INNOVA 1412. The measurement was carried out in the research center of the company DELACON Biotechnik CR, Stošíkovice na Louce.
Emise tuhých znečišťujících látek v chovu drůbeže
JANOUŠEK, Tomáš
Agricultural activities produce a number of dangerous wastes affecting the environment. One is powder produced in livestock production, in particular in stables factory farms. Particulate emissions from livestock buildings are particularly important for the closest neighborhood stables. It is the subject of conflicts between farmers and their neighbors. The source of dust in livestock buildings are mainly food (fine particles modified cereals and dried plants) renegade animal skin particles, urine crystals and particles of feces. The aim of this work is to determine the concentration of dust in the factory farming of chickens for meat. Secondly, the aim is to compare BAT (Best Available Technique - Best Available Technology) technology used in stables with the reference document BREF (Integrated Pollution Prevention and Control - Integrated Pollution Prevention and Control). Measurements were carried out on a Farma U lesa in Sudoměřice u Bechyně on a poultry farm in Horní Miletín.

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