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Hygienic parametres of raw cow´s milk in relation to used disinfection of mammary gland.
PEŠLOVÁ, Pavla
The goal of the graduation theses was a comparison of the hygenic quality of raw cows milk, it was expressed by the value of total bacterial count (TBC) and somatic cells count (SCC) in four breeds of milking cows using only postdipping (3 breeds) in comparison with breed using predipping and postdipping. The breeds differed in technology of lairage and milking procedures, grazing and the size the herd. During two seasons 2006 till 2007 was discovered that the breeds using predipping and postdipping had significantly less average values of TBC (9,46.103.ml-1) in comparison with the breeds using only postdipping (15,97.103.ml-1), the difference was statistically significant (P = 0,007) on the level of significance P < 0,05. Also it was shown that SCC were below averages levels with using predipping and postdipping (293,47.103.ml-1) in comparison to breeds using only postdipping (312,06.103.ml-1), the difference was also statistically significant (P = 0,01) on the level of significance P < 0,05.
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THE FACTORS NEGATIVELY INFLUENCING A SOMATIC CELL COUNT IN RAW COW´S MILK
SOUKUP, Petr
The objective of my study was to analyse the factors negatively influencing a somatic cell count (SCC) in raw cow´s milk. Milk samples were tested in three breeds with different technology of breeding and milking for a time period of three years. The SCC values were determined by Fluoro-opto-electronic method on a Fossomatic apparatus. Significant factor influencing SCC was quality practise hygiene of mammary gland. The lowest average values of SCC were determined in breed where was practise thoroughly hygiene of mammary gland (avarage SCC in year 2006 was 223,3.103 SB.ml-1). Next factors negatively influencing SCC were age of cows, annual period, quality of feed and frequency exchanges a udder sleeve. Influence a technology of breeding, milking and size breed on somatic cell count in milk was not extended.
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CONTAMINATION OF RAW COR´S MILK WITH PSYCHROTROPHIC MICROORGANISMS
ŠIMÁK LÍBALOVÁ, Kristýna
This thesis deals with the handling or storage of raw cow{\crq}s milk during which the recommended temperature is exceeded results in an increase of psychrotrophic bacteria count which can reach to the mesophilic bacteria count. The similar percentages come to lipolytic and proteolytic psychrotrophic bacteria which produce heat-stable enzymes posing the most serious danger to exacting technological procedures. It analyses relatively close relations were observed between the groups psychrotrophic bacteria and proteolytic psychrotrophic bacteria and the groups psychrotrophic bacteria and lipolytic psychrotrophic bacteria. The seasonal dynamism of psychrotrophic bacteria and mesophilic bacteria were studied in a set of microbiologic data in 2005 and 2006.
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Microbial quality of raw cow's milk in selected breeds.
HLAVÁČOVÁ, Nora
Graduation theses were inquired into question of presence of total bacteria count (TBC) in four selected cattle-raising. The breeds differ from each other with technology of lairege and milking, predipping, grazing and herd size. The first was lairage in stanction housing and in-stall milking pipeline system and embodied average values TBC from 10 {$\bullet$} 103 {$\bullet$} ml-1 till 179 {$\bullet$} 103 {$\bullet$} ml-1. The second breed was lairaged in loose grate without littered housing and got milking parlour and embodied average values TBC from 5,5 {$\bullet$} 103 {$\bullet$} ml-1 till 68,75 {$\bullet$} 103 {$\bullet$} ml-1.The third and the fourth breeds were lairaged in loose cubicle littered housing and got milking parlour and embodied average values TBC from 5 {$\bullet$} 103 {$\bullet$} ml-1 till 34,33 {$\bullet$} 103 {$\bullet$} ml-1. There was not statically conclusive difference in analysis of total bacteria count on level - significance P < 0,05 between lairage in stanction littered housing and in-stall milking pipeline system and lairage in loose cubicle littered housing and milking parlour and lairage in loose cubicle littered housing and milking parlour, when the Students test was used. The stud with lairage in loose grate without littered housing and milking parlour had the top microbial contaminaton of milk. It had serious defections of hygiene lairage and milking. It succeeded to significant differences in value TBC in bulk milk sample on level - significance P < 0,05.
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Content iodine in milk
HRABEC, Miroslav
The main goal of my graduation thesis was to review the amount of iodine in raw milk and to consider how does the milk processing influence the changes of iodine{\crq}s content in the milk. This graduation thesis brings current information about the iodine{\crq}s content in raw milk in Czech Republic before its distribution to the market. The samples were extracted in the technology output line in the dairy works during two following years (2005 and 2006). On the whole there were taken 174 samples in which the content of iodine was set by Sandell - Kollthofa method. The average value of iodine in the market milk with 1,55% fat in the year 2005 was 534,9 {$\mu$}g . l-1 and in the year 2006 was 682,0 {$\mu$}g . l-1.
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Strategic Analysis of an Enterprise
Třísková, Hana ; Dvořák, Jiří (advisor) ; Čermáková, Jitka (referee)
The aim of my thesis is to analyse selected enerprise, which is agricultural co-operative in Dolní Cerekev by using specific methods. Implement external analysis and analysis of internal sources, introduce the market in which the firm operates and analyse situation in this market. On account of gained information propose concrete suggestions to firm's management, which should lead to next development of this firm.
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Milk production quotas and milk vending machines
Veselá, Anna ; Mičúch, Marek (advisor) ; Mirvald, Michal (referee)
The thesis focuses on the regulation of the dairy market. The reason why production quotas were introduced was cost reduction within CAP, as the overproduction was still present and costs of storage were too high. The result of this regulation was reduction in number of cows and shut down of many farms. Besides this low prices of milk were reason as well. Now the price the farmers sell the milk for is about 2 CZK lower than is the production cost. Some farmers decided to purchase a vending machine for milk, where they can sell one litre of milk for 13 -- 15 CZK. I investigate if this investment can help them to improve their economic situation. I come to a conclusion that this way of selling milk is suitable only for small farms.
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