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The analysis of phase nutrition of dairy cows
ZIMOLOVÁ, Barbora
This bachelor thesis deals with the nutrition of dairy cows and feeding techniques and evaluation of level on that farm. Assessment of the level of nutrition was based on the assessment of needs nutrients and energy to recommended values in relation to utility parameters. Another part of work is focused on evaluating the quality of roughage from the view of selected fermentation characteristics and nutritious value. Corn and grass silage were evaluated as excellent. An average efficiency in the reporting enterprise was 7708 kg per cow in 2013.
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The evaluation of cattle nutrition level in the agriculture enterprise
ŠANDERA, Filip
This thesis deals with evaluating the level of cattle nutrition with a focus for dairy cows in different stages of lactation. Collective farm Podkleťan Křemže contributed on this thesis providing an opportunity to monitor the quality of roughage, feeding technique and overall ration structure. Evaluation of roughage was done from the fermentation perspective with subsequent result dividing to each class. The ration was monitored from the angle of nutrient composition with assessing of nutrient and energy needs to achieve the recommended values. The nutrition should be composed of high-quality roughage to avoid dairy cows´ potential health problems. Ration should relate to the psysiological needs of dairy cows as closest as possible.
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Nutrition of dairy cows in various stages meantime, focusing on assessing the impact of nutrition on milk production and quality
HORKÝ, Jan
This thesis examines the nutrition of dairy cows at various interim phases, with a focus on assessing the impact of nutrition on milk quality and production. At the Kojčice agricultural cooperative in the village of Krasíkovice, I monitored nutrition and production parameters in Czech pied dairy cows over the course of one year. In the first section of the work, I focused on the technique and feeding of the dairy cows, the feed ration, and assessment of the feed itself. The corn silage which they were fed was rated first class. The clover silage was rated as first, second and even third class. Consultation regarding nutrition, feed analyses and composition of daily feed rations was provided by Mikrop Čebín. I also examined the state of health of the dairy cows and calves in relation to nutrition. The average yield was 6,450 kg of milk per cow per year. I monitored the individual components of the milk and evaluated how these changed over the course of the year. The average protein content was 3.48%, while fat was 4.12%. In another section, I evaluated economic indicators of milk production. The average cost per feed day was 143.51 CZK. The average production cost per liter of milk ranged around 8.51 CZK. The average purchase price per liter of milk was 7.65 CZK.
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The study of dairy cattle nutrition
ALENKOVÁ, Kateřina
The bachelor thesis deals with the nutrition of dairy cows and feeding technique and evaluates standart of nutrition on the given farm. The evaluation of the nutritional standart was based on an assessment of the needs of nutrients and energy for the recommended values in relation to utility parameters. Information on the composition of feed rations and information describing the technique of feeding were obtained from the dietary study of the Czech Pied Breed in various stages of lactation. The work also focused on evaluating the quality of forage from the perspective of selected fermentation characteristics and nutritional value.
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Quality roughage feed in relation to the economy of milk production
NÁVARA, Drahoslav
The aim of this thesis was to evaluate in selected levels of nutrition and feeding of dairy cows in relation to the economy of milk production and suggest possible options for improving the profitability of milk production. They have been selected four firms, two keeping Holstein cattle and two with red coloured cattle. One company was with highest production and the second company was with average production. The aim was to assess the profitability of milk production at peak and average enterprises, especially given the quality of forage and the cost of ration. The selected companies we evaluated the composition of feed rations, especially forage quality indicators. For assessment of milk production of dairy cows were selected for the second group, or third lactation calved in the same period, and after ten pieces from each company. We also evaluated the cost of feeding dairy cows in milk and in particular the cost to produce one liter of milk a day and feed at the cost of production for the entire lactation. Selected breeds we all observed points compared with each other.
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Influence of selected plant associations in pasture vegetation on quantity of milk with focus on spectrum of fatty acids in milk fat
BOHÁČOVÁ, Lucie
The objective of this study was to evaluate the effect of pasture and pasture vegetation composition on the milk yield and milk fat and protein content in the Czech Fleckvieh cattle kept in the less favorable areas (LFA) during the years 2007 ? 2009. These pasture characteristics were observed: pasture quality defined by the chemical composition of herbage groups, determination and rate of dominant grass types, clover types and herbs and the height of pasture vegetation. Next, the fatty acids spectrum in the milk was analyzed and the effect of forage and grain supplements on the milk fat composition was confirmed.
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The evaluation of nutrition level in agriculture entrerprise
VÁVRA, Jakub
The purpose of the study was to evaluate feeding system at given farm, uncover any shortcomings and propose measures for their elimination. On the basis of data related to composition of diets fed to dairy cows nutrient intake was found. The obtained values were compared with recommended nutrient content reported in the literature. Information describing the feeding techniques used at the farm was obtained from the farm management. These findings were also compared to the recommendations of the literature. It was found that rations met nutritional demands as well as dietary needs of dairy cows at various stages of lactation and the dry period. The work revealed weaknesses in the feeding system used at the farm. It was found that all of dairy cows throughout the entire lactation were fed a single ration. Rations for dairy cows did not take into account the different needs at different stages of lactation. Likewise, different genetically determined performance of dairy cows was not taken into account. Based on these findings, actions were proposed to remove weaknesses. It was recommended to create at least two groups of cows according to milk yield achieved, which would reduce over-feeding cows with low milk production. This would reduce the consumption of an expensive concentrated feeds and thereby save the costs.
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The high milk productive cows nutrition inrespect of milk blood and urine componds content
CHVALOVÁ, Růžena
The aim was to assess the level of nutrition of dairy cows with regard to the parameters of milk in the farm economy and appreciation of farming. Nutrition cows was assessed on the basis of rations compiled a profile of the ruminal sample cows. Content of milk constituents were identified from the analysis supplied by dairy and compared with the standard. Evaluation of economics of farming has been carried out both on the total cost and sales business. Cows were fed the same year pooled rate. The basis of each mix was preserved voluminous fodder own production. According to the spreadsheet from the ration nutrient differed slightly, but without significant differences. Content of milk constituents in both years was relatively balanced and meet the standards. In the evaluation of protein content and urea were observed in compound doses deficit protein or energy. When comparing the economics of farming, production of milk in 2009 suffered a loss due to low purchasing prices of milk.
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Nutrition and feeding influence in relation to milk production of dairy cows
BARTUŠKA, Václav
The assessment of the level of nutrition of dairy cattle in relation to their milk pruduction was carried out under operating conditions. The focus was on the quality of the roughage feed, the feeding technique, the contents of the diet and the supply of nutrients. On the basis of operating and economic indicators, the milk production costs as well as an overall evaluation summing the individual observed periods have been calculated. The results of the observation of the level of nutrition over a three-year period indicate that the feed rations are prepared according to the optimal standards. In the observed periods, first quality* corn silage and first or second quality** corn silage was always used. The average efficiency of a cow reached 7 000 kg of milk per year. The average cost of one litre of thus produced milk was 9,30 CZK in an average day, and the average sum of money needed came in at 138,37 CZK.
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