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Analysis of Holstein dairy cow breeding
Váchalová, Veronika ; Toušová, Renata (advisor) ; Ducháček, Jaromír (referee)
The bachelor thesis deals with the breeding of Holstein dairy cattle within the system of intensive agriculture. The first chapters summarise the history of the breed, its origins and utilitarian purpose. The following chapters describe the systems of stabling, feeding and milking. The main factors affecting the economy include the quality and production of milk, as well as reproduction of dairy cows.
The practical part is engaged in the evaluation of reproduction and milk production at the farm in Tlumačov, which belongs under the Mrákov collective farm in the district of Domažlice. The farm had 239 cows of the Holstein breed in 2015. Their results were evaluated on the basis of milk utility control sheets for the period from 1st January 2015 to 31st December 2015. I divided the monitored herd into 3 groups: cows in the 1st, 2nd and 3rd lactation. I focused on the comparison of the total milk yield, milk fat content, protein percentage and number of somatic cells in all three groups. The results showed that the average milk yield of the entire herd for 2015 was 10,064 kg with an average fat content of 384 kg (3,81%) and milk protein content of 328 kg (3,26 %). As for the number of somatic cells, the average value 130,000/ml achieved by the farm in Tlumačov is very good. The best results were achieved by cows in the 1st lactation, with the average value of 70,000/ml. Their milk therefore is in compliance with the highest quality requirements.
Reproduction was evaluated by basic parameters. The results showed that gravidity after the first insemination reached satisfactory values for heifers as well as cows. Although the service period was shorter than optimal, according to various literary sources it is tolerable. The insemination index for heifers was evaluated as very good. Cows also achieved a good result in this parameter in 2015.
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Issues of Heat sheep breeding
Křečková, Kateřina ; Fantová, Milena (advisor) ; Ptáček, Martin (referee)
The aim of my thesis was to find and evaluate available information on breeding the German Grey Heath Sheep in the Czech Republic and other countries of its current expansion.
The thesis according to available literature describes and evaluates all the characteristics of the German Grey Heath Sheep, its exterior, productive or reproductive performance, expansion in the Czech Republic, Germany and Switzerland.
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Mléčná užitkovost plemene lacaune ve vybraném chovu
CHODCOVÁ, Anna
This thesis deals with the influence of age of Lacaune breed ewes on milk performance (milk yield and the content of individual components of milk). The length of lactation was also evaluated. Data from farm Statek Horní Dvorce s.r.o. were used and entries from years 2012, 2013 and 2014, when the milk performance was monitored by method AT. With the view of the fact that the standardized lactation in 2012 was set on 240 days while since 2013 the required length was 150 days, the year 2012 was not included into the comparison due to dubiousness of the results. The influence of age of an ewe on total milk yield in the studied farm is not clear and cannot be established with significant certainty, although in the studied years the milk performance was higher than the average in the Czech republic. In the 2013 was the total milk yield 323 kg of milk and in the 2014 was 307,4 kg of milk. The findings of basic milk parameters of individual components of milk show that the age of an ewe has an influence on the components. With growing age the content of fat was decreasing. At three-year-old ewes the content of fat was 7.36%, while at four-year-olds the content reached only 7.3%. The content of lactose also seemed to decrees with age. At three-year-old ewes the content of lactose was 4.86%, while at four-year-olds the content was 4.63%. However, the content of protein had growing tendency. At three-year-old ewes the content of protein was 5.61%, while at four-year-olds the content was 5,89%. Further was evaluated the length of lactation. It was shown an increase in the average length of lactation as they get older ewes, but the effect on lactation length was also the start date of the dry period of herd.
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The comparison of growth performance of beef breed Aberdeen Angus twins
KOCÁBEK, Jan
Aberdeen Angus (originated in Scotland) is the second most common beef breed in the Czech Republic due to its resistance to adverse climatic events, modesty, earliness, ease of calving, low birth weight of calves and good maternal instincts of cows. The main economic indicator of suckler cows rearing is the number of born and weaned calves. Production of twins is possible way to improve these indicators. The aim of this thesis was to compare the growth potential of twins of Aberdeen Angus beef breed with individuals who were born as singletons. The work is focused on comparing the weight at birth, in 120 and 210 days of age. Most twins in the population of Aberdeen Angus breed reared in the Czech Republic in 2009-2013 was born in 2012 - 9.44 % (270 pcs.), the least in 2013 - 6.67 % (184 pcs.). The incidence of twins by birth order increased from 1 to 3 birth order (78, resp. 130, resp. 131 pcs.) as further increasing order resulted into decline of twin's incidence. The difference in weight between twins and singletons at birth was 5.81 kg, in 120 days 28.32 kg and 37.32 kg 210 days (P 0.001). Differences within twins by sex were for bulls and heifers statistically significant (P 0.001). The relationship between weight at birth and calving ease was also investigated - in the case of twins relationship was not statistically significant (P> 0.05). The lowest mortality rate of twins was in 2013 - 8.70 % (16 pcs.), the highest mortality rate was in 2012 36.67 % (99 pcs.). Most twins were born in 2011 (179 pcs.), whereas least twins were born in 2010 (160 pcs.).
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"Only, where there is no strong will, there is a lack, resources are everywhere."
VOVSOVÁ, Pavla
The thesis focuses on analysis of Robert Hildprandt's breeding program in Blatná estate in period of Czechoslovakia. The time range is influenced by the character of source-books that contains information from the years 1922-1930, eventually 1907-1935. The main sources include evidence resources, especially studbooks, milk yield tests, register of calves or breeding index and preserved correspondence of the estate. According to these sources is characterized the breeding of black-piabald lowland cattle, performance testing and results of breeding program. The evolution of the breeding herd in Blatná estate is compared with both general rules of breeding in Czechoslovak era and other development of different breeds and other regions. On the basis of studbooks, there is also elaborated historical-antropological analysis of names and describtions of individual animals.
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Comparison of the performance of the parental combination of geese ESKILDSEN SCHWER and their progeny during three laying cycles
ZIGÁČEK, Ladislav
Abstract The aim of the bachelor thesis was to compare the production traits of goose parental combination ESKILDSEN SCHWER and their progeny obtaining from the poultry performance testing during three laying cycles. The tests were made by International Poultry Testing Station in Ústrašice and methodology was based on the guidelines for the implementation of poultry performance testing. Parental test consisted of rearing parents until the age of 210 days, the laying preparation period of 211?285 days, the rearing period at duration 160 days and from two fattening progeny tests lasting for 56 and 112 days. Higher live weight at 1 day, 56 day and 210 days of age during parental test was found out at gangers compare to geese. The higher number of eggs in the initial stage (66.3 eggs) and number of hatched goslings (46.4 heads) were found out at two-year-old geese. The above-average temperatures in May caused premature drop of lying at three-year-old geese. The highest breast muscle weight (430 g) at 1st fattening progeny test at 56 days of age was at three-year old geese. It was only about 14 g higher in comparison with progeny of two-year-old geese and about 30 g higher in comparison with one-year-old geese. The highest weight of breast muscle was found out at three-year-old geese at the 2nd fattening progeny test too (493 g), followed by progeny of two-year-old geese and one-year-old geese. The highest weight of breast muscle (671 g) was found out at 112 days of age at the 1st fattening progeny test at three-year-old geese. The lowest weight was at progeny of two-year-old geese. The highest breast muscle weight (746 g) was achieved at progeny of three-year-old geese at the 2nd fattening progeny test. They were followed by one-year-old geese and two-year-old geese.
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