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Chovatelská a ekonomická analýza chovu dojeného skotu ve vybraném zemědělském podniku
BUŘIČOVÁ, Hana
The aim of this work was to analyze breeding and economical indicators of cattle breed in Selekta Pacov ltd. and on a private farm of Mr. Lubomir Straka in years 2014-2015. The results show, that in both cases, these plants are very modern and continuously innovated with high standard of milk performance, good health state of all milk cows, high-quality nutrition and appropriate farm management. Reproduction indicators are acceptable in both cases and correspond with the high milk performance. Economic result corresponds with the excellent level of milk cows breeding; both companies show profit during whole period of observation. Calf breeding is at high level on both farms as well. The farm of Mr. Straka shows the only problem; due to shortage of workforce, the farm has relatively high calf loss. In the heifer category, the results in breeding economy and breeding indicators are at high level. These animals are fully grown and developed with great body proportions and optimal body condition; this is the precondition of high milk performance. Bull fattening is realized in Selekta ltd. only; Mr. Lubomir Straka doesn´t fatten the bulls, but he sells them as calves already. For Selekta ltd., this commodity is an unprofitable branch. The reasons are low growth during fattening and high feed costs. If these problems are not removed, it will be better to cancel this category.
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Evaluation of selected indicators of diary cattle breeds in VOD Kámen
BUŘIČOVÁ, Hana
Cattle breeding is one of the most demanding branches of the agricultural production. Prerequisite for successful breeding is the economical effective milk production which only be achieved with good health of animals, good fertility, adequate replacement herd, longevity of cows and appropriate management. Breeders must always think about the way of the keeping and about the breed of the animals. This thesis aims to evaluate selected indicators of milk and meat production, fertility, longevity and economy of the milk production in the dairy herd of Holstein and Czech Pied cattle in the same stalling and at the same nutrition in the company VOD Kámen. It was chosen sixty Holstein and sixty Czech Pied breeding dams from the herd for monitoring. Monitored groups of cows were sorted out according to the genotype, origin of father and the order of lactation. The reproductive performance were used to evaluate (insemination interval, service period, meantime, insemination index), indicators of milk yield (amount of milk in kilograms, fat content, protein content), longevity and the reasons for decommissioning of cows. To evaluate meat yield twenty-five Holstein and twenty-five Czech Pied bulls were chosen. Differences of milk yield and fertility among both breeds were evaluated as very important (P < 0,001). Reproductive performance of Holstein cows was evaluated as inconvenient (insemination interval 82,06 days, service period 135,87 days, meantime 412 days and insemination index 2,4), and of Czech Pied cows as convenient (insemination interval 64,8 days, service period 98,84 days and insemination index 2,0). The milk yield was higher the Czech average in both breeds. Holstein cows producted 9 123 kilograms of milk for lactation with 3,87% of fat and 3,42% of proteins; the Czech Pied cows producted 8100 kilograms of milk with 4,08% of fat and 3,59% of proteins. The most common reason for removal of cows was fertility disturbance. Indicators of meat yield were better for the Czech Pied bulls. Those bulls had higher slaughter weight at lower age and better inclusion in the classification classes against the Holstein bulls.
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