The aim of this diploma work was to review the current state of breeding of Normande cattle in Czech republic. The reason for introducing the breeding of this cattle is some of its qualities. The most important of these include a higher percentage of casein in milk as well as good conversion of nutrients from the bulk feed and meat quality. Monitoring of cattle took place in four separate farms in years 2005 - 2009. There was created basic monitored group from pure Normande breed. Control groups were from pure Holstein dairy cattle, Czech Spotted dairy cattle. Fertility evaluation was done by following four indicators: age at first calving, insemination interval, service period and interlude. Evaluation of efficiency was based on milk production, protein production and content of the milk constituents. Results of fertility show that with the exception of age of first calving (832 days), the breeding goal hasn't been met to Breeders Association of Normande cattle. Value of insemination interval was 88,74 days, value of service period was 134,28 days and value of interlude was evaluated at 462,38 days. When we compare the Normande breed with Holstein breed, milk production of Normande breed is lower about 2025,4 kg, as well as lower protein production about 48,6 kg. Difference between fertility results for both breeds is within statistical discrepancy. In comparison with the Czech Spotted breed, the Normande breed is at least competitive in both indicators: fertility and efficiency as well. Content of milk constituents in Normande cows milk is significantly higher than in the milk of the other two breeds (4,38 to 4,41% of fat, 3,76 to 3,81% of protein, 4,89 to 5,20% of lactose). There was the highest culling (57.4%) in the basic selection of pure Normande dairy cows in comparison to selections of other breeds. The main reason for discarding were the other health reasons.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:53525 |
| Date | January 2010 |
| Creators | KABÁTKOVÁ, Zdenka |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
Page generated in 0.0019 seconds