The diploma thesis Influence of the breed of cattle on reproduction and production indicators presents a comparison of these two indicators in two breeds, the Czech Spotted cattle and Holstein cattle. Comparison of indicators is processed in order to confirm the accuracy of intent of the farm in Jevíčko, which is called. Holštýnizace of herd. In the field of production indicators Holstein cattle show six days prolonged lactation, which positively affects milk production, the annual production of milk is increased by 1827 kg (farm in Jevíčko), in republic this difference is even higher (2,389 kg). The content of milk components, ie. fat and protein, a farm in Jevíčko has values above average across the republic. In the field of of reproductive performance the percentage of successful pregnancy of both Leeds is comparable, about 5% below referring to the boundaries of good pregnancy. Service period is shorter in Czech Pied cattle. Period is long 103,5 days. With respect to milk production two breeds are within normal limits. Insemination index is at the Holstein breed for the whole period of watching 0.04 higher than in the Czech Pied, however, with respect on last year of watching, the evolution turns and Holstein cattle show the value of this index for 2015 at the level of 1.85, while the Czech Spotted cattle in the same period a value of 1.96. Age at first calving of Holsteins is lower about 31 days, interval between births (meantime) at the Holsteins is higher about 18 days than in Czech Pied of cattle. Meanwhile it takes 381.39 days, due to the length of the service period. Especially individual productivity indicators clearly demonstrate the correctness of intent, reproductive performance seems to be comparable in both breeds. Orientation of the farm in Jevíčko on milk production confirms the correctness of the choice of breed.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:362732 |
| Date | January 2016 |
| Creators | Jurka, Miroslav |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
Page generated in 0.0035 seconds