This graduation thesis deals with analysis of linear description and rating on outward appearance of dairy Holstein cattle and their influence to parameters on dairy use. It contains origin and form of cattle domestication, importance of the breeding, detailed description of Holstein breed, the milk utility which the dairy cows produce, the rating on Holstein cattle outward appearance. For this purpose was performed appraisal of 316 968 dairy cows for first lactation. Within parameters of dairy utility were included milk yield (kg milk); lactation order (n); amount of fat (% or kg); amount of protein (% or kg). Furthermore it mentiones the evaluation of the linear description of dairy cows at first, second and third lactacion. It can be stated that a very prominent effect on dairy yields was found in the characters: body frame, chest width, body depth, angularity, rump angle, condition, rear posture position, foot angle, walking, bones quality, fore udder attachment, front teat placement, back teat placement (p <0.01). The effect on dairy yields had the following features: rear leg set from the side, teat length, suspensory ligament (p <0.05).
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:426953 |
| Date | January 2018 |
| Creators | Audová, Adéla |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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