In my diploma thesis, I have been observing the influence of the milk yield on the exterior changes of cows of the Czech Fleckfieh breed. The monitoring was carried out in August 2017 at PROAGRO Radešínská Svratka a.s. in a group of 83 cows on the second and third lactations for which an exterior evaluation of linear description was performed at the first lactation. The cows were subsequently evaluated by a linear description on the currently ongoing lactation. The whole set was then divided into three groups according to the milk yield values for cows with low, medium and high milk yields. The obtained data were statistically analyzed and the effect of the performance on the exterior was evaluated. The obtained results show statistically significant relationships between groups of cows according to their performance and the monitored parameters of milk yield. There was also a statistically significant relationship between the milk yield and the height at the withers and cross, the chest circumference, the rump length, the hip width, the rear udder length and total indexes for frame, muscularity, and feet and legs.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:427260 |
| Date | January 2018 |
| Creators | Vavruška, Josef |
| 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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