|
|
Analýza faktorů souvisejících s výskytem podotrochlózy u koní
Daňková, Sára
The thesis objective was to evaluate the relationship among morphological characteristics of the horse (in particular the posture, morphology of the hoof, height at the withers), and to analyze which of them affects the development of the navicular disease. In this research 21 horses affected by navicular disease, and 10 healthy horses were used. Our results suggest that geldings are affected more frequently than mares or stallions, and the age of onset varies from 11 to 15 years. No differences were found between groups of horses with different training intensity, or normal/abnormal conformation of the hind legs. The study identified abnormal hoof heels as a significant factor for developing the navicular disease. Comparsion between healthy and affected horses revealed a significant difference in the ratio of height at the withers and circumference of tibia (affected group showed an average of 8,25 ± 0,33 and control group average of 7,94 ± 0,27; P ≤ 0,05). Among the morphological characteristics of the hoof, the hoof angle and the ratio of hoof length to width differed significantly (P ≤ 0,05) between the two groups as well. Horses with navicular disease generally showed the hoof angle ≤ 50 degrees, and the ratio of hoof length to width > 1,0.
|
|
|
Klonování a jeho využití ve šlechtění a v dalších aplikacích u hospodářských zvířat
Daňková, Sára
This thesis focuses on mapping development of cloning since the first attempt, which was an attempt to split embryo of sea urchin, then deals with history of cloning, and the first big steps, like Dolly the sheep was. It describes the cloning technologies, complicity with genetics modifications and shows some development anomalies. This work in chapters describes different aplikations on farm animals, their benefits or disadvantages, and highlites contribution for science, breeding, and possibility of commercial application. Then it mentions investigation of FDA and EFSA for safety of animal products from clones, their welfare, well being and impact on environment.
|
guest ::
RSS feed.