Effekte von Partikellänge, Faseranteil und Fermentierbarkeit von Rationen für Milchkühe auf Parameter der ruminalen Toleranz (English shop)

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The dissertation “Effects of Particle Length, Fiber Content and Fermentability of Dairy Cow Diets on Parameters of Ruminal Tolerance” by Iris Weber investigates how different feed compositions influence digestion, rumen health, and milk production in dairy cows. The research focuses on forage particle length, dietary fiber content, and carbohydrate fermentability. Two feeding experiments examine the effects of different hay lengths, concentrate levels, and carbohydrate sources on chewing activity, rumen fermentation, feed intake, and nutrient digestibility. The findings indicate that concentrate levels and carbohydrate degradation rates have a particularly strong influence on rumen conditions. Slowly fermentable diets can support a more stable rumen environment, improve feed intake, and contribute to higher milk yields. The study provides valuable insights into optimizing dairy cattle nutrition, maintaining rumen stability, and improving feeding efficiency.