Рубцовое пищеварение, переваримость и использование питательных веществ при скармливании бычкам жмыха льна-долгунца

The purpose of the research is to study the effect of feeding flax seed cake on scar digestion, digestibility and nutrient use to young cattle. The influence of different levels of introduction of flax seed cake into compound feeds for young cattle of the post-dairy period on the digestibility and use of nutrients in diets has been studied. The optimal introduction of flax seed cake with the complete replacement of sunflower meal into mixed feeds for calves was established - 20 and 25% by weight, expressed in the activation of the intensity of physiological and biochemical processes in the rumen, increasing the digestibility of the dry matter of the rations by 1.7 and 1.1 percentage points, crude protein - by 0.5 percentage points, fiber - by 4.3 and 6.9 percentage points, fat - by 6.1 and 15.6 percentage points; improved nitrogen use - by 1.7 and 2.7 percentage points. Studies have confirmed the high nutritional value of flaxseed cake due to the high content of oil, its fatty acid composition, protein, fiber and vitamins.