ENADE Zootecnia Practice Questions - ENADE Zootecnia - Exame Nacional De Desempenho Dos Estudantes Exam

Fraction A represents digestible hemicellulose, B1 represents crystalline cellulose, B2 represents starch, and fraction C contains rapidly soluble mono- and disaccharides with very high degradation rates in the liquid phase of the reticulorumen during active digestive fermentation bouts in cattle. Fraction A consists of lignin and cutin, B1 represents unavailable neutral detergent fiber, B2 consists of soluble pectins, and fraction C contains free glucose and fructose with instantaneous ruminal clearance during active feeding bouts in high-producing dairy cows on total mixed rations. Fraction A represents bypass starch, B1 represents microbial exopolysaccharides, B2 represents organic acids, and fraction C corresponds to soluble beta-glucans fermented primarily in the post-ruminal cecum and large colon of adult ruminants receiving grain-based concentrate feeds. Fraction A comprises organic acids and soluble sugars with very rapid degradation rates, B1 consists of starch and pectin with intermediate rates, B2 corresponds to available fiber (digestible NDF) with slow degradation rates, and fraction C represents unavailable, lignin-bound indigestible fiber.