Effect of feeding a reduced-starch diet with or without amylase addition on lactation performance in dairy cows

• Published in: Journal of dairy science Vol. 93; no. 2; pp. 723 - 732
• Main Authors: Gencoglu, H., Shaver, R.D., Steinberg, W., Ensink, J., Ferraretto, L.F., Bertics, S.J., Lopes, J.C., Akins, M.S.
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Inc 01.02.2010; Elsevier; American Dairy Science Association
• Subjects: amylase; amylases; Amylases - administration & dosage; Animal Feed - analysis; Animal Nutritional Physiological Phenomena; animal performance; Animal productions; Animals; Biological and medical sciences; Body Weight - physiology; Cattle; cow feeding; dairy cows; Dairying; Diet - veterinary; Diet, Carbohydrate-Restricted; dietary supplements; exogenous sources; experimental diets; fed varying amounts; feed conversion; Female; fermentation; Food industries; Fundamental and applied biological sciences. Psychology; grain; high-moisture corn; lactating cow; lactation; Lactation - physiology; low carbohydrate diet; milk-production; neutral detergent fiber; nutrient digestibility; Particle Size; Random Allocation; reduced-starch diet; ruminal digestion kinetics; ruminant nutrition; site; soy hull; soyhulls; starch; Starch - metabolism; Starch and starchy product industries; Terrestrial animal productions; Time Factors; Vertebrates; lactating cow; soy hull; starch; amylase; Farming animal; Amylase; Lactation; Enzyme; Starch; Dairy cattle; Feeding; Vertebrata; Mammalia; Diet; Dairy industry; Carbohydrate; Artiodactyla; Performance; Amylolytic enzyme; Polysaccharide; Ungulata

The objective of this study was to determine lactation performance responses of high-producing dairy cows to a reduced-starch diet compared with a normal-starch diet and to the addition of exogenous amylase to the reduced-starch diet. Thirty-six multiparous Holstein cows (51±22 DIM and 643±49kg of b...