Methionine Hydroxy Analog: Varying Levels for Lactating Cows

• Published in: Journal of dairy science Vol. 53; no. 5; pp. 607 - 610
• Main Authors: Polan, C.E., Chandler, P.T., Miller, C.N.
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.05.1970; Am Dairy Sci Assoc; American Dairy Science Association
• Subjects: Animal Feed; animal science; Animals; Cattle - physiology; Fatty Acids - analysis; Female; Lactation - drug effects; Lipoproteins - blood; Methionine - blood; Methionine - pharmacology; Milk - analysis; Pregnancy; Triglycerides - blood; zoology

Beginning two weeks before anticipated parturition and for 90 days post-partum, 24 Holstein cows received a concentrate (14.5% crude protein) containing either 0, 0.2, 0.4, or 0.8% methionine hydroxy analog. Concentrate was limited to 11 to 12kg/day and corn silage-urea (0.5%) was offered free choic...