1. Chapter 9: Milking Center Options © 2005 Thomson Delmar Learning. All rights reserved.

2. Key Chapter Concepts: Milking procedures and routines Milking center types Variables affecting efficiency Parlor performance measurements Milk quality/Udder health measurements

3. Milking Procedures and Routines Full Maximum teat sanitation Maximum milk quality Lower rates of mastitis Low cow throughput More training and labor Minimal High cow throughput Less training and labor Decreased teat sanitation Decreased milk quality Higher rates of mastitis

4. Milking Center Types — Retrofit/Simple Switch Parlor retrofit into old barn New housing provided for cows Flat Barn Parlor retrofit into half an old barn Remainder used for holding pen New housing provided for cows Swing Installed in parlor Milking units switched from one side to next Not individualized to cow milking speed

5. Milking Center Types — Retrofit or New Construction Herringbone Cows at 45-degree angle to wall Milk units applied from side No rump rails Parallel Cows perpendicular to wall Milk units applied between legs Rump rails Auto-Tandem Stalls end-to-end, not side-to-side Individualized to cow milking speed More cows per hour per stall, but fewer stalls

7. Milking Center Types — New Construction Rotary Cows ride a rotating disk Cows enjoy the ride Milking routines and labor complicated Only 80% of theoretical output Robotic Newest ways to milk cows Developed in Europe Sold on limited basis in Canada, United States

9. Variables Affecting Efficiency Not All Parlors Can be Individualized for Each Cow Variations in milking speed = milk lost Problems with one cow delay all cows Training and Labor Division of labor requires more hands to help Full milking procedures require more training in cleaning Minimal procedures require training in disease identification

10. Parlor Performance Measurements Cows per hour Cows per labor hour Milk per hour Milk per labor hour Turns per hour

11. Milk Quality/Udder Health Measurements Milk Quality Measurements Standard plate count Laboratory Pasteurized count Coliform count Preliminary incubation count Somatic cell count Added water Antimicrobial drug residue Sediment Udder Health Measurements Clinical mastitis Teat and teat-end condition