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Table 3 Effect of pulsation pattern (alternate = 2 × 2, simultaneous = 4 × 1) with WB and NB cluster types on mean teat tissue changes (mm), milk yield (kg) and milking time (seconds) with low-level milking - Experiment 3

From: Effect of liner design, pulsator setting, and vacuum level on bovine teat tissue changes and milking characteristics as measured by ultrasonography

  2 × 2 4 × 1 2 × 2 4 × 1  
  N.B1 W.B W.B N.B1 s.e.d
Canal length 2.59 2.54 2.75 2.34 0.31
Teat diameter - 0.03a 0.65c 1.00c - 0.20a 0.29
Cistern diameter - 6.87 - 7.50 - 7.30 - 6.88 0.95
Wall thickness 2.34 3.08 3.36 2.43 0.45
Teat length 8.47 10.84 9.31 9.53 0.99
Mean milk yield 13.79b 15.09b 14.1 b 12.72a 0.76
Mean milking time 517a 595c 444a 674c 58
  1. s.e.d: standard error difference
  2. Values with different superscripts, within rows, differ significantly, ab P < 0.05, ac P < 0.01.