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Table 3a Interaction of cluster type and pulsation pattern on teat tissue changes (mm), mean milk yield (kg) and mean 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

 

Cluster type

Pulsation pattern

Cluster × x pattern

 

N.B1

W.B

s.e.d

2 × 2

4 × 1

s.e.d

P-value

Canal length

2.46

2.65

0.22

2.67

2.44

0.22

0.95

Teat diameter

-0.12a

0.83d

0.21

0.49

0.22

0.21

0.69

Cistern diameter

-6.90

-7.40

0.67

-7.09

-7.19

0.67

0.89

Wall thickness

2.38a

3.22b

0.32

2.85

2.75

0.32

0.59

Teat length

9.00

10.08

0.71

8.89

10.19

0.71

0.75

Milk yield

13.25

14.60

0.54

13.95

13.90

0.54

0.08

Milking time

596

520

41.2

481a

635c

41.2

0.94

  1. s.e.d: standard error difference
  2. Values with different superscripts, within rows, differ significantly, ab P < 0.05, ac P < 0.01, ad P < 0.001