Production System a

1

2

3

4

5

Cow herd sections

RF

MP

RF

MP

RF

MP

RF

MP

RF

MP

Cows allocated, %

38.2

61.8

38.2

61.8

30.2

69.8

25.4

74.6

23.8

76.2

Calf sex ratio (m:f)

1:1

1:1

1:1

1:1

1:9

1:1

1:1

1:1

1:9

1:1

Productivity, kg

32.9

95.9

32.9

102.5

4.7

115.8

24.5

134.1

4.2

137.0

Total feed intake, kg

377.6

1221.7

377.6

925.4

59.3

1045.3

189.7

1044.3

35.9

1066.7

Relative merit

378

391

734

649