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Table 3 Mortality and disease risks for intermediate calves and heifers and disease risks and other effects on cows or milk according to suckling alternative

From: The economic effects of suckling and milk feeding to calves in dual purpose dairy and beef farming

  No suckling Length of the suckling period
  3 days 7 weeks 13 weeks
Effects on intermediate calves
 Disease incidence, % 33 19 2 2
 Mortality rate, % 3.6 3.6 3.6 3.6
Effects on heifers
 Disease incidence, % 35 20 2 2
 Mortality rate, % 3.8 3.8 3.8 3.8
Effects on cows
 Disease incidence, % 68 46 32 32
 Mastitis incidence, % 16 9 6 6
 Replacement rate, % 38 36 29 29
 Calving interval, months 12.0 12.3 12.5 13.0
Effects on milk
 Yield in first lactation 0 0 +200 L +200 L
 Protein content 0 0 0 +0.2 pp
 Cell count 0 0 0 0
  1. Source: Mortality rates: Gulliksen et al. (2009), milk protein: Lidfors and Johansen (2006), and other effects: the questionnaires