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Comparison of dairy cow breeds under Irish grass-based spring milk production systems

Comparison of dairy cow breeds under Irish grass-based spring milk production systems. Project Team P. Dillon, F.Buckley, J. Mee, N. Byrne and M. Herlihy. Objectives. To compare the performance of different breeds of dairy cows on two pasture based systems of production

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Comparison of dairy cow breeds under Irish grass-based spring milk production systems

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  1. Comparison of dairy cow breeds under Irish grass-based spring milk production systems Project Team P. Dillon, F.Buckley, J. Mee, N. Byrne and M. Herlihy

  2. Objectives • To compare the performance of different breeds of dairy cows on two pasture based systems of production • To establish the possible role of a crossbreed dairy cow in an Irish system of milk production

  3. Experiment Design • Breeds compared • Holstein Friesian • Montbeliarde • Normande • Montbeliard* Holstein Friesian • Normande*Holstein Friesian • Norweigan Red • Feeding Systems • 650 kg V 1250 kg/cow

  4. Milk production 01-03

  5. Montbeliarde

  6. Normande

  7. Milk production 2001-2003 HF MBX NR NMX MB NM

  8. Reproductive Performance (Ballydague 2003)

  9. Reproductive Performance (Ballydague 01-03)

  10. Preg. to 1st serviceHF x Montbeliarde Hybrid Vigour 10% units or 25% 42% 50% 37%

  11. Preg. to 1st serviceHF x Normande Hybrid Vigour 11 % units or 24% 42% 57% 50%

  12. Genetic Improvement

  13. Body Weight

  14. Body Condition score

  15. Summary • Holstein Friesian: • Numerically highest milk yield • Significantly higher fat+protein yield • Highest response to concentrate • Lowest Body Condition Score • Greatest body condition score loss over total lactation • Poorest reproduction

  16. Summary • Montbeliarde: • Lower milk yield compared to HF • Reproductive performance very dissappointing • Normande: • Lowest milk yield • Excellent reproductive performance

  17. Summary • Norwegian Red: • Numerically lower milk yield Vs HF • Lowest live weight • Good Body Condition Score • Excellent reproductive performance • Cross breeds: • Evidence of Hybrid Vigour for both milk yield and reproductive performance

  18. Discussion

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