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Table 1 Summary of dietary investigation and recommended changes following review a nutritional assessment on an Irish dairy farm

From: An investigation into reduced milk production following dietary alteration on an Irish dairy farm

Diet Details   Early lactation cows1 (estimated yield 32 L2) Late lactation cows1 (estimated yield 16 L2) Dry Cows1  
Diet in use up to nutritional assessment Composition TMR: 15 kg 1st cut silage;15 kg 2nd cut silage; 20 kg maize silage; 2 kg barley; 2 kg wheat TMR: 7.5 kg 1st cut silage; 7.5 kg 2nd cut silage; 10 kg maize silage; dry cow mineral
   In-Parlour: 8 kg parlour blend 1 (table 5) In-Parlour: 2 kg parlour blend 1 (table 5)   
  Energy3 129% 155% 93%  
  Protein3 146% 155% 110%  
  Appetite3 115% 99% 56%  
Diet advised at nutritional assessment Composition TMR: 12.5 kg 1st cut silage; 12.5 kg 2nd cut silage; 18 kg maize silage TMR: 7.5 kg 1st cut
silage; 7.5 kg 2nd cut
silage; 10 kg maize
silage; dry cow mineral
Within two weeks of calving: TMR: Ad-lib 50:50 grass/maize silage
   In-Parlour: 8 kg blend 2 (table 5) In-Parlour: 1 kg blend 2 (table 5)   
  Energy3 99.6% 101% 93% NA
  Protein3 118% 97% 110% NA
  Appetite3 97.6% 68% 56% NA
  1. 1Body weight of all cows was evaluated at 650 kg.2All milk production was evaluated at 3.20% protein and 4.00% fat. 3Percent of requirements supplied.