Duration 2 - 3 years Team and Leader  Drs H. Wicks, R. Fallon, L. Dawson, A. Carson, C.S. Mayne and A. Wylie Organisations Involved ARINI, Hillsborough; Newforge; Teagasc, Grange R.O.I. Background and Summary Current recommendations in the UK and Ireland suggest that restricted feeding of calves (up to 8 weeks of age) of a milk replacer containing 20 to 23% crude protein is adequate to meet the calf?s protein requirements. The daily allowance of milk replacer of 450 ? 750 g DM/d (at 12.5% DM concentration) fed in association with an ad libitum concentrate based feed is...

Duration 2.5 years, commencing February 2006 Team and Leader C. Ferris, N.O’Connell, D.Patterson, (ARINI, Hillsborough), M. McCoy (Veterinary Science Division) Organisations involved ARINI, VSD Background and Summary The higher nutrient requirements of high genetic merit dairy cows have been clearly established in a number of recent studies.  Meeting these higher nutrient requirements involves either increasing the nutrient density of the diet, and/or increasing total dry matter intake.  Many studies have examined ‘nutritional strategies’ by which feed intake can be...

Duration 3 years Team and Leader Lynne Dawson and Ian McCluggage Organisations involved ARINI & CAFRE Background and Summary Rearing heifer replacements represents one of the main costs in any dairy enterprise.  Recent Greenmount benchmarking data (CAFRE, 2005) indicated that the average total cost (excluding labour) of rearing heifers was £745 per heifer and that a 37% improvement in net farm profit could be achieved through a 10% reduction in heifer rearing costs.   Within heifer rearing, calf mortality represents a major economic and welfare cost.  Recent on-farm data...

Duration 3 years commencing October 2003 Team and Leader Arnoud Hameleers, Sinclair Mayne, Nick Friggens Organisations Involved ARINI, Department of Agriculture and Rural Development for Northern Ireland, Danish Institute of Agricultural Sciences Background and Summary Supplementation of forage with concentrates is an important management tool to achieve improved efficiency and economic sustainability of dairy cow production systems. The current approach to rationing of dairy cow diets is to evaluate the basal forage, combine this with target milk yield and formulate a diet...

Duration 4 years commencing January 2004 Pictured at the Handover of Final Report on Low Input Forages to AgriSearch Team and Leader Arnoud Hameleers, Lindsay Easson and Peter Frost Organisations Involved Agriculture Research Institute of Northern Ireland and Department ofAgriculture and Rural Development for Northern Ireland. Background and Summary Proposed changes in the Common Agricultural Policy (CAP) will probably result in an extensification of land use in Northern Ireland agriculture. Land will have to be kept in `an agricultural state`. Possibly, levels of part time farming and the use of contractors will increase.  Dairy farmers...