The efficiency of conversion of metabolisable protein into milk true protein over a range of metabolisable protein intakes

Animal

Volumn 2, Issue 8, 2008, Pages 1193-1202

  Metcalf, J A ^a,d   Mansbridge, R J ^a   Blake, J S ^a   Oldham, J D ^c   Newbold, J R ^b  

^a ADAS BOXWORTH   (United Kingdom)

^b BOCM PAULS Ltd   (United Kingdom)

^c SCOTTISH AGRICULTURAL COLLEGE   (United Kingdom)

^d Nutreco Canada Agresearch   (Canada)

Author keywords

Dairy cows; Metabolisable energy; Metabolisable protein; Nutrition

Indexed keywords

ANIMALIA; BOS;

EID: 46749107147     PISSN: 17517311     EISSN: 1751732X     Source Type: Journal    
DOI: 10.1017/S1751731108002140     Document Type: Conference Paper

References (26)

1. Agriculture and Food Research Council 1990. Technical Committee on Responses to Nutrients, Report No. 5. Nutritive Requirements of Ruminant Animals: Energy. Nutrition Abstracts and Reviews Series B 60, 729-804.
2. Agriculture and Food Research Council 1992. Technical Committee on Responses to Nutrients, Report No. 9. Nutritive Requirements of Ruminant Animals: Energy. Nutrition Abstracts and Reviews Series B 62, 787-835.
3. Agriculture and Food Research Council 1993. Energy and protein requirements of ruminants. An advisory manual prepared by the AFRC Technical Committee on Responses to Nutrients. CAB International, Wallingford, UK.
4. Bequette BJ, Metcalf JA, Wray-Cahen D, Backwell FRC, Sutton JD, Lomax MA, MacRae JA and Lobley GE 1996. Leucine and protein metabolism in the lactating dairy cow mammary gland: responses to supplemental dietary crude protein intake. Journal of Dairy Research 63, 209-222.
5. Forbes JM 2007. Voluntary food intake and diet selection in farm animals, 2nd edition. CABI, Wallingford.
6. Givens DI, Rymer C, Cottrill BR, Offer NW and Thomas C 2004. In Feed in to Milk: An advisory manual (ed. C Thomas), pp. 41-59. Nottingham University Press, Nottingham.
7. Hof G, Tamminga S and Lenaers PJ 1994. Efficiency of protein utilization in dairy cows. Livestock Production Science 38, 169-178.
8. International Dairy Federation 1993. Standard 20B: milk, Determination of Nitrogen content. International Dairy Federation, Brussels, UK.
9. Institut National de la Recherche Agronomique 1988. Alimentation des Bovins, Ovines, et Caprins (ed. R Jarrige). Paris, INRA, p. 370.
10. Jarrige R and Alderman G (eds) 1987. Feed evaluation and protein requirement systems for ruminants. CEC, Luxembourg, 328pp.
11. Krishnamoorthy U, Muscato TV, Sniffen CJ and Van Soest PJ 1982. Nitrogen fractions in selected feedstuffs. Journal of Dairy Science 65, 217-225.
12. Livesey CT, Harrington T, Johnston AM, May SA and Metcalf JA 1998. The effect of diet and housing on the development of sole haemorrhages, white line haemorrhages and heel erosions in Holstein heifers. Animal Science 67, 9-16.
13. Madsen J 1985. The basis for the Nordic protein evaluation system for ruminants. The AAT-PBV system. Acta Agriculture Scandinavica Suppl 25, 9-20.
14. Metcalf JA, Mansbridge RJ, Blake JS, Newbold JR and Oldham JD 1997. Examining the Metabolisable Protein system at ideal protein: energy ratios in dairy cows. Proceedings of the British Society of Animal Science 83.
15. Moorby JM, Dewhurst RJ, Thomas C and Marsden S 1996. The influence of dietary energy source and dietary protein level on milk protein concentration from dairy cows. Animal Science 63, 1-10.
16. National Research Council 1985. Ruminant Nitrogen Usage. Committee on Animal Nutrition, Board of Agriculture, National Research Council, Washington DC. National Academy Press.
17. Newbold JR 1994. Practical application of the metabolisable protein system. In Recent advances in Animal Nutrition (ed. PC Garnsworthy and DJA Cole), pp. 231-264. Nottingham University Press, Nottingham.
18. Newbold JR, Cottrill BR, Mansbridge RJ and Blake JS 1994. Effect of metabolisable protein on silage intake and milk protein yield in dairy cows. Animal Production 58, 455.
19. Nousiainen J, Shingfield KJ and Huhtanen P 2004. Evaluation of milk urea nitrogen as a diagnostic of protein feeding. Journal of Dairy Science 87, 386-398.
20. Oldham JD 1984. Protein-energy interrelationships in dairy cows. Journal of Dairy Science 67, 1090-1114.
21. Oldham JD 1987. Efficiencies of amino acid utilisation. In Feed evaluation and protein requirement systems for ruminants (ed. R Jarrige and G Alderman), pp. 171-186. CEC, Luxemborg.
22. Porter MG, Patterson DC, Steen RWJ, Gordon FJ, 1984. Proceedings of the 7th Silage Conference, Paper 45. Queen's University of Belfast, UK.
23. Subnel AP, Meijer RGM, van Straalen WM and Tamminga S 1994. Efficiency of milk protein production in the DVE protein evaluation system. Livestock Production Science 40, 215-224.
24. Tamminga S, van Straalen WM, Subnel APJ, Meijer RGM, Steg A, Wever CJG and Blok MC 1994. The Dutch protein evaluation system; the DVE/OEB system. Livestock Production Science 40, 139-155.
25. Van Straalen WM, Salaun C, Ven WAG, Rijpkema VS, Hof G and Boxem TJ 1994. Validation of protein evaluation systems by means of milk production experiments with dairy cows. Netherlands Journal of Agricultural Science 42, 89-104.
26. Vérité R and Delaby L 2000. Relation between nutrition, performances and nitrogen excretion in dairy cows. Annales de Zootechnie 49, 217-230.