Stochastic simulation of rumen degradable protein surplus in grazing dairy cows

Animal Feed Science and Technology

Volumn 143, Issue 1-4, 2008, Pages 280-295

  Pacheco, David ^a  

^a AGRESEARCH GRASSLANDS   (New Zealand)

Author keywords

Dairy cow; Forage protein degradation; Grazing; Nitrogen utilisation; Stochastic

Indexed keywords

BOS;

EID: 44349145987     PISSN: 03778401     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.anifeedsci.2007.05.015     Document Type: Article

References (35)

1. Agnew R.E., Park R.S., Mayne C.S., and Laidlaw A.S. Potential of near infrared spectroscopy to predict the voluntary intake of grazed grass. Anim. Feed Sci. Technol. 115 (2004) 169-178
2. Burke J.L. Determination of Digestion Parameters to Develop and Evaluate Forage Mixtures for Pasture-Fed Ruminants: A Thesis Presented in Partial Fulfilment of the Requirements for the Degree of Doctor of Philosophy (2004), Massey University, Palmerston North, New Zealand
3. Chaves A.V., Waghorn G.C., Brookes I.M., and Woodfield D.R. Effect of maturation and initial harvest dates on the nutritive characteristics of ryegrass (Lolium perenne L.). Anim. Feed Sci. Technol. 127 (2006) 293-318
4. Christensen B.J. Financial risk modelling and econometric inference. Acta Appl. Math. 78 (2003) 73-85
5. Corson D.C., Waghorn G.C., Ulyatt M.J., and Lee J. NIRS: forage analysis and livestock feeding. Proc. NZ Grass. Assoc. 61 (1999) 127-132
6. Cosgrove G.P., Betteridge K., Thomas V.J., and Corson D.C. A sampling strategy for estimating dairy pasture quality. Proc. NZ Soc. Anim. Prod. 58 (1998) 25-28
7. Dijkstra J., Neal H.D.S.C., Beever D.E., and France J. Simulation of nutrient digestion, absorption and outflow in the rumen: model description. J. Nutr. 122 (1992) 2239-2256
8. Dzama K., Walter J.P., Ruvuna F., Sanders J.O., and Chimonyo M. Index selection of beef cattle for growth and milk production using computer simulation modelling. S. Afr. J. Anim. Sci. 31 (2001) 65-75
9. Fox D.G., Tedeschi L.O., Tylutki T.P., Russell J.B., Van Amburgh M.E., Chase L.E., Pell A.N., and Overton T.R. The Cornell net carbohydrate and protein system model for evaluating herd nutrition and nutrient excretion. Anim. Feed Sci. Technol. 112 (2004) 29-78
10. Garcia S.C., and Holmes C.W. Seasonality of calving in pasture-based dairy systems: Its effects on herbage production, utilisation and dry matter intake. Austr. J. Exp. Agric. 45 (2005) 1-9
11. GoldSim Technology Group LLC, 2006. User's Guide GoldSim. Issaquah, WA, USA.
12. Holden N.M., and Brereton A.J. An assessment of the potential impact of climate change on grass yield in Ireland over the next 100 years. Irish J. Agric. Food Res. 41 (2002) 213-226
13. Jonker J.S., Kohn R.A., and Erdman R.A. Using milk urea nitrogen to predict nitrogen excretion and utilisation efficiency in lactating dairy cows. J. Dairy Sci. 81 (1998) 2681-2692
14. Kebreab E., France J., Mills J.A., Allison R., and Dijkstra J. A dynamic model of N metabolism in the lactating dairy cow and an assessment of impact of N excretion on the environment. J. Anim. Sci. 80 (2002) 248-259
15. Kolver E.S., and Muller L.D. Performance and nutrient intake of high producing Holstein cows consuming pasture or a total mixed ration. J. Dairy Sci. 81 (1998) 1403-1411
16. Kolver E.S., Napper A.R., Copeman P.J.A., and Muller L.D. A comparison of New Zealand and overseas Holstein Friesian heifers. Proc. NZ Soc. Anim. Prod. 60 (2000) 265-269
17. Lapierre H., Berthiaume R., Raggio G., Thivierge M.C., Doepel L., Pacheco D., Dubreuil P., and Lobley G.E. The route of absorbed nitrogen into milk protein. Anim. Sci. 80 (2005) 11-22
18. Lile J.A., Blackwell M.B., Thomson N.A., Penno J.W., Macdonald K.A., Nicholas P.K., Lancaster J., and Coulter M. Practical use of the rising plate meter (RPM) on New Zealand dairy farms. Proc. NZ Grass. Assoc. 63 (2001) 159-164
19. Livestock Improvement Corporation, 2005. Dairy Statistics 2004-2005. Hamilton, NZ.
20. Longhurst R.D., O'Connor M.B., Bremner K., and Matthews L. Animal constraints to pasture treated with farm dairy effluent: preference under grazing and issues of faecal contamination. NZ J. Agric. Res. 43 (2000) 501-507
21. Mertens D.R. Regulation of forage intake. In: Fahey Jr. G.C., Collins M., Mertens D.R., and Moser L.E. (Eds). Forage Quality, Evaluation and Utilisation. (1994), American Society of Agronomy, Inc., Madison, WI, USA 450-493
22. National Research Council (NRC), 2001. Nutrient Requirements of Dairy Cattle. National Academy Press, Washington, DC, USA.
23. Pomar C., Kyriazakis I., Emmans G.C., and Knap P.W. Modeling stochasticity: dealing with populations rather than individual pigs. J. Anim. Sci. 81 (2003) E178-E186
24. Reagan M.T., Najm H.N., Debusschere B.J., Le Maitre O.P., Knio O.M., and Ghanem R.G. Spectral stochastic uncertainty quantification in chemical systems. Combust. Theor. Model. 8 (2004) 607-632
25. Reid R.L., Jung G.A., and Thayne W.V. Relationships between nutritive quality and fiber components of cool season and warm season forages: a retrospective study. J. Anim. Sci. 66 (1998) 1275-1291
26. Repetto J.L., Gonzalez J., Cajarville C., Alvir M.R., and Rodriguez C.A. Relationship between ruminal degradability and chemical composition of dehydrated lucerne. Anim. Res. 52 (2003) 27-36
27. Reynal S.M., and Broderick G.A. Effect of dietary level of rumen-degraded protein on production and nitrogen metabolism in lactating dairy cows. J. Dairy Sci. 88 (2005) 4045-4064
28. Sanderson M.A., Rotz C.A., Fultz S.W., and Rayburn E.B. Estimating forage mass with a commercial capacitance meter, rising plate meter, and pasture ruler. Agron. J. 93 (2001) 1281-1286
29. Swain P.S. Efficient attenuation of stochasticity in gene expression through post-transcriptional control. J. Mol. Biol. 344 (2004) 965-976
30. Tavendale M.H., Pacheco D., Lane G.A., Fraser K., Death A.F., Burke J.L., Hickey M.J., and Cosgrove G.P. The effects of ryegrass varieties differing in soluble sugar content on the rumen fermentation of amino acids and consequences for milk flavour chemistry. Proc. NZ Grass. Assoc. 68 (2006) 261-265
31. Tedeschi L.O., Fox D.G., Sainz R.D., Barioni L.G., de Medeiros S.R., and aBoin C. Mathematical models in ruminant nutrition. Sci. Agric. (Piracicaba, Braz.) 62 (2005) 76-91
32. Ulyatt M.J. The feeding value of herbage: can it be improved?. NZ Agric. Sci. 15 (1981) 200-205
33. Unal Y., and Garnsworthy P.C. Estimation of intake and digestibility of forage-based diets in group-fed dairy cows using alkanes as markers. J. Agric. Sci. (Cambridge) 133 (1999) 419-425
34. Wang Y., Douglas G.B., Waghorn G.C., Barry T.N., and Foote A.G. Effect of condensed tannins in Lotus corniculatus upon lactation performance in ewes. J. Agric. Sci. (Cambridge) 126 (1996) 353-362
35. Wilson G.F., Moller S., Parker W.J., and Hodgson J. Seasonal differences in pasture composition and nutritional implications. 1995 Dairy Farming Annual (1995), Massey University 46-56