Abstract
The NRC (2001) proposes the use of net energy system to express the nutritional requirements of the animal and to evaluate the energy value of foods. In tropical regions, however, information at this level of refinement is still scarce, forcing the nutritionists in those areas to use international system’s data when formulating diets for dairy cattle.
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References
AFRC, 1993. Agricultural and food research council. Energy and requirements of ruminants. Wallingford, Commonwealth Agricultural Bureaux International, 159p.
Brouwer, E., 1965. Report of Sub-Committee on Constants and Factors. Proc 3rd Symp. On Energy Metabolism, EAAP publication no. 11, p. 441–443.
NRC, 2001. National Research Council. Nutrient requirements of dairy cattle. 7 ed., Washington, D.C.: National Academic of Sciences, 381p.
Rodríguez, N.M., W.E. Campos, M.L. Lachica, et al., 2007. A calorimetry system for metabolism trials. Arq. Bras. Med. Vet. Zootec, 59, 495–500.
Valadares, R.F.D., G.A. Broderick, S.C. Valadares Filho, et al., 1999. Effect of replacing alfalfa with high moisture corn on ruminal protein synthesis estimated from excretion of total purine derivatives. J. Dairy Sci., 8, 2686–2696.
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We would like to thank CNPq, CNPq-INCT, FAPEMIG, CAPES and EPAMIG for their cooperation in carrying out this work.
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Borges, A.L.C.C. et al. (2013). Energy value of Tifton-85 (Cynodon spp.) for Gir and F1 Holstein × Gir dairy heifers using the respirometric technique. In: Oltjen, J.W., Kebreab, E., Lapierre, H. (eds) Energy and protein metabolism and nutrition in sustainable animal production. Energy and protein metabolism and nutrition in sustainable animal production, vol 134. Wageningen Academic Publishers, Wageningen. https://doi.org/10.3920/978-90-8686-781-3_19
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DOI: https://doi.org/10.3920/978-90-8686-781-3_19
Publisher Name: Wageningen Academic Publishers, Wageningen
Online ISBN: 978-90-8686-781-3
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