The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.
The effect of protein supplementation on nitrogen utilization in lactating dairy cows fed grass silage diets.
Abstract
The study set out to examine the effects of supplementing grass silage with various levels of protein concentration and degradability on dietary nitrogen (N) excretion in lactating dairy cows consuming at least 60% forage. Six Holstein/Friesian cows in early to midlactation were offered six diets comprising two levels of crude protein (210 and 290 g/kg DM) and three levels of protein degradability in the concentrate achieved using different amounts of untreated or formaldehyde-treated soybean meal. Despite a difference of almost 100 g/d in N intake, apparent fecal and milk N outputs were not significantly affected. Protein degradability also had no effect on N outputs in feces and milk. However, there was a major effect of both level and degradability of CP on urinary N output. Moreover, an interaction between level and degradability of CP was detected, such that the rate at which urinary N increases with increasing CP degradability was higher on the high-CP than on the low-CP diet. A low level of protein (150 g/kg DM in the diet) and medium to low rumen-degradable protein supplements provided a significant reduction in N excretion without compromising lactational performance (mean 24.8 kg/d), in terms of both milk yield and composition. This study also demonstrated that a high efficiency of N utilization could be achieved on low-CP diets (supplying less than 400 g N/d), with feces being the main route of N excretion, whereas an exponential excretion of urinary N was observed as N intake exceeded 400 g N/d.
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Citations
Cites
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Nutrition Management of Dairy Cows as a Contribution to Pollution Control
Tamminga, S. (1992) · Journal of Dairy Science · doi:10.3168/jds.s0022-0302(92)77770-4 · Cited by 484
Altering Milk Composition by Feeding
Sutton, J. D. (1989) · Journal of Dairy Science · doi:10.3168/jds.s0022-0302(89)79426-1 · Cited by 422
Self-citationEffects of Rumen-Undegradable Protein on Dairy Cow Performance: A 12-Year Literature Review
Santos, F. A. P., Santos, J. E. P., Theurer, C. B., & Huber, J. T. (1998) · Journal of Dairy Science · doi:10.3168/jds.s0022-0302(98)75884-9 · Cited by 321
Factors affecting the intake of grass silage by cattle and prediction of silage intake
Steen, R. W. J., Gordon, F. J., Dawson, L. E. R., Park, R. S., Mayne, C. S., Agnew, R. E., Kilpatrick, D. J., & Porter, M. G. (1998) · Animal Science · doi:10.1017/s1357729800008894 · Cited by 156
Smith, K. A., & Frost, J. P. (2000) · Bioresource Technology · doi:10.1016/s0960-8524(99)00061-9 · Cited by 128
Volatilization of ammonia from cattle urine applied to grassland
Lockyer, D. R., & Whitehead, D. C. (1990) · Soil Biology and Biochemistry · doi:10.1016/0038-0717(90)90040-7 · Cited by 114
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Self-citation
Cited by
Identifying traits to improve the nitrogen economy of wheat: Recent advances and future prospects
Foulkes, M. J., Hawkesford, M. J., Barraclough, P. B., Holdsworth, M. J., Kerr, S., Kightley, S., & Shewry, P. R. (2009) · Field Crops Research · doi:10.1016/j.fcr.2009.09.005 · Cited by 401
Potential of phytofactors to mitigate rumen ammonia and methane production
Szumacher-Strabel, M., & Cieślak, A. (2010) · Journal of Animal and Feed Sciences · doi:10.22358/jafs/66296/2010 · Cited by 90
Henke, A., Dickhoefer, U., Westreicher-Kristen, E., Knappstein, K., Molkentin, J., Hasler, M., & Susenbeth, A. (2017) · Archives of Animal Nutrition · doi:10.1080/1745039x.2016.1250541 · Cited by 62
Broderick, G. A., Brito, A. F., & Colmenero, J. J. O. (2007) · Journal of Dairy Science · doi:10.3168/jds.s0022-0302(07)71624-7 · Cited by 58
Burke, F., Murphy, J. J., O’Donovan, M. A., O’Mara, F. P., Kavanagh, S., & Mulligan, F. J. (2007) · Journal of Dairy Science · doi:10.3168/jds.s0022-0302(07)71574-6 · Cited by 40
Metadata
- Authors
- Castillo, A. R., Kebreab, E., Beever, D. E., Barbi, J. H., Sutton, J. D., Kirby, H. C., & France, J.
- Venue
- Journal of Animal Science
- Publisher
- Oxford University Press (OUP)
- Published
- 2001
- Volume
- 79
- Issue
- 1
- Pages
- 247
- ISSN
- 0021-8812 (ISSN-L)
- OpenAlex
- W2185823919
- Cited by
- 288
- References
- 13
- FWCI
- 17.22
- Type
- journal article
- Language
- en
- Open access
- closed
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- Castillo, A. R., Kebreab, E., Beever, D. E., Barbi, J. H., Sutton, J. D., Kirby, H. C., & France, J. (2001). The effect of protein supplementation on nitrogen utilization in lactating dairy cows fed grass silage diets. Journal of Animal Science. https://doi.org/10.2527/2001.791247x
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