DOI QR코드

DOI QR Code

Evaluation of Urinary Nitrogen Excretion from Plasma Urea Nitrogen in Dry and Lactating Cows

  • Kume, S. ;
  • Numata, K. ;
  • Takeya, Y ;
  • Miyagawa, Y ;
  • Ikeda, S. ;
  • Kitagawa, M. ;
  • Nonaka, K. ;
  • Oshita, T. ;
  • Kozakai, T.
  • Received : 2007.12.14
  • Accepted : 2008.04.04
  • Published : 2008.08.01

Abstract

Data of 42 balance measurements from dry and lactating Holstein cows and blood and urine samples from 24 Japanese Black cows were collected to evaluate the potential for predicting urinary nitrogen (N) excretion from plasma urea nitrogen (PUN). Similar positive correlations were obtained between N intake and apparent N absorption in dry and lactating cows. The regression equations of N intake on urinary N excretion varied in dry and lactating cows, and the difference of urinary N excretion between dry and lactating cows was due to the N secretion into milk. Highly positive correlations were observed between urinary N contents and urinary urea N in Japanese Black cows, and urinary urea N increased with increasing PUN. There were positive correlations between N intake and PUN in dry and lactating cows, but PUN and urinary N excretion in lactating cows were higher than in dry cows. There were positive correlations between PUN and urinary N excretion per BW in dry and lactating cows. Although urinary N excretion could be calculated as (N clearance rate of kidneys)PUNBW, high N clearance rate of kidneys, such as 2.08 L/d/kg BW, may be suitable to calculate urinary N excretion in lactating cows, compared with 1.33 L/d/kg BW in dry cows.

Keywords

Dry Cow;Lactating Cow;Nitrogen Clearance;Plasma Urea Nitrogen

References

  1. Agriculture, Forestry, and Fisheries Research Council Secretariat, 1994. Japanese Feeding Standard for Dairy Cattle (1994). Chuouchikusankai. Tokyo. Japan.
  2. Adachi, A., T. Kusuhara, I. Nonaka and F. Terada. 2006. Effect of close-up dry period protein level on preparturiental nitrogen balance and lactating performance of primigravid and multiparous Holstein cows. Asian-Aust. J. Anim. Sci. 19:831-836. https://doi.org/10.5713/ajas.2006.831
  3. Kojima, H., S. Kume, K. Nonaka, T. Oshita, T. Kozakai and H. Hirooka. 2005. Effects of feeding and animal performance on nitrogen, phosphorus and potassium excretion by Holstein cows. Anim. Sci. J. 76:139-145. https://doi.org/10.1111/j.1740-0929.2005.00249.x
  4. Kohn, R. A., M. Dinneen and Russek-Cohen. 2005. Using blood urea nitrogen to predict nitrogen excretion and efficiency of nitrogen utilization in cattle, sheep, goats, horses, pigs, and rats. J. Anim. Sci. 83:79-889.
  5. Dhiman, T. R. and L. D. Satter. 1997. Yield response of dairy cows fed different proportions alfalfa silage and corn silage. J. Dairy Sci. 80:2069-2082. https://doi.org/10.3168/jds.S0022-0302(97)76152-6
  6. Kamiya, Y., M. Kamiya and T. Tanaka. 2006. The effect of prepartum diet on nitrogen and major mineral balance of dairy cows during parturition in summer. Asian-Aust. J. Anim. Sci. 19:1415-1421. https://doi.org/10.5713/ajas.2006.1415
  7. Bannink, A., A. Valk and A. M. Van Vuuren. 1999. Intake and excretion of sodium, potassium, and nitrogen and the effects on urine production by lactating dairy cows. J. Dairy Sci. 82:1008-1018. https://doi.org/10.3168/jds.S0022-0302(99)75321-X
  8. Agriculture, Forestry and Fisheries Research Council Secretariat, 2000. Japanese Feeding Standard for Beef Cattle (2000). Chuouchikusankai. Tokyo. Japan.
  9. Kume, S., K. Nonaka, T. Oshita, T. Kozakai and H. Kojima. 2004. Potassium excretion of dry, pregnant and lactating cows fed forage. Nihon Chikusan Gakkaiho 75:179-184 (In Japanese, with English abstract). https://doi.org/10.2508/chikusan.75.179
  10. Kume, S., K. Nonaka, T. Oshita, T. Kozakai and H. Hirooka. 2008. Effects of urinary excretion of nitrogen, potassium and sodium on urine volume in dairy cows. Livest. Sci. 115:28-33. https://doi.org/10.1016/j.livsci.2007.06.003
  11. Murphy, M. R. 1992. Water metabolism of dairy cattle. J. Dairy Sci. 75:326-333. https://doi.org/10.3168/jds.S0022-0302(92)77768-6
  12. Marini, M. R. and M. E. Van Amburgh. 2005. Partition of nitrogen excretion in urine and the feces of Holstein replacement heifers. J. Dairy Sci. 88:1778-1784. https://doi.org/10.3168/jds.S0022-0302(05)72852-6
  13. Statistical Analysis System (SAS). 1997. SAS/STAT Software: Changes and Enhancement Through Release 6.12. SAS Institute, Cary, NC.
  14. National Research Council. 2001. Nutrient requirements of dairy cattle. 7th. rev. ed. Natl.Acad.Sci., Washington, DC.
  15. Kume, S., T. Toharmat, K. Nonaka, T. Oshita, T. Nakui and J. H. Ternouth. 2001. Relationships between crude protein and mineral concentrations in alfalfa and value of alfalfa silage as a mineral source for periparturient cows. Anim. Feed Sci. Tech. 93:157-168. https://doi.org/10.1016/S0377-8401(01)00281-4
  16. Tamminga, S. 1992. Nutrition management of dairy cows as a contribution to pollution control. J. Dairy Sci. 75:343-357.

Cited by

  1. Relationships between urine pH and electrolyte status in cows fed forages vol.82, pp.3, 2011, https://doi.org/10.1111/j.1740-0929.2010.00853.x

Acknowledgement

Supported by : Japan Society for the Promotion of Science