Technical note: Nitrogen isotopic fractionation can be used to predict nitrogen-use efficiency in dairy cows fed temperate pasture

Journal of Animal Science

Volumn 91, Issue 12, 2013, Pages 5785-5788

  Cheng, L ^a   Sheahan, A J ^b   Gibbs, S J ^a   Rius, A G ^b,d   Kay, J K ^b   Meier, S ^b   Edwards, G R ^a   Dewhurst, R J ^c   Roche, J R ^b  

^a LINCOLN UNIVERSITY   (New Zealand)

^b DAIRYNZ   (New Zealand)

^c ANIMAL AND GRASSLAND RESEARCH AND INNOVATION CENTRE   (Ireland)

^d UNIVERSITY OF TENNESSEE   (United States)

Author keywords

Nitrogen 15; Rumen degradable protein; Sustainability; Urea utilization

Indexed keywords

NITROGEN; UREA;

ANIMAL; ANIMAL DISEASE; ANIMAL FOOD; ANIMAL HUSBANDRY; ARTICLE; CATTLE; CHEMISTRY; CLIMATE; DIET; DIET SUPPLEMENTATION; FEMALE; LACTATION; METABOLISM; MILK; PHYSIOLOGY;

ANIMAL FEED; ANIMAL HUSBANDRY; ANIMAL NUTRITIONAL PHYSIOLOGICAL PHENOMENA; ANIMALS; CATTLE; CLIMATE; DIET; DIETARY SUPPLEMENTS; FEMALE; LACTATION; MILK; NITROGEN; UREA;

EID: 84888159296     PISSN: 00218812     EISSN: 15253163     Source Type: Journal    
DOI: 10.2527/jas.2012-5378     Document Type: Article

References (16)

1. Cheng, L., R. Dewhurst, J. Larkin, F. Buckley, C. Thackaberry, and G. Edwards. 2010. The relationship between nitrogen use efficiency and isotopic fractionation in dairy cows using milk samples collected in the morning or afternoon. J. Dairy. Sci. 93. E-Suppl. 1:441.
2. Cocimano, M. R., and R. A. Leng. 1967. Metabolism of urea in sheep. Br. J. Nutr. 21:353-371.
3. Corson, D. G., G. C. Waghorn, M. J. Ulyatt, and J. Lee. 1999. NIRS: Forage analysis and livestock feeding. In: Proc. NZ Grassland. Assoc. 61:127-132.
4. Dowman, M., and F. Collins. 1982. The use of enzymes to predict the digestibility of animal feeds. J. Sci. Food Agric. 33:689-696.
5. Halley, D. J., M. Minagawa, M. Niemin, and E. Gaare. 2010. Diet: Tissue stable isotope fractionation of carbon and nitrogen in blood plasma and whole blood of male reindeer. Polar Biol. 33:1303-1309.
6. Litherland, A. J., and M. G. Lambert. 2007. Factors affecting the quality of pastures and supplements produced on farms. In: P. V. Rattray, I. M. Brookes, and A. M. Nicol, editors, Pasture and supplements for grazing animals. Soc. Anim. Prod., NZ. p. 81.
7. Macko, S. A., M. L. Fogel, P. E. Hare, and T. C. Hoering. 1987. Isotopic fraction of nitrogen and carbon in the synthesis of amino acids by microorganisms. Chem. Geol. 65:79-92.
8. Mugerwa, J. S., and H. R. Conrad. 1971. Relationship of dietary nonprotein nitrogen to urea kinetics in dairy cows. J. Nutr. 101:1331-1342.
9. Oltner, R., M. Emanuelson, and H. Wiktorsson. 1985. Urea concentrations in milk in relation to milk yield, live weight, lactation number and amount and composition of feed given to dairy cows. Livest. Prod. Sci. 12:47-57.
10. Parker, D. S., M. A. Lomax, C. J. Seal, and J. C. Wilton. 1995. Metabolic implications of ammonia production in the ruminant. Proc. Nutr. Soc. 54:549-563.
11. Reynolds, C. K, and N. B. Kristensen. 2008. Nitrogen recycling through the gut and the nitrogen economy of ruminants: Asynchronous symbiosis. J. Anim. Sci. Suppl. 86(E-Suppl.1):E293-E305.
12. Roche, J. R., L. R. Turner, J. M. Lee, D. C. Edmeades, D. J. Donaghy, K. A. Macdonald, J. W. Penno, and D. P. Berry. 2009. Climate, herbage quality and milk production in pastoral systems. 2. Temporal patterns and intra-relationships in herbage quality parameters. Anim. Prod. Sci. 49:200-210.
13. Roughan, G. P., and R. Hollan. 1977. Predicting in-vivo digestibilities of herbage by exhaustive enzymatic hydrolysis of cell walls. J. Sci. Food Agric. 28:1057-1064.
14. Sick, H., N. Roos, E. Saggau, K. Haas, V. Meyn, B. Walch, and N. Trugo. 1997. Amino acid utilization and isotope discrimination of amino nitrogen in nitrogen metabolism in rat liver in vivo. Z. Ernahrungswiss. 36:340-346.
15. Wattiaux, M. A., and J. D. Reed. 1995. Fractionation of nitrogen isotopes by mixed ruminal bacteria. J. Anim. Sci. 73:257-266.
16. Zhu, L. H., L. E. Armentano, D. R. Bremmer, R. R. Grummer, and S. J. Bertics. 2000. Plasma concentration of urea, ammonia, glutamine around calving, and the relation of hepatic triglyceride, to plasma ammonia removal and blood acid-base balance. J. Dairy Sci. 83:734-740.