The interaction of harvesting time of day of switchgrass hay and ruminal degradability of supplemental protein offered to beef steers

Journal of Animal Science

Volumn 86, Issue 1, 2008, Pages 159-166

  Huntington, G B ^a   Burns, J C ^a  

^a NORTH CAROLINA STATE UNIVERSITY   (United States)

Author keywords

Beet steer; Panicum virgatum; Protein degradability; Switchgrass

Indexed keywords

ANIMAL; ANIMAL DISEASE; ANIMAL FOOD; ARTICLE; CATTLE; CLINICAL TRIAL; CONTROLLED CLINICAL TRIAL; CONTROLLED STUDY; DIET; DIET SUPPLEMENTATION; DIGESTION; GROWTH, DEVELOPMENT AND AGING; MALE; METABOLISM; PHYSIOLOGY; POACEAE; PROTEIN INTAKE; RANDOMIZED CONTROLLED TRIAL; RUMINANT STOMACH; TIME;

ANIMAL FEED; ANIMAL NUTRITION PHYSIOLOGY; ANIMALS; CATTLE; DIET; DIETARY PROTEINS; DIETARY SUPPLEMENTS; DIGESTION; MALE; POACEAE; RUMEN; TIME FACTORS;

BETA VULGARIS SUBSP. VULGARIS; PANICUM VIRGATUM;

EID: 38149134597     PISSN: 00218812     EISSN: None     Source Type: Journal    
DOI: 10.2527/jas.2006-701     Document Type: Article

References (23)

1. AOAC. 1999. Official Methods of Analysis. 16th ed. Assoc. Off. Anal. Chem., Arlington, VA.
2. Archibeque, S. L., G. B. Huntington, and J. C. Burns. 2001. Urea flux in beef steers: Effects of forage species and nitrogen fertilization. J. Anim. Sci. 79:1937-1943.
3. Bodine, T. N., and H. T. Purvis, II. 2003. Effects of supplemental energy and/or degradable intake protein on performance, grazing behavior, intake, digestibility, and fecal and blood indices by beef steers grazed on dormant native tallgrass prairie. J. Anim. Sci. 81:304-317.
4. Bodine, T. N., H. T. Purvis, II, C. J. Ackerman, and C. L. Goad. 2000. Effects of supplementing prairie hay with corn and soybean meal on intake, digestion, and ruminal measurements by beef steers. J. Anim. Sci. 78:3144-3154.
5. Buntinx, S. E., K. R. Pond, D. S. Fisher, and J. C. Burns. 1997. The utilization of multidimensional scaling to identify forage characteristics associated with preference in sheep. J. Anim. Sci. 75:1641-1650.
6. Burns, J. C., D. S. Fisher, and G. E. Rottinghaus. 2006. Grazing influences on mass, nutritional value, and persistence of stockpiled Jesup tall fescue without and with novel and wild-type fungal endophytes. Crop Sci. 46:1898-1912.
7. Burns, J. C., H. F. Mayland, and D. S. Fisher. 2005. Dry matter intake and digestion of alfalfa harvested at sunset and sunrise. J. Anim. Sci. 83:262-270.
8. Fisher, D. S., J. C. Burns, and H. F. Mayland. 2005. Ruminant selection among switchgrass hays cut at either at sundown or sunup. Crop Sci. 45:1394-1402.
9. Fisher, D. S., H. F. Mayland, and J. C. Burns. 1999. Variation in ruminant preference for tall fescue hays cut a sundown or sunup. J. Anim. Sci. 77:762-768.
10. Fisher, D. S., H. F. Mayland, and J. C. Burns. 2002. Variation in ruminant preference for alfalfa hays cut a sunup and sundown. Crop Sci. 42:231-237.
11. Hoover, W. H., and S. R. Stokes. 1991. Balancing carbohydrates and proteins for optimum rumen microbial yield. J. Dairy Sci. 74:3630-3644.
12. Huntington, G. B., and J. C. Burns. 2007. Afternoon harvest increases readily fermentable carbohydrate concentration and voluntary intake of gamagrass and switchgrass baleage by beef steers. J. Anim. Sci. 85:276-284.
13. Lee, M. R. F., L. J. Harris, J. M. Moorby, M. O. Humphreys, M. K. Theodorou, J. C. MacRae, and N. D. Scollan. 2002. Rumen metabolism and nitrogen flow to the small intestine in steers offered Lolium perenne containing different levels of water-soluble carbohydrate. Anim. Sci. 74:587-596.
14. Licitra, G., T. M. Hernandez, and P. J. Van Soest. 1996. Standardization of procedures for N fractionation of ruminant feeds. Anim. Feed Sci. Technol. 57:347-358.
15. Magee, K., M. H. Poore, J. C. Burns, and G. B. Huntington. 2005. Nitrogen metabolism of beef steers fed gamagrass or orchardgrass hay with or with a supplement. Can. J. Anim. Sci. 85:107-109.
16. Marsh, W. H., B. Fingerhut, and E. Kirsch. 1957. Determination of urea N with the diacetyl method and an automatic dialyzing apparatus. Am. J. Clin. Pathol. 28:681-688.
17. Mayland, H. F., G. E. Shewmaker, P. A. Harrison, and N. J. Chatterton. 2000. Nonstructural carbohydrates in tall fescue cultivars: Relationship to animal preference. Agron. J. 92:1203-1206.
18. NRC. 1996. Nutrient Requirements of Beef Cattle. 7th ed. National Academy Press, Washington, DC.
19. Olson, K. C., R. C. Cochran, T. J. Jones, E. S. Vanzant, E. C. Titgemeyer, and D. E. Johnson. 1999. Effects of ruminal administration of supplemental degradable intake protein and starch on utilization of low-quality warm-season grass hay by beef steers. J. Anim. Sci. 77:1016-1025.
20. Orr, R. J., P. D. Penning, A. Harvery, and R. A. Champion. 1997. Diurnal patterns on intake rate by sheep grazing monocultures of ryegrass or white clover, Appl. Anim. Behav. Sci. 52:65-77.
21. Tilley, J. M., and R. A. Terry. 1963, A two-stage technique for in vitro digestion of forage crops. J. Br. Grassl. Soc. 18:104-111.
22. Witt, M. W., L. A. Sinclair, R. G. Wilkinson, and P. J. Buttery. 2000. The effects of synchronizing the rate of dietary energy and nitrogen supply to the rumen on milk production and metabolism of ewes offered grass silage based diets. Anim. Sci. 71:187-195.
23. Van Soest, P. J., J. B. Robertson, and B. A. Lewis. 1991. Methods for dietary fiber, neutral detergent fiber, and non-starch polysaccharides in relation to animal nutrition. J. Dairy Sci. 74:3583-3597.