Journal of Dairy Science
Volume 84, Issue 7 , Pages 1698-1706, July 2001

Effects of NutriDense and Waxy Corn Hybrids on the Rumen Fermentation, Digestibility and Lactational Performance of Dairy Cows1

Department of Animal Sciences, University of Kentucky, Lexington 40546-0215

Received 26 October 2000; accepted 13 March 2001.

Article Outline

Abstract 

The objectives of this study were to determine the effects of NutriDense and waxy corn hybrids as silage and grain sources on milk yield, milk composition, digestibility of dietary components, and rumen characteristics. Six multiparous (intact) and six primiparous (ruminally cannulated) Holstein cows were assigned at 72 to 90 d of lactation to a 3 x 6 Latin rectangle design experiment to treatment of: 1) control diet, 2) NutriDense corn diet, and 3) waxy corn diet. Diets consisted of 10.9% alfalfa silage, 32.8% corn silage, 27.9% cracked corn grain, and 28.4% other ingredients (DM basis). Milk, FCM, and milk fat and protein yields were higher for cows fed the waxy diet than those fed the control diet. Milk protein percentage tended to be higher for cows fed the control and waxy diets than those fed the NutriDense diet. Dry matter intake tended to be higher for cows fed the waxy diet than the NutriDense diet. Apparent DM, OM, CP, ADF, NDF, and gross energy digestibilities were similar among dietary treatments, while apparent starch digestibility was higher for the waxy corn than for the NutriDense corn. Rumen NH3-N concentration was higher for cows fed the NutriDense diet than for those fed the control and waxy diets. The proportion of ruminal propionate was higher for the waxy diet than the control diet. NutriDense and waxy corn hybrids can be effective substitutes for conventional yellow dent corn hybrids in lactating dairy cow rations.

Key words: NutriDense corn, waxy corn, digestibility, dairy cows

Abbreviation key: EE, ether extract, NUTR, NutriDense corn (diet)

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References 

  1. Akay V, Jackson JA, Dawson KA. Ruminal fiber fermentation of value added corn silage. J. Dairy Sci. 1999;82(Suppl. 1):88;(Abstr.)
  2. Aldrich JM, Muller LD, Varga GA, Griel LC. Nonstructural carbohydrate and protein effects on fermentation, nutrient flow, and performance of dairy cows. J. Dairy Sci. 1993;76:1091–1105
  3. Allen MS, Oba M, Choi BR. Nutritionist's perspective on selecting corn silage hybrids. In: Proc. 16th Kentucky Ruminant Nutrition Workshop. Kentucky, Lexington: Bardstown, KY. Univ; 1997;p. 9–24
  4. Atwell DG, Jaster EH, Moore KJ, Fernando RL. Evaluation of high oil corn and corn silage for lactating cows. J. Dairy Sci. 1988;71:2689–2698
  5. Chen KH, Huber JT, Theurer CB, Swingle RS, Simas J, Chan SC, et al. Effect of steam flaking of corn and sorghum grains on performance of lactating cows. J. Dairy Sci. 1994;77:1038–1043
  6. Dado RG. Nutritional benefits of speciality corn grain hybrids in dairy diets. J. Dairy Sci. 1999;82(Suppl. 2):197–207
  7. Dado RG, Beek SD. In vitro ruminal starch digestibility in opaque-2 and regular corn hybrids. Anim. Feed Sci. Tech. 1998;73:151–160
  8. Ekinci C, Broderick GA. Effect of processing high moisture ear corn on ruminal fermentation and milk yield. J. Dairy Sci. 1997;80:3298–3307
  9. El-Shazly K, Dehority A, Johnson RR. Effect of starch on the digestion of cellulose in vitro and in vivo by rumen microorganisms. J. Anim. Sci. 1961;20:268–273
  10. Erwin ES, Marco GJ, Emery E. Volatile fatty acid analysis of blood and rumen fluid by gas chromatography. J. Dairy Sci. 1961;44:1768–1771
  11. Fenton TW, Fenton M. An improved procedure for the determination of chromium oxide in feed and feces. Can. J. Anim. Sci. 1979;59:631–634
  12. Herrera-Saldana RE, Gomez-Alarcon R, Torabi M, Huber JT. Influence of synchronizing protein and starch degradation in the rumen on nutrient utilization and microbial protein synthesis. J. Dairy Sci. 1990;73:142–148
  13. Herrera-Saldana RE, Huber JT. Influence of varying protein and starch degradabilities on performance of lactating cows. J. Dairy Sci. 1989;72:1477–1483
  14. Keery CM, Amos HE. Effects of source and level of undegraded intake protein on nutrient use and performance of early lactation cows. J. Dairy Sci. 1993;76:499–513
  15. LaCount DW, Drackley JK, Cicela TM, Clark JH. High oil corn as silage or grain for dairy cows during an entire lactation. J. Dairy Sci. 1995;78:1745–1754
  16. Lentner M, Bishop T. Latin square designs. Experimental Design and Analysis. 2nd ed.. Blacksburg, VA: Valley Book Company; 1993;Pages 262–285
  17. Lykos T, Varga GA, Casper D. Varying degradation rates of total nonstructural carbohydrates: Effects on ruminal fermentation, blood metabolites, and milk production and composition in high producing Holstein cows. J. Dairy Sci. 1997;80:3341–3355
  18. McCarthy RD, Klusmeyer TH, Vicini JL, Clark JH, Nelson DR. Effects of source of protein and carbohydrate on ruminal fermentation and passage of nutrients to the small intestine of lactating cows. J. Dairy Sci. 1989;72:2002–2016
  19. Mohd BMN, Wootton M. In vitro digestibility of hydroxypropyl maize, waxy maize and high amylose maize starches. Starch-Stärke. 1984;36:273–275
  20. Moreira VR, Jimmink J, Satter LD, Vicini JL, Hartnell GF. Effect of corn silage containing high oil, waxy, multileaf, orbm3 corn genetics on feed intake, milk yield, and milk composition of dairy cows. J. Dairy Sci. 2000;83(Suppl. 1):110;(Abstr.)
  21. National Research Council. Nutrient requirements of dairy cattle. 6th rev. ed.. Washington, DC: Natl. Acad. Sci.; 1989;
  22. Parsons CM, Zhang Y, Araba M. Availability of amino acids in high-oil corn. Poultry Sci. 1998;77:1016–1019
  23. Poore MH, Moore JA, Eck TP, Swingle RS, Theurer CB. Effect of fiber source and ruminal starch degradability on site and extent of digestion in dairy cows. J. Dairy Sci. 1993;76:2244–2253
  24. Poore MH, Moore JA, Swingle RS, Eck TP, Brown WH. Response of lactating Holstein cows to diets varying in fiber source and ruminal starch degradability. J. Dairy Sci. 1993;76:2235–2243
  25. Robertson JB, Van Soest PJ. The detergent system of analysis and its application to human foods. In:  James WPT,  Theander D editor. The Analysis of Dietary Fiber. New York, NY: Marcell Dekker; 1981;p. 123–158
  26. SAS/STAT User's Guide: Version 6.12 Edition. 1996. SAS Inst., Inc., Cary, NC.
  27. Satter LD, Slyter LL. Effect of ammonia concentration on rumen microbial protein production in vitro. Br. J. Nutr. 1974;32:199–208
  28. Schroeder JW, Moon YS, Ford JA, Keller WL, Park CS. Waxy corn as a replacement for dent corn fed in diets of lactating Holstein dairy cows. J. Dairy Sci. 1996;79(Suppl. 1):139;(Abstr.)
  29. Sharp WM, Johnson RR, Owens FN. Ruminal VFA production with steers fed whole or ground corn grain. J. Anim. Sci. 1982;55:1505–1514
  30. Sniffen CJ, Robinson PH. Microbial growth and flow as influenced by dietary manipulations. J. Dairy Sci. 1987;70:425–441
  31. Van Soest PJ, Robertson JB, Lewis BA. Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. J. Dairy Sci. 1991;74:3583–3597
  32. Weatherburn MW. Phenol-hypochlorite reaction for determination of ammonia. Anal. Chem. 1967;39:971–974
  33. Weiss WP, Wyatt DJ. Effect of oil content and kernel processing of corn silage on digestibility and milk production by dairy cows. J. Dairy Sci. 2000;83:351–358

PII: S0022-0302(01)74605-X

doi:10.3168/jds.S0022-0302(01)74605-X

Journal of Dairy Science
Volume 84, Issue 7 , Pages 1698-1706, July 2001

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