| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Department of Animal Science Michigan State University, East Lansing 48824-1225
Corresponding author: M. S. Allen; e-mail: allenm{at}pilot@msu.edu.
The effects of increasing concentrations of dried, pelleted beet pulp substituted for high-moisture corn on intake, milk production, and chewing behavior were evaluated using eight ruminally and duodenally cannulated multiparous Holstein cows in a duplicated 4 x 4 Latin square design with 21-d periods. Cows were 79 ± 17 (mean ± SD) d in milk at the beginning of the experiment. Experimental diets with 40% forage (corn silage and alfalfa silage) and 60% concentrate contained 0, 6.1, 12.1, or 24.3% beet pulp substituted for high-moisture corn on a dry matter basis. Diet concentrations of neutral detergent fiber (NDF) and starch were 24.3 and 34.6% (0% beet pulp), 26.2 and 30.5% (6% beet pulp), 28.0 and 26.5% (12% beet pulp), and 31.6 and 18.4% (24% beet pulp), respectively. Increasing beet pulp in the diet caused a linear decrease in dry matter intake (DMI). Time spent eating per day and per kilogram of DMI increased, and sorting against NDF tended to increase, with added beet pulp. Substituting beet pulp for corn caused a quadratic response in milk fat yield, with the highest yield for the 6% beet pulp treatment. A tendency was detected for a similar quadratic response in 3.5% fat-corrected milk yield. Lower plasma insulin concentration may have resulted in lower body condition gain for cows fed diets with higher beet pulp concentration. Partial substitution of pelleted beet pulp for high-moisture corn decreased intake but also may have permitted greater fat-corrected milk yield.
Key Words: beet pulp • high-moisture corn • milk yield • ruminal fill
Abbreviation key: BP = beet pulp, 0BP = 0% beet pulp treatment, 6BP = 6% beet pulp treatment, 12BP = 12% beet pulp treatment, 24BP = 24% beet pulp treatment, HMC = high-moisture corn, INDF = indigestible NDF, pdNDF = potentially digestible NDF
This article has been cited by other articles:
|
|
 |
|
  W. P. Weiss, N. R. St-Pierre, and L. B. Willett Varying type of forage, concentration of metabolizable protein, and source of carbohydrate affects nutrient digestibility and production by dairy cows J Dairy Sci, November 1, 2009; 92(11): 5595 - 5606. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. I. Borucki Castro, L. E. Phillip, H. Lapierre, P. W. Jardon, and R. Berthiaume The Relative Merit of Ruminal Undegradable Protein from Soybean Meal or Soluble Fiber from Beet Pulp to Improve Nitrogen Utilization in Dairy Cows J Dairy Sci, October 1, 2008; 91(10): 3947 - 3957. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. L. Bauer, D. E. Schimek, J. J. Reed, J. S. Caton, P. T. Berg, and G. P. Lardy Influence of pressed beet pulp and concentrated separator by-product on intake, gain, efficiency of gain, and carcass composition of growing and finishing beef steers J Anim Sci, September 1, 2007; 85(9): 2290 - 2297. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Seo, C. Lanzas, L. O. Tedeschi, and D. G. Fox Development of a Mechanistic Model to Represent the Dynamics of Liquid Flow Out of the Rumen and to Predict the Rate of Passage of Liquid in Dairy Cattle J Dairy Sci, February 1, 2007; 90(2): 840 - 855. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. J. Bradford and M. S. Allen Milk Fat Responses to a Change in Diet Fermentability Vary by Production Level in Dairy Cattle J Dairy Sci, November 1, 2004; 87(11): 3800 - 3807. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. A. Voelker and M. S. Allen Pelleted Beet Pulp Substituted for High-Moisture Corn: 2. Effects on Digestion and Ruminal Digestion Kinetics in Lactating Dairy Cows J Dairy Sci, November 1, 2003; 86(11): 3553 - 3561. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. A. Voelker and M. S. Allen Pelleted Beet Pulp Substituted for High-Moisture Corn: 3. Effects on Ruminal Fermentation, pH, and Microbial Protein Efficiency in Lactating Dairy Cows J Dairy Sci, November 1, 2003; 86(11): 3562 - 3570. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
