PMID- 10641858
OWN - NLM
STAT- MEDLINE
DCOM- 20000210
LR  - 20231213
IS  - 0021-8812 (Print)
IS  - 0021-8812 (Linking)
VI  - 77
IP  - 12
DP  - 1999 Dec
TI  - Impacts of increasing amounts of supplemental soybean meal on intake and 
      digestion by beef steers and performance by beef cows consuming low-quality 
      tallgrass-prairie forage.
PG  - 3156-62
AB  - Two experiments were conducted to evaluate the impacts of increasing levels of 
      supplemental soybean meal (SBM) on intake, digestion, and performance of beef 
      cattle consuming low-quality prairie forage. In Exp. 1, ruminally fistulated beef 
      steers (n = 20; 369 kg) were assigned to one of five treatments: control (forage 
      only) and .08, .16, .33, and .50% BW/d of supplemental SBM (DM basis). Prairie 
      hay (5.3% CP; 49% DIP) was offered for ad libitum consumption. Forage OM intake 
      (FOMI) and total OM intake (TOMI) were increased (cubic, P = .01) by level of 
      supplemental SBM, but FOMI reached a plateau when the daily level of SBM 
      supplementation reached .16% BW. The concomitant rises in TOMI and OM 
      digestibility (quadratic, P = .02) resulted in an increase (cubic, P = .03) in 
      total digestible OM intake (TDOMI). In Exp. 2, spring-calving Hereford x Angus 
      cows (n = 120; BW = 518 kg; body condition [BC] = 5.3) grazing low-quality, 
      tall-grass-prairie forage were assigned to one of three pastures and one of eight 
      treatments. The supplemental SBM (DM basis) was fed at .08, .12, .16, .20, .24, 
      .32, .40, and .48% BW/d from December 2, 1996, until February 10, 1997 (beginning 
      of the calving season). Performance seemed to reach a plateau when cows received 
      SBM at approximately .30% BW/d. Below this level, cows lost approximately .5 unit 
      of BC for every .1% BW decrease in the amount of supplemental SBM fed. Providing 
      supplemental SBM is an effective means of improving forage intake, digestion, and 
      performance of beef cattle consuming low-quality forages.
FAU - Mathis, C P
AU  - Mathis CP
AD  - Department of Animal Sciences and Industry, Kansas State University, Manhattan 
      66506, USA.
FAU - Cochran, R C
AU  - Cochran RC
FAU - Stokka, G L
AU  - Stokka GL
FAU - Heldt, J S
AU  - Heldt JS
FAU - Woods, B C
AU  - Woods BC
FAU - Olson, K C
AU  - Olson KC
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Anim Sci
JT  - Journal of animal science
JID - 8003002
SB  - IM
MH  - *Animal Feed
MH  - Animals
MH  - Body Weight
MH  - Cattle/*growth & development/metabolism
MH  - Dietary Supplements
MH  - *Digestion
MH  - Energy Intake
MH  - Female
MH  - Male
MH  - Pregnancy
MH  - *Glycine max
EDAT- 2000/01/21 00:00
MHDA- 2000/01/21 00:01
CRDT- 2000/01/21 00:00
PHST- 2000/01/21 00:00 [pubmed]
PHST- 2000/01/21 00:01 [medline]
PHST- 2000/01/21 00:00 [entrez]
AID - 10.2527/1999.77123156x [doi]
PST - ppublish
SO  - J Anim Sci. 1999 Dec;77(12):3156-62. doi: 10.2527/1999.77123156x.