PMID- 19841203
OWN - NLM
STAT- MEDLINE
DCOM- 20100226
LR  - 20131121
IS  - 1525-3198 (Electronic)
IS  - 0022-0302 (Linking)
VI  - 92
IP  - 11
DP  - 2009 Nov
TI  - Chromium supplementation and substitution of barley grain with corn: Effects on 
      performance and lactation in periparturient dairy cows.
PG  - 5411-8
LID - 10.3168/jds.2008-1877 [doi]
AB  - Thirty-two multiparous Holstein cows were used to investigate the effects of 
      chromium-l-methionine (Cr-Met) supplementation and dietary grain source on 
      performance and lactation during the periparturient period. Cows were fed a total 
      mixed ration consisting of either a barley-based diet (BBD) or a corn-based diet 
      (CBD) from 21 d before anticipated calving through 28 d after calving. The Cr-Met 
      was supplemented at dosages of 0 or 0.08 mg of Cr/kg of metabolic body weight. 
      The study was designed as a randomized complete block design with 2 (Cr-Met 
      levels) x 2 (grain sources) factorial arrangement. There was no Cr effect on 
      prepartum dry matter intake (DMI) or postpartum DMI, body weight (BW), net energy 
      balance, and whole tract apparent digestibility of nutrients. Prepartum DMI as a 
      percentage of BW tended to increase with Cr-Met. Supplemental Cr-Met tended to 
      increase milk yield whereas milk protein percentage decreased. Pre- and 
      postpartum DMI, BW, net energy balance, milk yield, and milk composition were not 
      affected by substituting ground barley with ground corn. The addition of Cr-Met 
      increased prepartum DMI and tended to increase postpartum DMI of the BBD but not 
      the CBD. The change in prepartum DMI was smaller when the BBD was supplemented 
      with Cr-Met but remained unchanged when the CBD was supplemented with Cr-Met. 
      Yields of crude protein and total solids in milk and prepartum digestibility of 
      DM and organic matter tended to increase when Cr-Met was added to the BBD but 
      remained unchanged when added to the CBD. Periparturient cows failed to respond 
      to the grain source of the diet, whereas they showed greater response in milk 
      yield to diets supplemented with Cr-Met. In conclusion, the present results 
      demonstrate that the beneficial effect of Cr-Met supplementation during the 
      periparturient period to improve feed intake may depend on the grain source of 
      the diet.
FAU - Sadri, H
AU  - Sadri H
AD  - Department of Animal Science, Isfahan University of Technology, Isfahan 84156, 
      Iran. sadrih@ag.iut.ac.ir
FAU - Ghorbani, G R
AU  - Ghorbani GR
FAU - Rahmani, H R
AU  - Rahmani HR
FAU - Samie, A H
AU  - Samie AH
FAU - Khorvash, M
AU  - Khorvash M
FAU - Bruckmaier, R M
AU  - Bruckmaier RM
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Dairy Sci
JT  - Journal of dairy science
JID - 2985126R
RN  - 0R0008Q3JB (Chromium)
SB  - IM
MH  - Animals
MH  - Body Weight/physiology
MH  - Cattle
MH  - Chromium/*administration & dosage
MH  - *Dairying
MH  - Diet/*veterinary
MH  - *Dietary Supplements
MH  - Eating/physiology
MH  - Female
MH  - *Hordeum
MH  - Lactation/*physiology
MH  - Pregnancy
MH  - *Zea mays
EDAT- 2009/10/21 06:00
MHDA- 2010/02/27 06:00
CRDT- 2009/10/21 06:00
PHST- 2009/10/21 06:00 [entrez]
PHST- 2009/10/21 06:00 [pubmed]
PHST- 2010/02/27 06:00 [medline]
AID - S0022-0302(09)70875-6 [pii]
AID - 10.3168/jds.2008-1877 [doi]
PST - ppublish
SO  - J Dairy Sci. 2009 Nov;92(11):5411-8. doi: 10.3168/jds.2008-1877.