PMID- 15591388
OWN - NLM
STAT- MEDLINE
DCOM- 20050318
LR  - 20171116
IS  - 0022-0302 (Print)
IS  - 0022-0302 (Linking)
VI  - 88
IP  - 1
DP  - 2005 Jan
TI  - Performance of dairy cows as affected by prepartum dietary carbohydrate source 
      and supplementation with chromium throughout the transition period.
PG  - 255-63
AB  - Holstein cows (n = 72) entering second or later lactation were used to determine 
      whether productive performance and dry matter intake (DMI) are affected by 
      carbohydrate source in the prepartum diet and chromium-L-methionine (Cr-Met) 
      supplementation throughout the periparturient period. Cows were fed either a TMR 
      with the concentrate portion based on starch-based cereals [high nonfiber 
      carbohydrate (NFC); 1.59 Mcal/kg of net energy for lactation (NEL), 14.4% crude 
      protein (CP), 40.3% NFC] or a TMR with the concentrate portion based on nonforage 
      fiber sources (low NFC; 1.54 Mcal/kg NEL, 14.5% CP, 33.6% NFC) from 21 d before 
      expected parturition until parturition. After parturition all cows were fed a 
      lactation TMR (1.74 Mcal/kg NEL, 16.5% CP, 40.0% NFC). The Cr-Met was 
      supplemented once daily via gelatin capsule at dosages of 0, 0.03, or 0.06 mg of 
      Cr/kg of metabolic body weight. Thus, treatments were in a 2 (carbohydrate 
      source) x 3 (Cr-Met) factorial arrangement. Neither prepartum nor postpartum DMI 
      was affected by prepartum dietary carbohydrate source. Administering increasing 
      amounts of Cr-Met linearly increased milk yield and, subsequently, postpartum 
      DMI. Prepartum carbohydrate source did not affect postpartum milk yield; however, 
      cows fed the low NFC diet tended to yield milk with a lower content of total 
      solids. These data indicate that prepartum carbohydrate source has little 
      influence on performance during the immediate peripartal period, and that 
      increases in milk yield for cows supplemented with Cr-Met are independent of 
      prepartum dietary carbohydrate source.
FAU - Smith, K L
AU  - Smith KL
AD  - Department of Animal Science, Cornell University, Ithaca, NY 14853, USA.
FAU - Waldron, M R
AU  - Waldron MR
FAU - Drackley, J K
AU  - Drackley JK
FAU - Socha, M T
AU  - Socha MT
FAU - Overton, T R
AU  - Overton TR
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - J Dairy Sci
JT  - Journal of dairy science
JID - 2985126R
RN  - 0 (Dietary Carbohydrates)
RN  - 0 (Dietary Fiber)
RN  - 0 (Dietary Proteins)
RN  - 0R0008Q3JB (Chromium)
RN  - AE28F7PNPL (Methionine)
SB  - IM
MH  - Animals
MH  - Cattle/*physiology
MH  - Chromium/*administration & dosage
MH  - Dietary Carbohydrates/*administration & dosage
MH  - Dietary Fiber/administration & dosage
MH  - Dietary Proteins/administration & dosage
MH  - Dietary Supplements
MH  - Eating
MH  - Edible Grain
MH  - Female
MH  - Lactation
MH  - Methionine/administration & dosage
MH  - Pregnancy
MH  - Prenatal Care
MH  - Time Factors
EDAT- 2004/12/14 09:00
MHDA- 2005/03/19 09:00
CRDT- 2004/12/14 09:00
PHST- 2004/12/14 09:00 [pubmed]
PHST- 2005/03/19 09:00 [medline]
PHST- 2004/12/14 09:00 [entrez]
AID - S0022-0302(05)72683-7 [pii]
AID - 10.3168/jds.S0022-0302(05)72683-7 [doi]
PST - ppublish
SO  - J Dairy Sci. 2005 Jan;88(1):255-63. doi: 10.3168/jds.S0022-0302(05)72683-7.