scholarly journals Effects of Dietary Supplements of Folic Acid and Vitamin B12 on Metabolism of Dairy Cows in Early Lactation

2007 ◽  
Vol 90 (7) ◽  
pp. 3442-3455 ◽  
Author(s):  
B. Graulet ◽  
J.J. Matte ◽  
A. Desrochers ◽  
L. Doepel ◽  
M.-F. Palin ◽  
...  
Keyword(s):  
Folic Acid ◽  
Vitamin B12 ◽  
Dairy Cows ◽  
Dietary Supplements ◽  
Early Lactation

Response of early lactation dairy cows to the inclusion of the liver technology product ABN-LiFT in the total mixed ration

2002 ◽  
Vol 2002 ◽  
pp. 197-197
Author(s):  
C A Middlemass ◽  
C M Minter ◽  
M Marsden
Keyword(s):  
Folic Acid ◽  
Vitamin B12 ◽  
Dairy Cows ◽  
Energy Requirement ◽  
High Energy ◽  
Early Lactation ◽  
Dry Period ◽  
Total Mixed Ration ◽  
Methyl Group ◽  
Technology Product

Through the dry period to early lactation the cow goes through a dramatic change in her metabolism. To supply the high energy requirement in early lactation fat supply from the diet and body mobilisation increases substantially. As a result, the liver accumulates fat, the rate of detoxification slows down, ammonia accumulates and there’s a reduced supply of fat, glucose and protein to the udder. This trial was designed to evaluate the response of dairy cows to product called ABN-LiFT a proprietary mixture of B-group vitamins and methyl group donors (rumen protected choline, niacin, vitamin B12, biotin, folic acid and thiamine) designed to reduce the accumulation of triglycerides in the liver and accelerate VLDL export.

Changes in serum concentrations of folates, pyridoxal, pyridoxal-5-phosphate and vitamin B12 during lactation of dairy cows fed dietary supplements of folic acid

1999 ◽  
Vol 79 (1) ◽  
pp. 107-114 ◽  
Author(s):  
C. L. Girard ◽  
J. J. Matte
Keyword(s):  
Folic Acid ◽  
Dairy Cows ◽  
Dietary Supplements ◽  
Dairy Cow ◽  
Vitamin B ◽  
Early Lactation ◽  
Serum Concentrations ◽  
Ruminal Microorganisms ◽  
Time Parity ◽  
B Complex Vitamins

The present experiment was undertaken to determine the effects of dietary supplements of folic acid (FA) administered from 4 wk prepartum to 305 d of lactation on serum concentrations of folates, vitamin B12, pyridoxal-5-phosphate (P-5-P) and pyridoxal. In addition, concentrations of blood hemoglobin and packed cell volume (PCV) were determined. Sixty-three Holstein cows were assigned to 22 incomplete blocks according to lactation number, milk production and body weight (BW). Within each block, cows received 0, 2 and 4 mg FA d−1 kg−1 BW. Dietary supplements of FA increased serum concentrations of folates (time × FA, P = 0.0001); the highest concentrations were observed during the first two months of lactation in cows fed supplementary FA. The lowest serum concentrations of vitamin B12 were also observed during the first two months of lactation, and the concentrations were lower in primiparous than in multiparous cows (time × parity, P = 0.03). Serum concentrations of P-5-P and pyridoxal were not affected by the dietary supplements of FA (P > 0.1). In multiparous cows, dietary supplements of FA had no effect on changes of hemoglobin and PCV during the lactation (time × FA, P > 0.13). In primiparous cows, PCV and hemoglobin were lower in control cows at parturition whereas by 24 wk of lactation, they were higher in cows fed the highest amount of FA. The lowest values of hemoglobin and PCV were observed during the first two months of lactation. These results give an indication that supply of B-complex vitamins by ruminal microorganisms could be suboptimal for high-producing dairy cows, for example, in early lactation when fed a diet with a high proportion of concentrates. More research is needed to determine the metabolic consequences of these variations. Key words: Dairy cow, vitamin B6, vitamin B12, folic acid, lactation

scholarly journals Effects of supplements of folic acid, vitamin B12, and rumen-protected methionine on whole body metabolism of methionine and glucose in lactating dairy cows

2009 ◽  
Vol 92 (2) ◽  
pp. 677-689 ◽  
Author(s):  
A. Preynat ◽  
H. Lapierre ◽  
M.C. Thivierge ◽  
M.F. Palin ◽  
J.J. Matte ◽  
...  
Keyword(s):  
Folic Acid ◽  
Vitamin B12 ◽  
Dairy Cows ◽  
Whole Body ◽  
Lactating Dairy Cows ◽  
Whole Body Metabolism

Effects of Folic Acid and Vitamin B12 Supplementation on Granulosa Cells of the Dominant Follicle of Dairy Cows.

2012 ◽  
Vol 87 (Suppl_1) ◽  
pp. 504-504 ◽  
Author(s):  
Annie Gagnon ◽  
Marc-André Sirard ◽  
François Richard ◽  
Jean-Paul Laforest
Keyword(s):  
Folic Acid ◽  
Vitamin B12 ◽  
Dairy Cows ◽  
Granulosa Cells ◽  
Dominant Follicle ◽  
Vitamin B12 Supplementation

scholarly journals Whole-body propionate and glucose metabolism of multiparous dairy cows receiving folic acid and vitamin B12 supplements

2017 ◽  
Vol 100 (10) ◽  
pp. 8578-8589 ◽  
Author(s):  
M. Duplessis ◽  
H. Lapierre ◽  
B. Ouattara ◽  
N. Bissonnette ◽  
D. Pellerin ◽  
...  
Keyword(s):  
Folic Acid ◽  
Glucose Metabolism ◽  
Vitamin B12 ◽  
Dairy Cows ◽  
Whole Body
Sign in / Sign up

Export Citation Format

Share Document