1244 Relationships between birth season versus early life starter intake and growth and first lactation performance of Holstein dairy cows

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 599-599
Author(s):  
B. J. Heins ◽  
D. Ziegler ◽  
D. Schimek ◽  
S. E. Schuling ◽  
B. Ziegler ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Early Life ◽  
Lactation Performance ◽  
Birth Season ◽  
Holstein Dairy Cows

scholarly journals Relationships between early-life growth, intake, and birth season with first-lactation performance of Holstein dairy cows

2017 ◽  
Vol 100 (5) ◽  
pp. 3697-3704 ◽  
Author(s):  
H. Chester-Jones ◽  
B.J. Heins ◽  
D. Ziegler ◽  
D. Schimek ◽  
S. Schuling ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Early Life ◽  
Lactation Performance ◽  
Birth Season ◽  
Holstein Dairy Cows

1243 Relationships between early life growth and first lactation performance of Holstein dairy cows

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 598-599
Author(s):  
B. J. Heins ◽  
H. Chester-Jones ◽  
D. Ziegler ◽  
M. B. De Ondarza ◽  
S. E. Schuling ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Early Life ◽  
Lactation Performance ◽  
Holstein Dairy Cows

1235 Relationships between early life milk replacer and starter intake and first lactation performance of Holstein dairy cows

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 594-595
Author(s):  
H. Chester-Jones ◽  
B. J. Heins ◽  
D. Ziegler ◽  
D. Schimek ◽  
S. E. Schuling ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Early Life ◽  
Milk Replacer ◽  
Lactation Performance ◽  
Holstein Dairy Cows

The effect of rumen-protected methionine and choline on plasma metabolites of Holstein dairy cows

2011 ◽  
Vol 149 (5) ◽  
pp. 639-646 ◽  
Author(s):  
M. ARDALAN ◽  
M. DEHGHAN-BANADAKY ◽  
K. REZAYAZDI ◽  
N. GHAVI HOSSEIN-ZADEH
Keyword(s):  
Dairy Cows ◽  
Dry Matter ◽  
Dry Matter Intake ◽  
Plasma Metabolites ◽  
Lactation Performance ◽  
Plasma Nefa ◽  
Plasma Urea ◽  
Nonesterified Fatty Acids ◽  
Plasma Triglycerides ◽  
Holstein Dairy Cows

SUMMARYForty Holstein dairy cows in their first and second lactations were used from 4 weeks prepartum to 10 weeks postpartum to investigate the effects of feeding ruminally protected methionine and choline on plasma metabolites. Cows were randomly assigned to one of the following treatments in a 2×2 factorial design 4 weeks before their expected calving dates, using randomized blocks based on parity: no supplement (control), 18 g/d of rumen-protected methionine (RPM) product, 60 g/d of rumen-protected choline (RPC) product, or 18 g/d of RPM+60 g/d of RPC. Treatments did not affect plasma triglycerides, glucose, total protein, nonesterified fatty acids (NEFA), β-hydroxybutyrate (BHBA), plasma urea nitrogen (PUN) or aspartate aminotransferase (AST) during the prepartum period. For postpartum plasma NEFA concentrations, there were interactions between RPC or RPM and week postpartum. Feeding RPM increased plasma AST concentrations (P<0·05) and decreased plasma protein concentrations (P<0·05) in postpartum cows. After calving, feeding RPC increased (P<0·05) dry matter intake (DMI), milk yield, 40 g/kg fat-corrected milk (FCM) yield and energy-corrected milk (ECM) yield. This suggests that supplemental RPC can improve lactation performance of dairy cows.

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