scholarly journals Effects of a novel heat-treated protein and carbohydrate supplement on feed consumption, milk production, and cheese yield in early-lactation dairy cows

2020 ◽  
Vol 103 (5) ◽  
pp. 4315-4326
Author(s):  
M.R. Sheehy ◽  
F.J. Mulligan ◽  
S.T. Taylor ◽  
A.G. Fahey
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Feed Consumption ◽  
Early Lactation ◽  
Heat Treated ◽  
Carbohydrate Supplement

scholarly journals High- and low-purity glycerine supplementation to dairy cows in early lactation: effects on silage intake, milk production and metabolism

animal ◽  
2013 ◽  
Vol 7 (9) ◽  
pp. 1479-1485 ◽  
Author(s):  
A.Werner Omazic ◽  
M. Tråvén ◽  
J. Bertilsson ◽  
K. Holtenius
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Early Lactation

Prediction of body weight and composition in lactating dairy cows: Relationship between body condition score and body composition

2005 ◽  
Vol 2005 ◽  
pp. 19-19
Author(s):  
T. Yan ◽  
R. E. Agnew ◽  
C. S. Mayne
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Dairy Cows ◽  
Milk Production ◽  
Body Condition ◽  
Body Condition Score ◽  
Early Lactation ◽  
Lactating Dairy Cows ◽  
Condition Score ◽  
Body Concentration

Body condition of lactating dairy cows varies at different stages of lactation. Cows usually mobilise their body reserves to provide energy and protein for milk production in early lactation, and gain weight to deposit energy and protein for pregnancy at a later stage. The objective of the present study was to examine relationships between body condition score (CS) and body concentration of lipid, CP and energy.

scholarly journals Monitoring the nutritional and reproductive state of dairy cows through the presence of urea in milk

2009 ◽  
Vol 52 (spe) ◽  
pp. 249-258 ◽  
Author(s):  
Paula Adriana Grande ◽  
Geraldo Tadeu dos Santos ◽  
Hilton Ribeiro ◽  
Júlio César Damasceno ◽  
Claudete Regina Alcalde ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Cell Count ◽  
Milk Production ◽  
Artificial Insemination ◽  
Somatic Cell Count ◽  
Dairy Farms ◽  
Early Lactation ◽  
Reproductive State ◽  
A Value ◽  
Milk Urea

The effects of farm, parity (PO) and month of parturition on milk production, percentage of fat and protein, somatic cell count (SCC), and milk urea nitrogen (MUN) concentration were assessed on four specialized dairy farms using 120 cows. Also, the effects of MUN on gestation rate (GR) and artificial insemination rate (AIR) in early lactation were studied. The parameters of production and milk quality were similar among farms and were not influenced by the month of parturition. Farm D presented the highest MUN concentration. Concentration of MUN, percentages of fat and protein and SCC were not influenced by PO. Cows with a value of MUN between 10.1 and 13.0 mg/dL had the highest AIR and GR between days 55 and 70 postpartum and after 70 days in milk. These data suggested that MUN concentration was a useful parameter to predict the nutritional and reproductive stages of dairy cows.

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