scholarly journals Genetics of Grass Dry Matter Intake, Energy Balance, and Digestibility in Grazing Irish Dairy Cows

2007 ◽  
Vol 90 (10) ◽  
pp. 4835-4845 ◽  
Author(s):  
D.P. Berry ◽  
B. Horan ◽  
M. O’Donovan ◽  
F. Buckley ◽  
E. Kennedy ◽  
...  
Keyword(s):  
Energy Balance ◽  
Dairy Cows ◽  
Dry Matter ◽  
Dry Matter Intake

scholarly journals Hipocalcemia e cetose - principais doenças metabólicas da vaca leiteira durante o período de transição - uma revisão de literatura

2021 ◽  
Vol 4 (5) ◽  
pp. 130-141
Author(s):  
Mylena Garcia Proto ◽  
◽  
Milena Cristina Bernardo de Barros ◽  
Bruna Stanigher Barbosa ◽  
◽  
...  
Keyword(s):  
Energy Balance ◽  
Energy Expenditure ◽  
Dairy Cows ◽  
Dry Matter ◽  
Transition Period ◽  
Negative Energy ◽  
Dry Matter Intake ◽  
Economic Losses ◽  
Balance State ◽  
Production Demand

With the increased production demand in the dairy industry comes the need to keep animals healthier, thus avoiding large economic losses due to low productivity. During the transition period, dairy cows are susceptible to the onset of infectious diseases and metabolic imbalances due to the big change in their diet, it could be poor in needed nutrients to maintain the animal's body score, with this, the dry matter intake decreases up to 40% while energy expenditure increases due to milk and colostrum production, getting into a negative energy balance state.

scholarly journals Effects of dry period management on milk production, dry matter intake, and energy balance of dairy cows

2015 ◽  
Vol 95 (3) ◽  
pp. 433-444 ◽  
Author(s):  
H. Khazanehei ◽  
S. Li ◽  
E. Khafipour ◽  
J. C. Plaizier
Keyword(s):  
Energy Balance ◽  
Dairy Cows ◽  
Milk Production ◽  
Dry Matter ◽  
Milk Protein ◽  
Dry Matter Intake ◽  
Dry Period ◽  
Short Treatment ◽  
Cell Counts ◽  
Lower Production

Khazanehei, H., Li, S., Khafipour, E. and Plaizier, J. C. 2015. Effects of dry period management on milk production, dry matter intake, and energy balance of dairy cows. Can. J. Anim. Sci. 95: 433–444. Effects of dry-period management on milk production, feed intake, and energy balance were determined in 11 second-parity (PAR 2) and 15 third or later parity (PAR 3+) cows. Cows were paired based on expected calving date, and randomly assigned to treatments including a conventional 60-d dry period with a 39-d far-off and a 21-d close-up diet (CONV), and a short 40-d dry period with only a close-up diet (SHORT). Treatment did not affect dry matter intake (DMI) and energy balance across the 6 wk before calving and the 4 wk after calving. Across the first 16 wk of lactation, cows on the short treatment had lower milk yield compared to cows on the CONU treatment that was mostly due to the lower production in PAR 3+ cows. Also, PAR 3+ cows on the SHORT treatment had lower milk protein yields and higher somatic cell counts than the other cows. In general, PAR 2 cows on the SHORT treatment had similar DMI, fat corrected milk yields, and protein and fat yields and percentages compared to cows in both parity groups on the CONV treatment. This suggests that the SHORT treatment may be suitable for PAR 2 cows, but not for older cows.

scholarly journals Correlation between Blood Biochemical Metabolites Milk Yield, Dry Matter Intake and Energy Balance in Dairy Cows during Early and Mid Lactation

2017 ◽  
Vol 5 (2) ◽  
pp. 26-30 ◽  
Author(s):  
Radojica Djoković ◽  
Vladimir Kurćubić ◽  
Zoran Ilić ◽  
Marko Cincović ◽  
Miroslav Lalović ◽  
...  
Keyword(s):  
Energy Balance ◽  
Dairy Cows ◽  
Milk Yield ◽  
Dry Matter ◽  
Dry Matter Intake ◽  
Blood Biochemical

scholarly journals Effects of Increasing Milking Frequency During the Last 28 Days of Gestation on Milk Production, Dry Matter Intake, and Energy Balance in Dairy Cows

2007 ◽  
Vol 90 (4) ◽  
pp. 1729-1739 ◽  
Author(s):  
R.R. Rastani ◽  
N. Silva del Rio ◽  
T.F. Gressley ◽  
G.E. Dahl ◽  
R.R. Grummer
Keyword(s):  
Energy Balance ◽  
Dairy Cows ◽  
Milk Production ◽  
Dry Matter ◽  
Dry Matter Intake ◽  
Milking Frequency

Association of leptin polymorphisms with milk yield, dry matter intake, energy balance, luteal activity and serum leptin levels during lactation in HF dairy cows

2002 ◽  
Vol 2002 ◽  
pp. 45-45
Author(s):  
S.C. Liefers ◽  
R.F. Veerkamp ◽  
M.F.W. te Pas ◽  
C. Delavaud ◽  
Y. Chilliard ◽  
...  
Keyword(s):  
Energy Balance ◽  
Dairy Cows ◽  
Milk Yield ◽  
Dry Matter ◽  
Gene Locus ◽  
Genetic Correlations ◽  
Live Weight ◽  
Late Pregnancy ◽  
Dry Matter Intake ◽  
Plasma Leptin

Since evidence is present that genetic correlations between start of luteal activity and energy balance, milk yield and live weight exist (Veerkamp et al., 2000), it could be hypothesised that polymorphisms at the leptin gene locus might play a role. The first objective of this study was to associate plasma leptin levels during late pregnancy with genetic differences in the leptin gene. The second objective was to relate these polymorphisms with variations in energy balance, milk production, dry matter intake and fertility.

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