Effects of twin pregnancy and dry period feeding strategy on milk production, energy balance, and metabolic profiles in dairy cows.

@article{SilvadelRo2010EffectsOT,
  title={Effects of twin pregnancy and dry period feeding strategy on milk production, energy balance, and metabolic profiles in dairy cows.},
  author={Noelia Silva-del-R{\'i}o and Paul M Fricke and Ric R. Grummer},
  journal={Journal of animal science},
  year={2010},
  volume={88 3},
  pages={
          1048-60
        }
}
The present study evaluated the interaction of pregnancy type [PT; single (S) vs. twin (T)] and dry period feeding management [D; close-up (CU) diet (NE(l) = 1.54 Mcal/kg of DM)] throughout the entire dry period (8W) vs. far-off (FO) diet (NE(l) = 1.32 Mcal/kg of DM) from 60 to 21 d before expected calving date (ECD) followed by CU diet until calving (3W). Treatments were arranged in a 2 x 2 factorial with a randomized block design with primiparous (n = 8) and multiparous (n = 39) Holstein cows… 

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References

SHOWING 1-10 OF 35 REFERENCES

Reducing dry period length to simplify feeding transition cows: milk production, energy balance, and metabolic profiles.

TLDR
T and S management schemes had similar effects on DMI, SCM, and metabolic variables in the first 70 d of the subsequent lactation, and Eliminating the DP improved energy and metabolic status.

Diets during far-off and close-up dry periods affect periparturient metabolism and lactation in multiparous cows.

TLDR
The effects of far-off and close-up treatments on postpartum variables diminished as lactation progressed, and overfeeding during the far- off period had a greater negative impact on peripartum metabolism than did differences inClose-up period nutrition.

Prepartal plane of nutrition, regardless of dietary energy source, affects periparturient metabolism and dry matter intake in Holstein cows.

TLDR
Nutrient intake during the dry period had more pronounced effects on peripartal lipid metabolism and DMI than did composition of the prepartum diet.

Effect of peripartum energy concentration on production performance of Holstein cows.

TLDR
Body measurements, calf weight, milk yield, feed efficiency, services per conception, and incidence of diseases were not influenced by the prepartum regimen, and Reproduction and health were not affected by the postpartum regimen.

Maternal energy status of beef cattle during single and twin pregnancy.

TLDR
The high ME requirement for the twin pregnancy and the weight loss experienced by dams during the last trimester may have implications for management decisions pertaining to the prevention of complications that often occur with twin pregnancy in cattle.

Strategies for increasing energy density of dry cow diets.

TLDR
Increasing diet energy density of far-off dry cows positively affected DMI, ruminal propionate, serum insulin, and plasma NEFA, and in conclusion, increasing energy density with a blend of feeds that represent extremes in rates of carbohydrate fermentation may be a strategy to provide greater amounts of glucogenic precursors.

Unrestricted feed intake during the dry period impairs the postpartum oxidation and synthesis of fatty acids in the liver of dairy cows.

TLDR
The reduction in fatty acid oxidation following parturition may contribute to postpartum accumulation of triacylglycerol in the livers of cows with unrestricted access to feed during the dry period.

Higher postpartum hepatic triacylglycerol concentrations in dairy cows with free rather than restricted access to feed during the dry period are associated with lower activities of hepatic glycerolphosphate acyltransferase.

TLDR
It is indicated that in cows given free instead of restricted access to feed during the dry period have a postpartum hepatic triacylglycerol accumulation that is mainly determined by a raised hepatic uptake of plasma NEFA.