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

  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},
  volume={88 3},
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… 

Dietary energy density in the dry period on the metabolic status of lactating cows.

The aim of the study was to investigate the effect of different energy concentrations in the isonitrogenous diet fed during the dry period on postpartum health, fertility and blood variables. Forty

The impact of cow nutrition in the dry period on colostrum quality and immune status of calves.

Treatments had no significant effect on composition of colostrum and serum immunoglobulins and IGF-1 concentration and the weight of calves at birth was similar, still daily body weight gain during 21 day of rearing period in HE group was higher than in the LE group (P=0.05).

Effect of restricted feeding in the far-off period on performance and metabolic status of dairy cows

It is concluded that restricted feeding in the far-off period positively affected blood indicators of lipomobilization during the transition period, but had little effect on performance of lactating cows.

Effect of Dry-Period Diet on the Performance and Metabolism of Dairy Cows in Early Lactation

It was shown that different dry-period diets can be used without impact on milk production and composition when these diets cover the needs of dairy cows, but blood metabolites were more sensitive to changes in the dry diet than the production and FA profile of milk.

Management of dry and transition cows to improve energy balance and reproduction.

The research group has concluded that modification of diets fed during the dry or transition period are unlikely to have significant effects on postpartum EB and fertility, and more radical alterations in dairy management are needed if energy status of post partum cows is to be improved.

Prepartum and postpartum nutritional management to optimize fertility in high-yielding dairy cows in confined TMR systems.

A pooled statistical analysis of previous studies showed that days to pregnancy are decreased by controlling energy intake to near requirements of cows before calving compared with allowing cows to over-consume energy.

Effects of an immunomodulatory feed additive on body weight, production parameters, blood metabolites, and health in multiparous transition Holstein cows.

The study investigated the impact of feeding OmniGen-AF® (OG; Phibro Animal Health, Quincy, IL) from dry-off to week 4 of lactation at two doses on production performance and metabolic adaptation of

Physiological, health, lactation and reproductive traits of cooled dairy cows classified as having high or low core body temperature during the dry period.

Primary objectives of this study were to compare concentrations of pregnancy-associated glycoprotein (PAG) before calving, prolactin (PRL) after calving, and energy balance indicators before and

Metabolic and productive characterisation of multiparous cows grouped for fat-corrected milk yield and milk protein concentration

Milk, blood serum and body condition parameters revealed highest risk for metabolic imbalances of high yielding dairy cows during early lactation, andGene expression profiles indicated that high yielding and especially cows with high FCM and low protein concentration had higher risk for fatty liver development and diminished gluconeogenesis potential.



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

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.

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.

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.

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.

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.

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.

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.

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.