The transition period, from 3 wk before to 3 wk after parturition, is critically important to
health, production, and profitability of dairy cows. Most health disorders occur during this …

The ruminal epithelium has an enormous capacity for the absorption of short-chain fatty
acids (SCFAs). This not only delivers metabolic energy to the animal but is also an essential …

Tremendous metabolic and endocrine adjustments must be made as dairy cows move from
late gestation to early lactation. Requirements for glucose and metabolizable energy …

The present study gives a critique of the mechanisms involved with the formation of volatile
fatty acid (VFA) formed in the lumen of the reticulo-rumen, the absorption of VFA across the …

Effects of diet forage-to-concentrate ratio and intake on balances of energy and nitrogen and
portal-drained viscera (PDV), liver and kidney blood flow and O 2 consumption were …

The maintenance of an optimum nutrient balance in ruminant animals for growth, pregnancy
and lactation is of key economic importance, requiring a wide range of adaptive responses …

The objective of this study was to profile phosphoenolpyruvate carboxykinase (PEPCK) and
pyruvate carboxylase (PC) mRNA expression in the liver of dairy cattle during the peripartum …

To determine if increased nutrient density in prepartum diets improves nutrient balance of
peripartum cows, we blocked 40 Holstein cows and 40 heifers by expected date of …

The transition period is a severe challenge to dairy cows. Glucose supply cannot meet
demand and body fat is mobilized, potentially leading to negative energy balance (NEB) …

The predictability of diet effects on milk composition is limited by the lack of understanding of
the metabolic transformations that absorbed nutrients undergo within the portal-drained …