The data of this experiment indicated that rumen protected folic acid or betaine improved lactation performance, nutrient digestion and rumen fermentation, and that betaine might increase folic acid utilization efficiency in dairy cows.
A recent experiment compared diets based on corn silage and either BMR pearl millet silage or BMR forage sorghum silage to determine dry matter intake and production performance of mid-lactation Holstein cows.
In young calves however the optimum THI has not been determined, it is suspected however it should differ from a mature lactating cow since the heat increment resulting from forage fermentation in the rumen is very low, and the metabolic heat associated with milk production is non-existent.
Diets with steam-flaked corn improve weight gains in feedlot cattle, and milk yield, milk protein yield, fat-corrected-milk (FCM) and solid-non-fat (SNF) in dairy cattle.
Traditionally, propylene glycol and glycerol have been used as gluconeogenic precursors. While glycerol increases plasma glucose concentration faster than propylene glycol, the latter maintains a higher glucose concentration longer.
A recent experiment evaluated the effects of butyrate supplementation on dry matter intake, milk production, and blood metabolites of lactating dairy cows fed diets containing different starch concentration.
Adding fiber-degrading enzymes to the diet of dairy cows has been explored for quite some time. These exogenous enzymes allow for a greater digestibility of the roughage which results in more nutrients available for production.
Could we predict the risk of hypocalcemia in cows by monitoring its osteoclasts? Maintaining an adequate concentration of calcium in blood during the transition period is very important.
More recently, canola meal has been used as a viable alternative replacement because of its availability and the quality of its protein.