Methionine is an essential amino acid for dairy cows, but it is often undersupplied in typical rations. It is considered essential because cows cannot synthesize enough methionine to meet their needs, so it must be supplied by what they digest. 

Vegetable oils, particularly oils that are high in monounsaturated fatty acids such as canola oil, have been shown to reduce methane output and improve energy efficiency. In addition, some secondary plant compounds can likewise modify fermentation to reduce methane production.

While IOFC seems like a very simple calculation, it may not be an accurate one. There are many moving parts on farm, and these can influence the outcome independently of the feed or management change that has been made. Some modifications may be needed to get a true picture of events.

One goal of the Dairy Forage Research Center is to reduce purchased protein and improve the conversion of feed protein to milk protein. Canola meal research continues to assess both areas.

Persistency is usually considered a genetic trait. However, a new study shows that nutrition may play a larger role than originally thought.

Protein and amino acids are important parts of the cow’s ration. Meeting the cow’s requirements without oversupplying these nutrients ensures three things: optimum productivity, best-cost rations and sustainable rations.