FEED & NUTRITION

Over the years, I’ve had the opportunity to work with and provide technical support to numerous dairies in the U.S. and internationally. One of the most common questions asked pertains to feeding fats, fat sources and the hoped-for effects on milk volume, components and reproduction.

Mycotoxins are a regular concern for producers, as they influence feed quality and animal safety. They are produced by certain species of moulds and can have toxic properties that impact ruminant health and performance.

How we observe cow behaviour at the feedbunk can also really make a difference in what we see. We can walk the feed alleys and look at the many reports generated by advancing technology, such as activity, rumination and feed tracking systems.

Trace minerals continue to be studied and explored in dairy cattle nutrition. Trace minerals do not immediately impact milk yield such as increasing amino acids, added fats and oils, or improved fibre digestibility.

2017 will go down in the books for its unique rainfall pattern. As a whole, most farmers in Ontario experienced a wet spring. Come summer, the tap turned off in some areas, and the sink overflowed in others.

Milk fat represents a large part of the economic and nutritional value of milk; therefore, decreases in milk fat concentration have serious consequences for a dairy’s bottom line. With that said, researchers have done a good job outlining the factors that cause low milk fat.