In my April column, I covered the basic concepts of ruminant protein nutrition and introduced the concept of metabolizable protein. As a quick review, metabolizable protein is the protein — or more specifically the amino acids — available for absorption in the small intestine of the animal. Metabolizable protein is used to meet the animal’s […] Read more

Meeting metabolizable protein requirements of your cattle
Nutrition with John McKinnon

The basics of protein nutrition for improved cattle performance
Nutrition with John McKinnon
Meeting the protein requirements of your cattle is a cornerstone of a well-balanced nutrition program. Not only is protein one of the most expensive nutrients to supplement, but it is also one of the most important from a performance perspective. Consider, for example, that protein requirements increase during the latter stages of pregnancy and with […] Read more

Math 101 for beef producers
Nutrition with John McKinnon
When I discuss various aspects of nutrition with producers, I often sense confusion when it comes to “as fed” versus “dry matter” (DM) conversions. Such conversions have a profound effect on our ability to predict feed intake and on our understanding of ration nutrient concentration, feed costs and on cost of gain calculations. If one […] Read more

A new decade – same production issues
Nutrition with John McKinnon
As I write this article, we have just entered a new year and indeed a new decade. While we do not know what the next 10 years will hold for us, we do know that many of the production issues we faced in the last decade will still be with us as we move into […] Read more

How well do you mix your cattle feed?
Nutrition with John McKinnon
When it comes to putting quality feed in front of cattle, there are about as many ways to accomplish this task as there are cattle operations. In most finishing operations, we see total mixed rations (TMR) delivered via mixer wagons, while in cow-calf operations we see everything from pail-feeding grain and ad libitum bale feeding […] Read more

Vitamins to consider when cattle feeding
Nutrition with John McKinnon
Over the years, I have had the opportunity to discuss winter feeding programs with numerous cow-calf producers across the country. One positive trend that I have noticed from these discussions is the widespread acceptance of mineral feeding. However, when it comes to vitamins, there seems to be confusion or in some cases skepticism about the […] Read more

Feed bunk management key to a sound feeding program
Nutrition with John McKinnon
In my last two columns, we have looked at issues with starting cattle on feed, as well as providing insight into the design of backgrounding and finishing programs. In this column, the focus will be on management of the feeding program, particularly feed bunk management. At its most basic level, feed bunk management is the […] Read more

Some thoughts on cattle feeding program design
Nutrition with John McKinnon
In my last column, I discussed some of the issues cattle feeders — particularly those new to feeding — face when starting calves on feed. The basic message was that with feed intake, these animals need to get off to a fast start to minimize issues associated with weaning stress and the various disease challenges […] Read more

Tips for starting calves on feed
Nutrition with John McKinnon
Retained ownership is a marketing strategy that is used to manage market risk. As opposed to selling weaned calves into a potentially depressed market, retaining ownership and selling at a later stage of production (i.e. as short or long yearlings, or even finished animals) offers the possibility to sell into a more favourable market, as […] Read more

McKinnon: Interested in feeding your cattle more efficiently this winter?
Nutrition with John McKinnon
As we move into fall, one of your “to-do” tasks will be to book a herd health visit with your veterinarian. This will include administering any needed vaccinations, structural soundness evaluations as well as pregnancy checking bred cows and heifers. One management tool that may not be included is body condition scoring. If this is […] Read more