Cows that have just weaned calves and are in mid-pregnancy have the lowest nutrient requirements and can be fed the lower-quality first-cutting forages.
It all comes down to having the right feeding strategy, Lemenager said.
"It may not be that every animal gets the high-quality forage every day, but the data suggests that if I meet protein requirements by feeding high protein one day, I might be able to skip a day or two and incorporate more lower quality forages, and then come back with a higher quality on about the third day again," he said. "We can probably still maintain good microbial fermentation in the rumen by providing enough energy and protein to make the rumen efficient."
In many cases, forages alone won't be able to provide sufficient nutrition for cattle, and producers will have to add supplemental feedstuffs to animal diets. These supplements can include soybean hulls for energy or corn gluten or distillers grains for energy and protein.
One way to determine the types and amounts of supplements that best fit into a feeding strategy is to analyze forage quality. Lemenager suggested that producers sample 10 percent of the hay bales from the same harvest in the same field to determine nutritional value of each lot of hay.
"If it looks like you're going to have to buy supplements, my recommendation would be to consider watching the market on these supplements and locking in the price earlier than normal instead of waiting until winter or fall," he said.
Source: Purdue University