Lactation Trial From Mississippi State University
Compliments of Nutrition Research
Comparison of TMF113 to a "Dual-Purpose" Pioneer Hybrid
as Silage for Lactating Dairy Cows
This yield and lactation trial was conducted by Mississippi
State University. Mid-lactation dairy cows were assigned to two ration treatments for a
period of 90 days. Rations consisted of 33% corn silage, 6.6% ryegrass silage, 27.4%
ground corn, 15.9% soybean meal, 11.6% whole cottonseed, 3.5% mineral-vitamin-bicarbonate
mix, and 0.8% Megalac. The only difference between the two rations was the silage used:
TMF or "dual-purpose" hybrid.
In this trial, silage yield per acre was 5% greater
for TMF and grain yield was 6% greater for TMF than the
"dual-purpose" hybrid.
The lactation trial showed similar dry matter intake
for cows fed TMF or "dual-purpose" silage rations. No differences in body weight
gain were observed between treatments. Milk yield, milk fat %, and milk protein % were not
different for cows fed TMF or "dual-purpose" silage rations even though TMF
silage had higher NDF and ADF levels than the "dual-purpose" silage.
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