Eighteen Holstein cows were used in six
simultaneous 3×3 Latin squares to determine
the value of extruded-expelled cottonseed
meal with lint as a replacement for whole
cottonseed in diets for lactating dairy cows.
Diets were: 1) WCS=whole cottonseed; 2)
EC+T=extruded-expelled cottonseed meal
with tallow; and 3) EC=extruded-expelled
cottonseed meal. Diets were formulated to
contain 17.5% CP and 40% RUP. Tallow or
shelled corn was used to balance energy
across diets. No differences were observed in
dry matter intake, milk production, or feed
efficiency among diets. Cows fed EC produced
milk with a slightly higher protein
percentage. Feed costs per cwt of milk were
$4.17, $4.19, and $4.11 for WCS, EC+T,
and EC, respectively. Extruded-expelled
cottonseed meal with lint can replace whole
cottonseed in diets for lactating dairy cows,
if the diet is balanced for energy with either corn grain or tallow.
