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The
U.S. Department of Agriculture estimates total production of soybeans
in the 2005/2006 cropping season was 3.086 billion bushels. The
soybean crush is estimated at 1.720 billion bushels and soybean
exports estimated at 910 million bushels with 162 million allocated
to planting seed and residue uses and a carry-over of 256 million
bushels. The total domestic soybean meal crush, domestic feed use,
meal exports and residue amounts are estimated at 40.95, 34.10,
6.60 and 0.25 million short tons, respectively.
In the next Soybean Meal INFOsource newsletter the first production
and use estimates for the 2006 soybean crop will be featured. Soybean
growers are eagerly looking forward to the new season and the challenges
that the season will bring.
Improving Broiler Diet Formulation
Brazilian researchers evaluated the benefits of formulating broiler
diets using digestible amino acids and the performance of diets
formulated with lower protein levels and supplemented with synthetic
amino acids. Two experiments were conducted with Hubbard male broilers
from three to six weeks of age. In experiment 1, a corn-soybean
meal diet containing 20 percent protein was formulated and the second
experiment contained corn, soybean meal, wheat bran, feather meal
and meat meal. In both experiments, body weight gain and economic
evaluations were better for broilers fed the diets formulated using
digestible amino acids. Carcass yields and composition were not
significantly affected by diet formulation procedures. Birds fed
diets based on digestible amino acids had improved feed efficiency
compared to those fed diets formulated using total amino acids.
Reducing the protein content of the diets from 20 to 18.2 percent
did not affect performance, however, the lower protein-fed birds
had fatter carcasses, lower percentage of breast meat and lower
economic return. These studies support the formulation of broiler
diets using digestible amino acids and alert the nutritionist to
possible concerns when diets are formulated with low protein levels
and using synthetic amino acids to balance the broiler’s amino
acid needs.
Dari, R.L. and co-workers. 2005. Use of digestible amino acids and
the concept of idea protein in feed formulation for boilers. J.
Applied Poultry Res. 14(2): 195-203. |
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The SOYBEAN
MEAL INFORMATION CENTER is sponsored by the Soybean Checkoff: Including
the checkoff boards from, Iowa, Kansas, Michigan, Minnesota, Nebraska,
North Dakota, Kentucky and the United Soybean Board |
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