At an early age, chick performance was depressed when
the diet contained 18%DDGS. It appeared that the younger
birds (up to 18 d) were less able to tolerate high levels of
DDGS, but this was not of consequence during the grower
and finisher stages. It appears that increased inclusion levels
of DDGS resulted in a marginal lysine deficiency, which
was most limiting when the birds were young and had
the highest amino acid requirements. During the grower
and finisher periods, no significant differences were observed
at any level of inclusion, which suggested that once
beyond the starter period chicks could efficiently use higher
levels of DDGS. Distillers dried grains with solubles from
modern ethanol plants have proven to be a highly acceptable
feed ingredient in commercial broiler diets. A conservative
maximum level of DDGS to use in the starter diets
is 6% and it could be speculated based on previous research
that levels of 9% and above could be used as long as the
level does not exceed 12%. However, in the grower and
finisher period it appears feasible to increase DDGS in the
diet to 12 to 15%.
At an early age, chick performance was depressed whenthe diet contained 18%DDGS. It appeared that the youngerbirds (up to 18 d) were less able to tolerate high levels ofDDGS, but this was not of consequence during the growerand finisher stages. It appears that increased inclusion levelsof DDGS resulted in a marginal lysine deficiency, whichwas most limiting when the birds were young and hadthe highest amino acid requirements. During the growerand finisher periods, no significant differences were observedat any level of inclusion, which suggested that oncebeyond the starter period chicks could efficiently use higherlevels of DDGS. Distillers dried grains with solubles frommodern ethanol plants have proven to be a highly acceptablefeed ingredient in commercial broiler diets. A conservativemaximum level of DDGS to use in the starter dietsis 6% and it could be speculated based on previous researchthat levels of 9% and above could be used as long as thelevel does not exceed 12%. However, in the grower andfinisher period it appears feasible to increase DDGS in thediet to 12 to 15%.
การแปล กรุณารอสักครู่..
