Diets
A 60:40 corn-soybean blend was extruded to produce the extruded corn-soybean product used in the study.
Proximate and lysine analysis of the corn-soybean extruded product is shown in table 1
Composition and chemical analysis of diets are shown in Table 2
The basal diet was prepared at the SDSU Feed Mill and corn-soybean of 97.1% corn and 2.9% vitamin and ineral premix
that or exceeded NRC [10] vitamin and mineral requirements for growing pigs
The test ingredient diet ,(CSOY) was comprised of 70% basal diet with 30% of the corn soybean extruded test
product,and was prepared using Mixer (Model number 2030,Rapids Machinery Co., Marion, IA, USA).
Barrows were limit-fed to three percent of body weight and feed was provided in two equal daily allotments at 0800 h
and 1600 h
Body weight used to calculate feeding level was measured at the start of each experimental period
Orts were collected and weighed before the morning feeding of the first day of each collection period and upon the completion of the experiment.