Results
During the initial 0 to 10 day postweaning period average daily gains decreased linearly (P < 0.01) as the level of the UP 1672 product increased (Table 2). For the 10 to 24-day period daily gains were similar for all treatment groups. During the 24 to 38-day period when all pigs were fed a common diet, daily gains were similar for all treatments. Daily gains for the entire 38-day trial period were not affected by the level or source of dietary protein evaluated in phase 1 and 2.
Daily feed intake also decreased linearly (P < 0.01) during the initial 10-day period when the UP 1672 protein source was added to the diets (Table 2). For the 10 to 24-day period feed intake was not affected by inclusion of the UP 1672 protein source. Feed intake for the 24 to 38 or 0 to 38-day periods was similar for the period and was therefore not influenced by the previous dietary treatments.
Feed efficiency was similar for all treatment groups during the 38-day study. Although both the Biopeptide UP 1672 and plasma protein was only included in the diets for the initial 24 days postweaning, feed efficiency was comparable for all treatment groups over the entire study.