Abstract:A total of 720 barrows (initially 5.9 kg; Line 200 × 400; DNA, Columbus, NE) were used in a 42-d growth trial to test the effects of spray-dried Lactococcus-based fermentation products on nursery pig performance. There were 24 replications per treatment with pen randomly allotted to 1 of 6 dietary treatments. The positive control (PC) diet included zinc oxide (ZnO; phase 1), ZnO + chlortetracycline (CTC; phase 2) while the negative control (NC) diet did not include ZnO or CTC. Treatment diets included the nega… Show more
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