The effect of starter feeding regimen on variability in bodyweight and performance in the nursery
Variability in growth and performance is a concern to pork producers due to the associated negative impact on revenues and expenditures. This experiment was designed to determine the effect of starter program on the variability in animal weights at nursery exit. Treatments consisted of 4 starter programs, formulated and fed according to manufacturers’ specifications from weaning (d 0) to nursery exit (d 50). Overall ADG was similar between programs, however, the ADFI differed thus, feed efficiency was affected by the program used. Variability in pig growth, determined as the coefficient of variation, was not affected by starter program. This was true regardless of the starting weight of the group of pigs. Therefore, although performance may be affected slightly by the use of a specific starter program, the change in performance is uniform across a group; and the variability in body weight at nursery exit will not be affected.
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