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Effect Of Hydrogen Peroxide In The Scald Tank On The Microbial Count Of Pork Skin, A. S. De Mello Jr., R. O. Roca
Effect Of Hydrogen Peroxide In The Scald Tank On The Microbial Count Of Pork Skin, A. S. De Mello Jr., R. O. Roca
Department of Animal Science: Faculty Publications
The objective of this study was to investigate the effect of hydrogen peroxide (H2O2) (50% v/v) on pork skin microbial populations. Forty-eight crossbred hogs were analyzed after dehairing and 30 during chilling. Three different concentrations of hydrogen peroxide were added to the scalding water (0.01, 0.05 and 0.1% of the total capacity of the scald tank). In treatment I no addition of H2O2 was applied while, in treatment II, H2O2 was added at 0 min and, in treatment III, it was added at 0, 30 and 60 min. Both treatments …
Effects Of Social Interactions On Empirical Responses To Selection For Average Daily Gain Of Boars, C. Y. Chen, Rodger K. Johnson, S. Newman, Stephen D. Kachman, L. Dale Van Vleck
Effects Of Social Interactions On Empirical Responses To Selection For Average Daily Gain Of Boars, C. Y. Chen, Rodger K. Johnson, S. Newman, Stephen D. Kachman, L. Dale Van Vleck
Department of Animal Science: Faculty Publications
Effects of social interactions on responses to selection for ADG were examined with records of 9,720 boars from dam lines (1 and 2) and sire lines (3 and 4) provided by Pig Improvement Company. Each line was analyzed separately. Pens contained 15 boars. Gains (ADG) were measured from about 71 to 161 d of age and weight from 31 to 120 kg. Models included fixed effects of contemporary groups and initial test age as a covariate, and random direct genetic (d), social genetic (c), social environmental (ce), and litter (lt) effects. Estimates of direct heritability with Model 1 (the full …