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Journal of Animal Science, Vol 72, Issue 10 2690-2695, Copyright © 1994 by American Society of Animal Science

JOURNAL ARTICLE

Effect of spray-dried porcine plasma protein on feed intake, growth rate, and efficiency of gain in mice

J. E. Thomson, E. E. Jones and E. J. Eisen
Department of Animal Science, North Carolina State University, Raleigh 27695-7621.

One hundred eight mice were weaned at 21 +/- 1 d and allotted to four dietary treatments: 1) control, 2) control + 4% spray-dried porcine plasma protein (SDPP), 3) control + 8% SDPP, and 4) control + 12% SDPP. Daily gain for males increased with increasing SDPP during wk 1 (P < .01), wk 2 (P < .01), and for the entire 3 wk (P < .01). Daily gain increased quadratically with increasing SDPP for females during wk 1 (P < .05). During the 3rd wk, ADG decreased for females with increasing SDPP (P < .05). Daily feed intake increased linearly (P < .01) with increasing SDPP in all periods. Gain-to-feed ratio (G/F) increased with increasing SDPP during wk 1 (P < .01) and for the first 2 wk (P < .05). During wk 3, G/F decreased with increasing SDPP level (P < .01). Gain-to-feed ratio of females responded quadratically to increasing SDPP during wk 1 (P < .05), whereas G/F of males increased linearly with increasing SDPP level. Gain-to-feed ratio for the entire trial was unaffected by treatment among females (P = .82) but increased linearly with increasing SDPP levels among males (P < .01). Liver weight increased quadratically with increasing SDPP levels for males (P < .05) and females (P < .05). Treatment effect on liver weight per kilogram BW.75 approached significance (P < .10) in females. Male liver weight/100 g BW and liver weight per kilogram BW.75 responded quadratically to increasing SDPP levels (P < .05).(ABSTRACT TRUNCATED AT 250 WORDS)




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Copyright © 1994 by the American Society of Animal Science.