J. Anim Sci.
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J. Anim Sci. 1988. 66:1877-1884.
© 1988 American Society of Animal Science
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Effect of Lasalocid on Reproductive Performance and Subsequent Lactation in the Sow1,2,

K. D. Haydon3 and O. M. Hale3

University of Georgia Coastal Plain Experiment Station Tifton 31793-0748

Abstract

The effect of lasalocid (140 mg · head–1 · d–1) on sow reproductive performance and subsequent piglet performance during lactation were examined in a trial that involved 114 sows. Treatments consisted of 1) control diet with no lasalocid during gestation and lactation; 2) lasalocid diet during gestation, control diet during lactation; 3) control diet during gestation and lasalocid diet during lactation; and 4) lasalocid diet during gestation and lactation. The addition of lasalocid either to gestation or lactation diets had no effect (P > .10) on sow weight gains or days to return to estrus postweaning. Milk protein percentages were similar (P > .10) for sows in all treatment groups for samples taken at 3, 7 and 14 d postfarrowing. Milk fat percentages were higher (P < .05) in fall-bred sows at d 3 for Treatments 1, 3 and 4 than for Treatment 2 No significant differences (P > .10) were observed for litter size at birth, 21 d postfarrowing or at weaning. Piglet weights at birth, 21 d and weaning were similar (P > .10) among treatment groups. However, litter size and litter weight gains tended to be heavier at 21 d postfarrowing and at weaning for fall-bred sows fed lasalocid in either gestation and (or) lactation compared with those fed the control diet.

Footnotes

1 Supported by State and Hatch funds allocated to the Georgia Agric. Exp. Sta.

2 The authors gratefully acknowledge partial financial support of this work by Hoffman-LaRoche Inc., Nutley, NJ.

3 Dept. of Anim. Sci.






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Copyright © 1988 by the American Society of Animal Science.