J. Anim Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J. Anim Sci. 1968. 27:1587-1590.
© 1968 American Society of Animal Science
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Holden, P. J.
Right arrow Articles by Hays, V. W.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Holden, P. J.
Right arrow Articles by Hays, V. W.

Effect of Protein Level during Pregnancy and Lactation on Reproductive Performance in Swine1

P. J. Holden, E. W. Lucas2, V. C. Speer and V. W. Hays3

Iowa Agriculture and Home Economics Experiment Station, Ames,4

Abstract

Four trials were conducted to study the effect of protein intake during gestation and lactation on reproductive performance. Of the original 64 sows, 42 completed four consecutive reproductive cycles on their respective diets. During gestation each sow was fed 1.82 kg. daily and each was fed to appetite twice daily during lactation. The diets contained 8, 12, 16 or 20% crude protein and were of similar amino acid balance.

No significant differences in number of pigs farrowed alive, birthweight or number of pigs weaned were observed among treatments. There was a significant (P≤.05) linear increase in pig gain from birth to weaning as the protein level was increased in the analysis of the data from all sows, but this trend was not significant for the data from those sows completing four reproductive cycles. Crude protein levels in sow's milk at 2-wk. postpartum increased linearly with increasing dietary protein.

The data presented indicate that the diet containing 8% crude protein fed at the level of 1.82 kg. daily during gestation and fed to appetite twice daily during lactation provided adequate protein for satisfactory reproductive performance. However, pig gain from birth to 2-wk. of age was improved by higher levels of protein in the sow's diet.

Footnotes

1 Journal Paper No. J-5891 of the Iowa Agriculture and Home Economics Experiment Station, Ames. Project No.1511.

2 Present address: Department of Animal Science, University of Florida, Gainesville.

3 Present address: Department of Animal Sciences, University of Kentucky, Lexington.

4 Department of Animal Science.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1968 by the American Society of Animal Science.