Determining the valine requirement of the mgr-producing lactating sow

dc.citation.epage14en_US
dc.citation.spage10en_US
dc.contributor.authorRichert, B.T.
dc.contributor.authorPettigrew, J.E.
dc.contributor.authorWalker, R.D.
dc.contributor.authorJohnston, L.J.
dc.contributor.authorBlum, S.A.
dc.contributor.authorTokach, Michael D.
dc.contributor.authorGoodband, Robert D.
dc.contributor.authorNelssen, Jim L.
dc.contributor.authoreidmtokachen_US
dc.contributor.authoreidgoodbanden_US
dc.contributor.authoreidjnelssenen_US
dc.date.accessioned2010-03-26T19:18:07Z
dc.date.available2010-03-26T19:18:07Z
dc.date.issued2010-03-26T19:18:07Z
dc.date.published1994en_US
dc.description.abstractTwo hundred-three large white x Landrace or large white x Chester White x Landrace sows (40 or 41/treatment, avg parity 3.7) were used in a 26 d lactation experiment to determine the valine requirement of high-producing sows. All diets were formulated to .9% lysine with all amino acids other than valine formulated to be at least 110% of their respective ratios relative to lysine. Synthetic valine replaced cornstarch to provide .75, .85, .95, 1.05, and 1.15% dietary valine. Corresponding valine:lysine ratios were 83, 94, 106, 117, and 128% of lysine. The experiment was conducted at two experiment stations from July, 1993 through January, 1994. Mean litter size of all treatments after adjustment was 10.33 pigs. Sow feed intake and grams of lysine intake were not different among treatments. Grams of valine intake increased linearly as dietary valine increased. Litter weight at d 21 and weaning increased linearly with increasing dietary valine. Litter weight gain from d 0 to 7 increased linearly as dietary valine increased to 1.15 %. Litter weight gain from d 0 to 21 and d 0 to weaning increased linearly as dietary valine increased, with the greatest portion of the response observed as valine increased to 1.05% of the diet. Dietary valine had no effect on sow weight change, 10th rib backfat (BF) change, or last lumbar BF change from d 0 to 21 or d 0 to weaning. Days to estrus postweaning were not affected by dietary valine. These results demonstrate that high-producing sows have a dietary valine requirement of at least 117% of lysine during lactation (66.4 g/d valine), much greater than is currently recommended by NRC (1988; 100% of lysine) or ARC (1981; 70% of lysine) to maximize litter weaning weight and litter weight gain.en_US
dc.description.conferenceSwine Day, Manhattan, KS, November 17, 1994en_US
dc.identifier.urihttp://hdl.handle.net/2097/3362
dc.publisherKansas State University. Agricultural Experiment Station and Cooperative Extension Serviceen_US
dc.relation.isPartOfSwine day, 1994en_US
dc.relation.isPartOfKansas Agricultural Experiment Station contribution; no. 95-175-Sen_US
dc.relation.isPartOfReport of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 717en_US
dc.subjectSwineen_US
dc.subjectValineen_US
dc.subjectLactationen_US
dc.subjectSowsen_US
dc.titleDetermining the valine requirement of the mgr-producing lactating sowen_US
dc.typeConference paperen_US

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Swine94pg10-14.pdf
Size:
898.97 KB
Format:
Adobe Portable Document Format

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.69 KB
Format:
Item-specific license agreed upon to submission
Description:

Collections