Farrowing interval and pig performance

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dc.contributor.author Wheat, J.D.
dc.contributor.author Suba, M.S.
dc.contributor.author Dayton, A.D.
dc.contributor.author Allee, G.L.
dc.contributor.author Hines, Robert H.
dc.date.accessioned 2010-04-30T17:37:01Z
dc.date.available 2010-04-30T17:37:01Z
dc.date.issued 2010-04-30T17:37:01Z
dc.identifier.uri http://hdl.handle.net/2097/3775
dc.description.abstract The average for 1813 farrowing intervals was 16.78 minutes with a standard deviation of 25.37 minutes. Farrowing duration averaged 141.51 minutes, ranging from 11 to 618 minutes. The difference between farrowing intervals for Yorkshire and Yorkshire-Duroc crossbred dams was nonsignificant. Neither season of the year, birth order, sire of the litter nor sex of the pig significantly affected farrowing interval. However, dam of the litter affected farrowing interval in both groups, Yorkshires (P<.05) and crossbreds (P<.01), as did birth weight (r=.17, P<.0l). Number of pigs born alive and average farrowing interval for the dam were correlated negatively (r=-.39, P<.0l), while the correlation between farrowing duration and number of pigs born alive was .22 (P<.0l). Consequently, sow producti vity index was related negatively with average farrowing interval (r=-.30, P<.0l), but the correlation between farrowing duration and sow productivity index was .16 (P<.05). en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Swine day, 1983 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 84-174-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 442 en_US
dc.subject Swine en_US
dc.subject Farrowing en_US
dc.subject Performance en_US
dc.title Farrowing interval and pig performance en_US
dc.type Conference paper en_US
dc.date.published 1983 en_US
dc.citation.epage 35 en_US
dc.citation.spage 33 en_US
dc.description.conference Swine Day, Manhattan, KS, November 10, 1983 en_US

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