Linseed meal during early pregnancy increases litter size in pigs without affecting post-natal growth

Vonnahme,K.A.,Zimprich,R.C.,Harris,E.K.,Berg,E.P.,Newman,D.J.andBuchanan,D.S.2010.Linseedmealduringearlypregnancyincreaseslittersizeinpigswithoutaffectingpost-natalgrowth.Can.J.Anim.Sci.90:491 493.Todeterminehowfeedinglinseedmeal(LSM)duringgestationinfluenceslittersize,placentalweight,andpigletgrowth,sows(n 30) received a phytoestrogen-free Control diet throughout gestation; 12.5% LSM diet throughout gestation(LSM114);or12.5%LSMdietfromday1today15ofgestationandcontroldietuntilparturition(LSM15).Maternaldietdidnotaffectbirthweight,placentalweight,orpostnatalgrowth.Thenumberoffullyformedpigletswasincreased(P 0.05)inLSM15sowscomparedwithControlandLSM114sows(13.5vs.10.1and11.691.0,respectively).FeedingLSMduringthefirst2wkafterbreedingmayenhancelittersize.Key words: Littersize,linseedmeal,pigVonnahme,K.A.,Zimprich,R.C.,Harris,E.K.,Berg,E.P.,Newman,D.J.etBuchanan,D.S.2010.Letourteaudelinende´butdegrossesseaugmentelatailledesporte´eschezlesporcssansaffecterlacroissancepost-natale.Can.J.Anim.Sci.90:491 493.Afindede´terminercommentnourritureavecfarinedesgrainesdelin(LSM)pendantlagestationinfluencetaille de litie`re, poid placentaire, et croissance des porcelets, truies (n 30) ont recu un re´gime de controˆle sans-phytoestrogenpendanttoutelagestation;alimentationLSMde12,5%toutesagestation(LSM114);ou12,5%LSMDie`tedejour1a`15dure´gimedegestation,etcontroˆlejusqu’a`laparturition(LSM15).Alimentationmaternellen’affectaitpasnaissance, poids placentaire ou croissance postnatale. Porcelets entie`rement forme´se´te´augmente´es (P 0,05) dans lestruies LSM15 par rapport a`la commande et LSM114 truies (13,5 VS 10.1 et 11,691.0, respectivement). AlimentationLSMpendantlesdeuxpremie`ressemainesapre`sreproductionpeutame´liorerlatailledelalitie`re.Mots cle´s: Tailledelitie`re,farinedesgrainesdelin,porc