Effect of Feeding Rye Silage and Feed Restriction on both Growth and Reproductive Performances in Replacing Gilts

후보돈에서 호맥 사일리지의 급여와 사료의 제한급여가 생산성과 번식능력에 미치는 효과

  • 조진호 (단국대학교 동물자원과학과) ;
  • 한영근 (농협중앙회 축산연구소) ;
  • 민병준 (단국대학교 동물자원과학과) ;
  • 진영걸 (단국대학교 동물자원과학과) ;
  • 김해진 (단국대학교 동물자원과학과) ;
  • 유종상 (단국대학교 동물자원과학과) ;
  • 김정우 (단국대학교 동물자원과학과) ;
  • 김인호 (단국대학교 동물자원과학과)
  • Published : 2006.02.28


This study was conducted to evaluate the effects of feeding rye silage and feed restriction on both growth and reproductive performances in replacing gilts. Twenty four replacing gilts (Landrace×Yorkshire, 67.63±1.17kg initial BW) were used in 49 d growth assay. Dietary treatments were included 1) CON(basal diet), 2) S15(15% feed restriction + ad libitum rye silage) and 3) S30(30% feed restriction + ad libitum rye silage). In growth performance, average daily gain and average daily feed intake were the highest in CON among treatments(P<0.05). Average daily silage intake was not significantly different between S15 and S30 treatments(P>0.05). Feed conversion ratio was the lowest in CON among treatments(P<0.05). Average silage intake of S15 and S30 treatments was increased as time goes by(P<0.05). While all gilts of S15 and S30 treatments became pregnant, one gilt of CON became pregnant. Also, first estrus and mating were occured earlier in S15 and S30 than those of CON. In conclusion, 15% feed restriction and feeding rye silage reduced growth performance, reached earlier to first estrus and increased pregnancy rate in replacing gilts.


Rye silage;Performance;First estrus;Pregnancy rate;Replacing gilts


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