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370 related items for PubMed ID: 18456439

  • 1. Ram novelty and the duration of ram exposure affects the distribution of mating in ewes exposed to rams during the transition into the breeding season.
    Hawken PA, Beard AP.
    Anim Reprod Sci; 2009 Apr; 111(2-4):249-60. PubMed ID: 18456439
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  • 2. Short term, repeated exposure to rams during the transition into the breeding season improves the synchrony of mating in the breeding season.
    Hawken PA, Evans AC, Beard AP.
    Anim Reprod Sci; 2008 Jul; 106(3-4):333-44. PubMed ID: 17616281
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  • 3. The effects of ram exposure during progestagen oestrus synchronisation and time of ram introduction post progestagen withdrawal on fertility in ewes.
    Hawken PA, Beard AP, O'Meara CM, Duffy P, Quinn KM, Crosby TF, Boland MP, Evans AC.
    Theriogenology; 2005 Feb; 63(3):860-71. PubMed ID: 15629803
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  • 4. Effect of ram exposure at the end of progestagen treatment on estrus synchronisation and fertility during the breeding season in ewes.
    Evans AC, Duffy P, Crosby TF, Hawken PA, Boland MP, Beard AP.
    Anim Reprod Sci; 2004 Sep; 84(3-4):349-58. PubMed ID: 15302377
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  • 5. Sexual performance of rams sequentially exposed to short-tailed and fat-tailed ewes.
    Kridli RT, Abdullah AY, Shaker MM, Mahmoud KZ.
    Reprod Domest Anim; 2008 Aug; 43(4):497-501. PubMed ID: 18363610
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  • 9. The influence of breeding intensity on above- and below-average sexual performance rams in single- and multiple-sire breeding environments.
    Stellflug JN, Cockett NE, Lewis GS.
    Anim Reprod Sci; 2008 Mar 03; 104(2-4):248-56. PubMed ID: 17383123
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  • 10. Effect of breed and age on sexual behaviour of rams.
    Simitzis PE, Deligeorgis SG, Bizelis JA.
    Theriogenology; 2006 May 03; 65(8):1480-91. PubMed ID: 16226306
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  • 11. Accelerated lambing achieved by a photoperiod regimen consisting of alternating 4-month sequences of long and short days applied year-round.
    Cameron J, Malpaux B, Castonguay FW.
    J Anim Sci; 2010 Oct 03; 88(10):3280-90. PubMed ID: 20601525
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  • 12. Prior exposure of maiden ewes to rams enhances their behavioural interactions with rams but is not a pre-requisite to their endocrine response to the ram effect.
    Hawken PA, Evans AC, Beard AP.
    Anim Reprod Sci; 2008 Oct 03; 108(1-2):13-21. PubMed ID: 17698305
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  • 13. Effects of recent sexual experience and melatonin treatment of rams on plasma testosterone concentration, sexual behaviour and ability to induce ovulation in seasonally anoestrous ewes.
    Rosa HJ, Juniper DT, Bryant MJ.
    J Reprod Fertil; 2000 Sep 03; 120(1):169-76. PubMed ID: 11006159
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  • 17. Use of gonadotropin releasing hormone to improve reproductive responses of ewes introduced to rams during seasonal anestrus.
    Jordan KM, Inskeep EK, Knights M.
    Anim Reprod Sci; 2009 Dec 03; 116(3-4):254-64. PubMed ID: 19261397
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  • 18. Influence of classification levels of ram sexual activity on spring breeding ewes.
    Stellflug JN.
    Anim Reprod Sci; 2002 Apr 15; 70(3-4):203-14. PubMed ID: 11943490
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  • 19. Continuous exposure to sexually active rams extends estrous activity in ewes in spring.
    Abecia JA, Chemineau P, Flores JA, Keller M, Duarte G, Forcada F, Delgadillo JA.
    Theriogenology; 2015 Dec 15; 84(9):1549-55. PubMed ID: 26329664
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  • 20. Reproductive performance of Suffolk and Suffolk-cross ewes and ewe lambs exposed to vasectomized rams before breeding.
    Hudgens RE, Martin TG, Diekman MA, Waller SL.
    J Anim Sci; 1987 Nov 15; 65(5):1173-9. PubMed ID: 3693144
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