지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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- 자료유형
- 학술저널
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- 2014.1
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The objective of this study was to describe the population structure and inbreeding, and to quantify their effectson weights at different ages of Mehraban sheep in Iran. The analysis was based on the pedigree information of26990 animals and 10278 body weight records from birth to yearling age. Data and pedigree information werecollected during 1994 to 2011 by the breeding station of Mehraban sheep. The population structure was analyzedusing the CFC program. Inbreeding of all animals was calculated by INBUPGF90 program. All animals were groupedinto three classes according to their inbreeding coefficients: the first class included non-inbred animals (F=0); andthe second and third classes included inbred animals (0<F<0.05 and F≥0.05, respectively). The average inbreedingin Mehraban sheep was 1.69%. Founder equivalent (fe) values were estimated to be 4244, 3116 and 2965 during1994-1999, 2000-2005 and 2006-2011, respectively. The effective population sizes (Ne) were 363, 5080 and 5740during 1994-1999, 2000-2005 and 2006-2011, respectively. Generation interval was 2.15 years for this breed of sheep.
Regression coefficients of birth weight, 3-month weight, 6-month weight and yearling weight on lamb inbreedingwere estimated to be -6.34?0.69, -14.68?5.33, 48.00?9.43 and 98.65?15.65, respectively. Both positive and negativeinbreeding effects were found in the current study. The utilization of a program for designed mating system, in thepresent flock, could be a suitable approach to keep the level of inbreeding under control.
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참고문헌 (25)
참고문헌 신청
Aguilar I / 2008 / Technical note: recursive algorithm for inbreeding coefficients assuming nonzero inbreeding of unknown parents / J Dairy Sci 91 : 1669 ~ 1672
Alvarez I / 2004 / Genetic relationships and admixture among sheep breeds from Northern Spain assessed using microsatellites / J Anim Sci 82 : 2246 ~ 2252
Analla M / 1999 / Study of the variability of the response to inbreeding for meat production in merino sheep / J Anim Breed Genet 116 (6) : 481 ~ 488
Barczak E / 2009 / Inbreeding and inbreeding depression on body weight in sheep / J Anim Feed Sci 18 : 42 ~ 50
Barker JSF / 2001 / Conservation and management of genetic diversity: a domestic animal perspective / Can J Forest Res 31 : 588 ~ 595
Alvarez I / 2004 / Genetic relationships and admixture among sheep breeds from Northern Spain assessed using microsatellites / J Anim Sci 82 : 2246 ~ 2252
Analla M / 1999 / Study of the variability of the response to inbreeding for meat production in merino sheep / J Anim Breed Genet 116 (6) : 481 ~ 488
Barczak E / 2009 / Inbreeding and inbreeding depression on body weight in sheep / J Anim Feed Sci 18 : 42 ~ 50
Barker JSF / 2001 / Conservation and management of genetic diversity: a domestic animal perspective / Can J Forest Res 31 : 588 ~ 595
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