نوع مقاله : مقالات علمی- پژوهشی
نویسندگان
1 گروه علوم دامـی، دانشـکده کشاورزی، دانشگاه فردوسی مشهد، مشهد، ایران
2 گروه علوم دامی، دانشکده کشاورزی، دانشگاه فردوسی مشهد، مشهد، ایران.
3 گروه علوم دامی ، دانشکده کشاورزی، دانشگاه فردوسی مشهد، مشهد، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In this study 21721 pedigree records of Iranian Baluchi sheep registered during 30 years (1979 to 2008) at
Abasabad breeding station were used to estimate pedigree completeness level, inbreeding and average
relationship coefficients of animals. During the studied years pedigree completeness level has a positive trend
with the most recent cohort of lambs born in 2008 having pedigrees with 6.2 equivalent generations of known
ancestors. Also, average inbreeding coefficient increased in these years and linear regression of inbreeding on
year of birth resulted in an estimated rate of inbreeding of 0.15 %/yr. Inbreeding of number 2 flock was higher
than that was in number one (P
کلیدواژهها [English]
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