Genomic inbreeding and relationships among Holsteins, Jerseys, and Brown Swiss
نویسندگان
چکیده
منابع مشابه
Hormones, metabolites, and reproduction in Holsteins, Jerseys, and their crosses.
Holsteins (HH), Jerseys (JJ), and their crosses in first (n=157) and second (n=107) lactation were used to determine if reproduction, progesterone (P4), insulin-like growth factor 1 (IGF-1), insulin, nonesterified fatty acids (NEFA), and milk production differed between genetic groups. Thirty-four cows were Holstein-Jersey (HJ) crosses, 46 were Jersey-Holstein (JH) crosses, 48 were purebred Hol...
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پژمردگی فوزاریومی خربزه و طالبی با عامل fusarium oxysporum f. sp. melonis از بیماری های مهم قارچی در مناطق رشد این گیاهان می باشد. جدایه های f. oxysporum از گیاهان و خاک ریزوسفر متعلق به پنج استان مهم تولیدکننده ی خربزه و طالبی جداسازی شد و بر پایه ی بیماری زایی در ارقام افتراقی، گروه های سازگاری رویشی (vegetative compatibility groups)، توالی سنجی ناحیه ی جداکننده ی بین ژنی دی اِن اِی ریبوزومی (n...
15 صفحه اولMating programs including genomic relationships and dominance effects.
Computerized mating programs using genomic information are needed by breed associations, artificial-insemination organizations, and on-farm software providers, but such software is already challenged by the size of the relationship matrix. As of October 2012, over 230,000 Holsteins obtained genomic predictions in North America. Efficient methods of storing, computing, and transferring genomic r...
متن کاملEstimation of Inbreeding in Slovenian Brown-swiss Population
1 Agricultural Institute of Slovenia, Hacquetova ulica 17, 1000 Ljubljana, Slovenia, e-mail: [email protected] 2 Same address as 1, e-mail: [email protected] ABSTRACT Breeding programs require control of the level (F) and rate (ΔF) of inbreeding in order to avoid inbreeding depression. Increasing availability of genomic information has enabled a more accurate estimation of F and ΔF. This st...
متن کاملOverview of progeny-test programs of artificial-insemination organizations in the United States.
Characteristics of progeny-test (PT) programs of artificial insemination (AI) organizations in the United States were examined for changes since 1960. Mean number of bulls that were progeny tested annually by major AI organizations during the mid 1990s was 11 for Ayrshires, 24 for Brown Swiss, 21 for Guernseys, 1261 for Holsteins, 112 for Jerseys, and 3 for Milking Shorthorns. Mean parent age a...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2011
ISSN: 0022-0302
DOI: 10.3168/jds.2011-4500