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A Genome scan to detect QTL affecting dairy traits in a dairy sheep backcross Sarda x Lacaune population

Carta, Antonello and Barillet, Françis and Casu, Sara and Cribiu, Edmond Paul and Elsen, Jean Michel and Fraghì, Andrea and Mura, Laura and Schibler, Laurant (2003) A Genome scan to detect QTL affecting dairy traits in a dairy sheep backcross Sarda x Lacaune population. Italian Journal of Animal Science, Vol. 2 (Suppl. 1), p. 31-33. eISSN 1828-051X. Article.

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Recently in Mediterranean countries as France, Italy and Spain, dairy sheep selection has been efficiently oriented towards milk yield and milk composition. More attention has been now paid to traits related to the reduction of production costs (milkability, functional traits, longevity), health (resistance to mastitis or parasitic diseases), safety of food (reduction in contaminants) and quality (milk fatty acids composition). Therefore, research combining classical quantitative approach and QTL detection is needed, either on-farm by implementing experimental recording schemes, or in experimental flocks especially for traits costly to record. In this framework, two complementary QTL detection projects have been implemented in France and Italy: one based on crossbreeding between Sarda and Lacaune breeds (Carta et al., 2002) and the other based on purebred granddaughter families of French dairy sheep breeds (Schibler et al., 2002). In this paper, first results of a genome scan based detection of QTL affecting milk traits in first lactation in the Sarda x Lacaune backcross population are presented.

Item Type:Article
ID Code:5802
Uncontrolled Keywords:Dairy sheep, backcross, QTL, milk traits
Subjects:Area 07 - Scienze agrarie e veterinarie > VET/02 Fisiologia veterinaria
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > Istituto zootecnico e caseario per la Sardegna, Olmedo
Publisher:Avenue media on behalf of Scientific Association of Animal Production (ASPA)
Publisher Policy:Depositato per gentile concessione dell'ASPA
Additional Information:Relazione presentata al 15. Congresso nazionale ASPA, Parma, 18-20 giugno 2003.
Deposited On:23 Mar 2011 09:59

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