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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

Actif (Le fournisseur de données a soumis des métadonnées au cours de la dernière année civile)
Journal Article

Article de revue

Pregnancy rate in cows and heifers bred to bulls selected for semen quality  [1986]

Wiltbank, J.N.; Parish, N.P.;

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(Revue
Theriogenology (USA)
ISSN : 0093-691X

Information bibliographique

Langue:
English
Type:
Journal Article
Sur AGRIS depuis:
1987
Volume:
25
Numéro:
6
Page initiale:
779
Page finale:
783
Tous les titres:
"Pregnancy rate in cows and heifers bred to bulls selected for semen quality"@eng
Autre:
"2 references"
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Information bibliographique

Langue:
English
Type:
Journal Article
Sur AGRIS depuis:
1987
Volume:
25
Numéro:
6
Page initiale:
779
Page finale:
783
Tous les titres:
"Pregnancy rate in cows and heifers bred to bulls selected for semen quality"@eng
Autre:
"2 references"