ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] In making the reciprocal crosses, semen was collected from the male birds, and the females were inseminated by the methods of Burrows and Quinn4. At first only semen from the blood-donor was used ; later, in order to increase the volume per hen, that from several males was pooled. All eggs laid ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/177437b0
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