Longevity and age structure in dairy cattle
Halawa, Arafa Attia Arafa.
Longevity and age structure in dairy cattle [computer files]/ طول الحياه الإنتاجية و التركيب العمرى فى ماشية اللبن. Arafa Attia Arafa Halawa. - 2007. - Computer laser optical disks; 4 3/4 in.
Thesis (Ph.D.)--Ain Shams University,2007.
Includes bibliographical references (leaves 70-81)
System requirment:Adope reader 8 (version 8.1.2)
Summary in English.
Dairy cattle--Longevity.
Dairy cattle--Breeding.
Dairy cattle--Genetics.
Milk yield.
Cattle--Reproduction.
Longevity and age structure in dairy cattle [computer files]/ طول الحياه الإنتاجية و التركيب العمرى فى ماشية اللبن. Arafa Attia Arafa Halawa. - 2007. - Computer laser optical disks; 4 3/4 in.
Thesis (Ph.D.)--Ain Shams University,2007.
Includes bibliographical references (leaves 70-81)
System requirment:Adope reader 8 (version 8.1.2)
Summary in English.
Dairy cattle--Longevity.
Dairy cattle--Breeding.
Dairy cattle--Genetics.
Milk yield.
Cattle--Reproduction.