Nadia Ahmed Hussein Seleim <br/><br/>
Some factors affecting milk production in cattle /  
 بعض العوامل المؤثرة على انتاج اللبن فى الماشية 
Nadia Ahmed Hussein Seleim ; SupervisedAhmed Farid Ibrahim Elkholy , Mohamed Abdelaziez Ibrahim , Hamdi Mohamed Aly 
 - Cairo :   Nadia Ahmed Hussein Seleim ,   2007 
 - 80P. ;   25cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty Of Agriculture - Department Of Animal Production 
<br/><br/> Atotal number of 1173 normal lactation records for 447 Friesian cows sired by 64 bulls from herd of Sakha research farm was used to study some milk production traits and effects of some non - genetic factors on them , estimation of heritability.Data were statistically analysed 
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<br/><br/><label>Subjects--Index Terms: </label>Estimation of heriability Milk production traits Normal lactation records