الفهرس 
Material and methodsOnly 14 pages are availabe for public view
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Abstract
SUUUu.aHY
Blood Herum samples collected f r-o.n 425 Fayoumi l:.yers
representing 40 sire frl.iIlilien and 241 d:;m f:’~’1ilieD wer-e used
to determino the uroa, uric uci.d unu {Llkl’lil1f.: pho:J.:.)h;.,tase
types and frequencies of alleles controlling their occurence,
as well us th.eir effects on blood seru;n co.nponent.s and
productive traits. The genetic correls.tion coefficients among
the studied trults were also estimated.
The obtained reaul ts rnny be aumrne r i.z ed LU f ol l.own :
1- Two levels for each. locus ••e..r.e det er-mf.ned , Both Lm levels
of urea (64.9 %) and uric acid (53.3%) were mare frequent
than the hioh level of euch. Howev cr-, the low level of
alkuline phoaphc tnae (45.9%) W:’9 leas frequent.
determined by a single locus with two allele~. The ~llleles
for tne low level of each of ure3 und uric acid were
assumed to be dominant to that of the hIgh lev~lt whilp
the reverse. trend was found w1th alkaline phosphatase.
3- The respective gene frequencies were 0.408 Va. 0.592
for urea locus, 0.)17 Va. 0.68) for uric acid locuR and
0.677 Va. 0.32) for the i~lkul1ne .Phoaphllt;ltlt· ] f)(’ll;~.
4- Both &’e~e•• l ’Ye allele of urea and uric acid 1Dcr8&8iBg each
of glucose, urea. uric acid, total proteins, alkaline
phosphatase, traDB8m1nase, egg number and improvins age
at sexual maturity.
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5- Botb recessive Q11elG8 of urea and
increased each of serum glucose, urea, albumen, bilirubin.
alkf.l.linepnospnatase, transum.1nnse, Hgg nu;nber u nd
improving age of sexual maturity.
6- BottL recessJ;”e alleliia ot uric acid and ulkal1ne phosphatase
increased each of serum glucose, urea, alakline
phosphatase, trans-aminase, egg number and improving age
of sexual maturity.
7- Both rec&ss1ve alleles of urea, uric acid and
alkaline phosphatase increased each of glucose, urea,
alkaline pbosphatase, transaminase, egg n~~ber and improved
a.ge of sexual mAturity. The three loci had no
significant effect on both body. weight at sexual maturity
and egg weight.
8- To produce strains of chickenS w~ich would be chur~cterized
with early sexual maturity and more eC0 number,
pUllets should be oelected tlffiOnC birds with tbe recessive
61- .1e18. of botb urea, urlc ac1dand alkall.ne pnoapl1&tase•