تقدير المعالم الوراثية لبعض مظاهر الأداء الإنتاجي و التناسلي في أبقار الفريزيان
Other Title(s)
Estimation of genetic parameters of some productive and reproductive performance aspects in friesian cattle
Joint Authors
السلامي، محمد صالح محمد
الجواري، مثنى فتحي عبد الله
Source
Issue
Vol. 46, Issue 3 (30 Jun. 2018), pp.53-64, 12 p.
Publisher
University of Mosul College of Agriculture and Forestry
Publication Date
2018-06-30
Country of Publication
Iraq
No. of Pages
12
Main Subjects
Topics
Abstract EN
34 Friesian cows records were analyzed reared at L- hagi dairy cattle station (50 km north of Baghdad) during the period 1996-2005.
Heritability estimates for milk yield 305 day (MY305d), the period between calving and first estrous, services per conceptions, day open, lactation period , dry period , gestation period and calving interval were 0.17, 0.06, 0.07, 0.05, 0.07, 0.24, 0.02 and 0.03 respectively.
Repeatability estimates for the same traits were 0.20, 0.12, 0.07, 0.11, 0.15, 0.15, 0.14, and 0.05 respectively.
Genetic Correlation between (MY305d) and productive & reproductive traits were negative and highly significant (p>0.01(, and ranged between -0.30 and -0.73.
While Phenotypic Correlation between (MY305d) and other traits were positive and high.
Most Genetic and Phenotypic Correlations between studied traits except gestation period were positive and highly significant (p>0.01).
Breeding Value (BV) estimated of sire for (MY305d) were ranged between 14.720 and -8.106.
The highest and lowest values of Breeding Values of cows for (MY305d) were ranged between 352.224 and -159.705.
Real Producing Ability (RPA) of cows for (MY305d) were predicted between 674.051 and -365.234 as a deviation from overall mean of flock.
American Psychological Association (APA)
الجواري، مثنى فتحي عبد الله والسلامي، محمد صالح محمد. 2018. تقدير المعالم الوراثية لبعض مظاهر الأداء الإنتاجي و التناسلي في أبقار الفريزيان. مجلة زراعة الرافدين،مج. 46، ع. 3، ص ص. 53-64.
https://search.emarefa.net/detail/BIM-955194
Modern Language Association (MLA)
الجواري، مثنى فتحي عبد الله والسلامي، محمد صالح محمد. تقدير المعالم الوراثية لبعض مظاهر الأداء الإنتاجي و التناسلي في أبقار الفريزيان. مجلة زراعة الرافدين مج. 46، ع. 3 (حزيران 2018)، ص ص. 53-64.
https://search.emarefa.net/detail/BIM-955194
American Medical Association (AMA)
الجواري، مثنى فتحي عبد الله والسلامي، محمد صالح محمد. تقدير المعالم الوراثية لبعض مظاهر الأداء الإنتاجي و التناسلي في أبقار الفريزيان. مجلة زراعة الرافدين. 2018. مج. 46، ع. 3، ص ص. 53-64.
https://search.emarefa.net/detail/BIM-955194
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 61-64
Record ID
BIM-955194