Estimation of genetic parameters for some egg production traits in three generations of crossing some local strains with two commercial lines of laying hens (Record no. 60911)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02966cab a2200277Ia 45 0 |
| 001 - CONTROL NUMBER | |
| control field | u212115 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | SIRSI |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 110313s2014 ua ss b eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EAL |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| Language code of summary or abstract | ara |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | ART EPSJ V34 NoIV 4 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Abou El-Ghar, R. Sh. |
| 240 10 - UNIFORM TITLE | |
| Uniform title | Egyptian poultry science journal, 2014 v. 34 (IV) |
| Medium | [electronic resouce]. |
| 245 10 - TITLE STATEMENT | |
| Title | Estimation of genetic parameters for some egg production traits in three generations of crossing some local strains with two commercial lines of laying hens |
| Medium | [electronic resouce]. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | تقدير المعايير الوراثية لبعض صفات إنتاج البيض فى ثلاث أجيال من الخلط بين بعض سلالات الدجاج المحلية مع خطان من خطوط دجاج البيض التجارى. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | p.939-957. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Includes references. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The current investigation was undertaken to study the effects of generation, hatch and genotype; to estimate the components of genetic variance and heritability and to determine the best cross within each generation based on multiple egg production traits. This information helps breeders to employ suitable breeding methodology for obtaining the parental groups for producing a commercial egg-type breed of chicken characterized by good productivity. Animal model analyses under both additive and dominance models were used to estimate the additive and dominance components of genetic variance. Best linear unbiased prediction (BLUP) was used for predicting the best cross for egg production traits. The local sire strains were (Silver Montazah, Baheij, Matrouh, Mandarah and Golden Montazah) together with two commercial dame lines (Lohman Brown and Lohman Selected Leghorn) were used in this experiment. The results showed clearly that all egg production traits in this study showed statistically insignificant differences under fixed effects of generations, hatches and genotypes. Contrarily, egg production traits were largely affected by the interactions generations x genotypes and generation x hatch x genotype. Moreover, the egg production traits in the first and second generations were genetically controlled by additive and dominance genetic variations, while in the third generation only dominance genetic variance was accounted a major part of the total genetic variance for all egg production traits studied. Consequently, heritability estimates in this study were low to moderate for egg production traits. Key Words: Animal model, additive, dominance, local chicken & commercial dame lines. |
| 546 ## - LANGUAGE NOTE | |
| Language note | Summary in Arabic. |
| 596 ## - | |
| -- | 1 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Poultry |
| General subdivision | Productivity. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Poultry |
| General subdivision | Genetic engineering. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Eggs |
| General subdivision | Production. |
| 773 0# - HOST ITEM ENTRY | |
| Title | Egyptian Poultry Science Journal. |
| Related parts | 2014.v.34(IV) |
| International Standard Serial Number | 1110-5623 |
| Control subfield | nnas |
| Record control number | u189066 |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://nile.enal.sci.eg/EALE/2014/EPSJ/3414/IV/939.pdf">http://nile.enal.sci.eg/EALE/2014/EPSJ/3414/IV/939.pdf</a> |
| Public note | Full Text Article. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Articles |
| Source of classification or shelving scheme | Library of Congress Classification |
No items available.