Selection and correlated response for egg production traits in inshas and silver montazah strains of chickens (Record no. 44529)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03505cab a2200313Ia 45 0 |
| 001 - CONTROL NUMBER | |
| control field | u189885 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | SIRSI |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 110228s2006 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 V26 NoII 20 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Saleh, K. |
| 240 10 - UNIFORM TITLE | |
| Uniform title | Egyptian poultry science journal, 2006 v. 26 (II) |
| Medium | [electronic resouce]. |
| 245 10 - TITLE STATEMENT | |
| Title | Selection and correlated response for egg production traits in inshas and silver montazah strains of chickens |
| Medium | [electronic resouce]. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | الانتخاب والاستجابة المرتبطة لصفات إنتاج البيض في سلالتي دجاج انشاص والمنتزه الفضي. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | p.749-770. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Includes references. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Two local strains of chickens selected two generations for increasing egg number up to 40 wks of age (Inshas strain) and egg weight at 40 wks of age (Silver Montazah strain) were used to study the changes in egg number and egg weight after selection and to estimate correlated responses and genetic parameters of some economic traits. The results of selection for egg number at 40 wks of age showed significant differences between selected and control lines as well as among generations. The realized and expected response were 15.2 and 5.33 eggs over two generations. The direct selection for egg weight at 40 wks of age showed also highly significant differences among generations as well as selected and control lines. Moreover, the realized and expected response were 3.70 and 3.19gm over two generations. Heritability estimates for egg number at 40 wks of age in Inshas strain based on sire, dam and sire plus dam components of variance were 0.20, 0.32 and 0.29, respectively, the corresponding estimates of egg weight at 40 wks of age in Silver Montazah strain were 0.52, 0.92 and 0.72, respectively. Negative genetic and phenotypic correlations were observed between egg number at 40 wks of age and age at sexual maturity, duration period of the first ten eggs, egg weight and feed conversion. However, positive correlations between egg weight at 40 wks of age and body weight at sexual maturity, age at sexual maturity, duration period of the first ten eggs and egg mass, while negative correlations with egg number and feed conversion were detected. Generally, according to the results of the present experiment, it could be noticed that selection for increasing egg number at 40 wks of age in Inshas strain increased egg number and egg mass as well as improved feed conversion and reduced age at sexual maturity and duration period of the first ten eggs. However, selection for high egg weight at 40 wks in Silver Montazah strain increased egg weight, egg mass, age at sexual maturity and duration period of the first ten eggs, and improved body weight and feed conversion. Finally, selection program is suggested to be put to improve the egg productive performance of Inshas strain (as a new local strain) and crossed it with Silver Montazah strain to produce a commercial hybrid used in rural production. |
| 546 ## - LANGUAGE NOTE | |
| Language note | Summary in Arabic. |
| 596 ## - | |
| -- | 1 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Chickens |
| General subdivision | Breeding. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Eggs |
| General subdivision | Quality |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Chickens |
| General subdivision | Feeding and feeds. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Chickens |
| General subdivision | Genetics. |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Abd El-Ghany, F. |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hassan, Enayat A. |
| 773 0# - HOST ITEM ENTRY | |
| Title | Egyptian Poultry Science Journal. |
| Related parts | 2006.v.26(II) |
| 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/2006/EPSJ/2606/II/749.pdf">http://nile.enal.sci.eg/EALE/2006/EPSJ/2606/II/749.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.