Comparison between different procedures to determine the relative importance of the lifetime performance traits in predicting breeding values of Holstein cows (Record no. 49507)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02372cab a2200265Ia 45 0 |
| 001 - CONTROL NUMBER | |
| control field | u196438 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | SIRSI |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 111124s2009 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 EJAP V46 No2 2 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Ibrahim, M. A. M. |
| 240 10 - UNIFORM TITLE | |
| Uniform title | Egyptian journal of animal production, 2009 v. 46 (2) |
| Medium | [electronic resource]. |
| 245 10 - TITLE STATEMENT | |
| Title | Comparison between different procedures to determine the relative importance of the lifetime performance traits in predicting breeding values of Holstein cows |
| Medium | [electronic resource]. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | المقارنة بين طرق مختلفة لتحديد الأهمية النسبية لصفات الآداء طيلة العمر للتنبؤ بالقيم التربوية لأبقار الهولستين. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | P. 93-102. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Includes references. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Data used in this study comprised 2730 lactation records of 850 Holstein cows sired by 316 sires. The Holstein cows belong to a commercial farm. The objective of this work was to determine to what .extent breeding value (BV) is influenced by lifetime variables (Total milk yield at first lactation (TMYJ).Total milk yieid at last lactation(TMYL). 305 milk yield at first lactation (305M1). 305 milk yield at last lactation (305ML), milk per day at productive life (Mday),number of complete lactations (NCL), lifetime days in milk (LDIM),productive life (Plife), age at disposal (CULL) and longevity index (LI, %)) using the stepwise multiple linear regression analysis (SMLR) and partial least squares regression (PLS) procedures. The variables are important for the projection of breeding values (BV) were the variables measured-in-weight (TMY1, MDAY, TMYL, 305M1 and 305ML).The variables measured-in-duration (day or month or lactation) (NCL, U, Cull, Plife and LDIM) have low influence on the BV estimations model. PLS resulted in R! of 0.64 and root mean squares for error) of223. SMLR results were slightly lower R1 of 0.61 with root mean squares for error of231 using the same lifetime variables. |
| 546 ## - LANGUAGE NOTE | |
| Language note | Summary in Arabic. |
| 596 ## - | |
| -- | 1 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Holstein-Friesian cattle |
| General subdivision | Breeding |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Milk yield. |
| 773 0# - HOST ITEM ENTRY | |
| Title | Egyptian journal of animal production. |
| Related parts | 2009.v.46 (2) |
| International Standard Serial Number | 0302-4520 |
| Control subfield | nnas |
| Record control number | u196001 |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://nile.enal.sci.eg/EALE/2009/EJAP/4609/2/93.pdf">http://nile.enal.sci.eg/EALE/2009/EJAP/4609/2/93.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 |
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