The Effect Of Sex-Linked Dwarf (Dw), Naked Neck (Na) And Frizzle (F) Genes On Various Traits In Laying Hens Under Tropical Conditions
A study was carried out to investigate the effect of the sex-linked dwarf (dw) , naked neck (Na) and frizzle (l) genes on various quantitative traits in layers and also to identify the appropriate genotypes under tropical conditions . The experimental stock comprised of non-dwarf non-frizzled no...
Saved in:
Main Author: | |
---|---|
Format: | Thesis |
Language: | English English |
Published: |
1991
|
Subjects: | |
Online Access: | http://psasir.upm.edu.my/id/eprint/12294/1/FPV_1991_4_A.pdf |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my-upm-ir.12294 |
---|---|
record_format |
uketd_dc |
spelling |
my-upm-ir.122942011-09-08T07:44:33Z The Effect Of Sex-Linked Dwarf (Dw), Naked Neck (Na) And Frizzle (F) Genes On Various Traits In Laying Hens Under Tropical Conditions 1991-04 Hj. Idrus, Zulkifli A study was carried out to investigate the effect of the sex-linked dwarf (dw) , naked neck (Na) and frizzle (l) genes on various quantitative traits in layers and also to identify the appropriate genotypes under tropical conditions . The experimental stock comprised of non-dwarf non-frizzled non-naked neck or normal (Dw- ff nana) , naked neck (Dw- ff Nana) , frizzled (Dw- Ff nana) , frizzled naked neck (Dw- Ff Nana) , dwarf (dw- ff nana) , dwarf naked neck (dw- ff Nana) , dwarf frizzled (dw- Ff nana) and dwarf f rizzled naked neck (dw- Ff Nana) genotypes . The dw was observed to cause a profound reduction in body weight , body conformation , egg production and egg weight . However , the dw reduced feed intake and improved feed efficiency . The dw also had detrimental effect on several egg quality traits. Body weight and body conformation measurements were not affected by the Na , while feed intake was significantly increased in both dwarf and non-dwarf populations . The Dw- ff Nana hens were observed to have better egg production and egg weight . Shell quality traits were found to improve due to the Na . However , among the dwarf population , the Na had an adverse effect on feed efficiency. Poultry breeds Poultry - Breeding 1991-04 Thesis http://psasir.upm.edu.my/id/eprint/12294/ http://psasir.upm.edu.my/id/eprint/12294/1/FPV_1991_4_A.pdf application/pdf en public masters Universiti Pertanian Malaysia Poultry breeds Poultry - Breeding Faculty of Veterinary medicine English |
institution |
Universiti Putra Malaysia |
collection |
PSAS Institutional Repository |
language |
English English |
topic |
Poultry breeds Poultry - Breeding |
spellingShingle |
Poultry breeds Poultry - Breeding Hj. Idrus, Zulkifli The Effect Of Sex-Linked Dwarf (Dw), Naked Neck (Na) And Frizzle (F) Genes On Various Traits In Laying Hens Under Tropical Conditions |
description |
A study was carried out to investigate the effect of the
sex-linked dwarf (dw) , naked neck (Na) and frizzle (l) genes on
various quantitative traits in layers and also to identify the
appropriate genotypes under tropical conditions . The experimental
stock comprised of non-dwarf non-frizzled non-naked neck
or normal (Dw- ff nana) , naked neck (Dw- ff Nana) , frizzled
(Dw- Ff nana) , frizzled naked neck (Dw- Ff Nana) , dwarf
(dw- ff nana) , dwarf naked neck (dw- ff Nana) , dwarf frizzled
(dw- Ff nana) and dwarf f rizzled naked neck (dw- Ff Nana)
genotypes .
The dw was observed to cause a profound reduction in body
weight , body conformation , egg production and egg weight .
However , the dw reduced feed intake and improved feed
efficiency . The dw also had detrimental effect on several egg
quality traits. Body weight and body conformation measurements were not
affected by the Na , while feed intake was significantly
increased in both dwarf and non-dwarf populations . The
Dw- ff Nana hens were observed to have better egg production
and egg weight . Shell quality traits were found to improve due
to the Na . However , among the dwarf population , the Na had an
adverse effect on feed efficiency. |
format |
Thesis |
qualification_level |
Master's degree |
author |
Hj. Idrus, Zulkifli |
author_facet |
Hj. Idrus, Zulkifli |
author_sort |
Hj. Idrus, Zulkifli |
title |
The Effect Of Sex-Linked Dwarf (Dw), Naked Neck (Na) And Frizzle (F) Genes On Various Traits In Laying Hens Under Tropical Conditions
|
title_short |
The Effect Of Sex-Linked Dwarf (Dw), Naked Neck (Na) And Frizzle (F) Genes On Various Traits In Laying Hens Under Tropical Conditions
|
title_full |
The Effect Of Sex-Linked Dwarf (Dw), Naked Neck (Na) And Frizzle (F) Genes On Various Traits In Laying Hens Under Tropical Conditions
|
title_fullStr |
The Effect Of Sex-Linked Dwarf (Dw), Naked Neck (Na) And Frizzle (F) Genes On Various Traits In Laying Hens Under Tropical Conditions
|
title_full_unstemmed |
The Effect Of Sex-Linked Dwarf (Dw), Naked Neck (Na) And Frizzle (F) Genes On Various Traits In Laying Hens Under Tropical Conditions
|
title_sort |
effect of sex-linked dwarf (dw), naked neck (na) and frizzle (f) genes on various traits in laying hens under tropical conditions |
granting_institution |
Universiti Pertanian Malaysia |
granting_department |
Faculty of Veterinary medicine |
publishDate |
1991 |
url |
http://psasir.upm.edu.my/id/eprint/12294/1/FPV_1991_4_A.pdf |
_version_ |
1747811344325804032 |