Comparative studies on performance and physiological responses of Ethiopian indigenous nacked neck (Angete-Melata) chickens and their F1 crosses to long term heat exposure:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Berlin
Logos-Verl.
2000
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Zugl.: Halle, Univ., Diss., 2000 |
| Beschreibung: | VII, 127 S. graph. Darst. : 21 cm |
| ISBN: | 389722576X |
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| 245 | 1 | 0 | |a Comparative studies on performance and physiological responses of Ethiopian indigenous nacked neck (Angete-Melata) chickens and their F1 crosses to long term heat exposure |c by Aberra Melesse |
| 264 | 1 | |a Berlin |b Logos-Verl. |c 2000 | |
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| 943 | 1 | |a oai:aleph.bib-bvb.de:BVB01-009250657 | |
Datensatz im Suchindex
| _version_ | 1820867343401615360 |
|---|---|
| adam_text |
LIST
OF
CONTENTS
NO
CONTENTS
PAGES
LIST
OF
TABLES
IN
THE
TEXT
I
LIST
OF
FIGURES
IN
THE
TEXT
III
LIST
OF
TABLES
IN
THE
APPENDIX
V
LIST
OF
FIGURES
IN
THE
APPENDIX
VI
ABBREVIATIONS
VII
1.
INTRODUCTION
AND
OBJECTIVES
OF
THE
STUDY
1
2.
LITERATURE
REVIEW
4
2.1
POTENTIAL
OF
INDIGENOUS
CHICKEN
FOR
BREEDING
UNDER
TROPICAL
ENVIRONMENT
4
2.2
DEFINITION
OF
STRESS
AND
POTENTIAL
STRESSORS
6
2.3
EFFECTS
OF
HEAT
STRESS
ON
POULTRY
PERFORMANCE
8
2.3.1
FERTILITY
AND
HATCHABILITY
OF
EGGS
8
2.3.2
BODY
WEIGHT
9
2.3.3
FEED
CONSUMPTION
AND
EFFICIENCY
9
2.3.4
EGG
PRODUCTION
10
2.3.5
EGG
WEIGHT
AND
EGG
QUALITY
10
2.4
PHYSIOLOGICAL
RESPONSES
TO
HEAT
STRESS
11
2.4.1.
HORMONAL
RESPONSES
TO HEAT
STRESS
12
2.4.1.1
CORTICOSTERONE
12
2.4.1.2
THYROID
HORMONES
13
2.4.2
RESPONSE
OF
PLASMA
ENZYMES
TO
HEAT
STRESS
14
2.4.2.1
GENERAL
REMARKS
14
2.4.2.2
CREATINE
KINASE
(CK)
14
2.4.2.3
ASPARTATE
AMINOTRANSFERASE
(ASAT)
15
2.4.2.4 LACTATE
DEHYDROGENASE
(LDH)
15
2.4.2.5
ALANINE
AMINOTRANSFERASE
(ALAT)
16
2.4.3
RESPONSE
OF
DIFFERENTIAL
LEUCOCYTE
COUNTS
TO
HEAT
EXPOSURE
16
2.4.4
MOLECULAR
RESPONSES
TO
HEAT
STRESS
(HEAT-SHOCK
PROTEIN
70)
18
3.
MATERIAL
AND
METHODS
20
3.1
EXPERIMENTAL
ANIMALS
20
3.1.1
EXPERIMENT!
20
3.1.2
EXPERIMENT
II
21
3.2
EXPERIMENTAL
TEMPERATURE
21
3.3
ANIMAL
FEEDS
22
3.4 BLOOD
SAMPLING
AND
ASSAYING
PROCEDURES
22
3.4.1
SAMPLING
PROTOCOLS
22
3.4.2
ASSAYING
PROCEDURES
23
3.4.2.1
PLASMA
ENZYMES
23
3.4.2.2
TRIIODOTHYRONINE
(T
3
)
AND
CORTICOSTERONE
23
3.4.2.3
LEUCOCYTE
PROFILES
24
3.4.2.4
LEVEL
OF
HSP70
IN
MONONUCLEAR
BLOOD
CELLS
24
3.5
ASSESSMENT
OF
PERFORMANCE
PARAMETERS
25
3.5.1
TIME
(AGE)
OF
MEASUREMENTS
25
3.5.2
SEXUAL
MATURITY
AND
BODY
WEIGHT
26
3.5.3
EGG
PRODUCTION
26
3.5.4
EGG
QUALITY
PARAMETERS
27
3.5.4.1
SHELL
QUALITY
27
3.5.4.2
ALBUMEN
AND
YOLK
QUALITY
28
3.6
STATISTICAL
ANALYSIS
29
4.
RESULTS
31
4.1
EXPERIMENT
I
31
4.1.1
MONITORING
THE
PEN
TEMPERATURE
IN
EXPERIMENTAL
AND
CONTROL
GROUPS
31
4.1.2
REPRODUCTION
TRAITS
AND
MORTALITY
32
4.1.2.1
AGE
AT
SEXUAL
MATURITY
32
4.1.2.2
BODY
WEIGHT
32
4.1.2.3
MORTALITY
33
4.1.3
EGG
PRODUCTION
TRAITS
AND
FEED
CONSUMPTION
33
4.1.3.1
EGG
PRODUCTION
33
4.1.3.2 EGG
WEIGHT
34
4.1.3.3 EGG
MASS
OUTPUT
35
4.1.3.4
FEED
INTAKE
AND
FEED
EFFICIENCY
35
4.1.4
EGG
QUALITY
PARAMETERS
37
4.1.4.1
EGG
SHELL
QUALITY
37
4.1.4.2
ALBUMEN
AND
YOLK
QUALITY
39
4.1.4.3
CRACKED
AND
SOFT
EGGS
39
4.1.5
ACTIVITY
OF
ENZYMES
AND
TRIIODOTHYRONINE
(T3)
CONCENTRATION
IN
BLOOD
PLASMA
39
4.1.5.1
ENZYME
ACTIVITIES
40
4.1.5.2
T3
CONCENTRATION
IN
PLASMA
42
4.2
EXPERIMENT
II
45
4.2.1
MONITORING
THE
EXPERIMENTAL
TEMPERATURE
45
4.2.2
EGG
FERTILITY
AND
HATCHABILITY
46
4.2.3
REPRODUCTIVE
TRAITS
AND
MORTALITY
47
4.2.3.1
AGE
AT
SEXUAL
MATURITY
47
4.2.3.2
BODY
WEIGHT
47
4.2.3.3
MORTALITY
48
4.2.4 EGG
PRODUCTION
AND
EGG
MASS
OUTPUT
49
4.2.4.1
EGG
PRODUCTION
AND
EGG
WEIGHT
49
4.2.4.2
EGG
MASS
OUTPUT
50
4.2.5
FEED
INTAKE
AND
FEED
EFFICIENCY
52
4.2.6
PERFORMANCE
COMPARISON
BETWEEN
NATIVE
NA
AND
FI
CROSSES
53
4.2.7
EGG
QUALITY
PARAMETERS
54
4.2.7.1
EGG
SHELL
QUALITY
55
4.2.7.2
ALBUMEN
AND
YOLK
QUALITY
58
4.2.8
PERFORMANCE
COMPARISON
BETWEEN
NAXLW
AND
NAXNH
CROSSES
58
4.2.8
PHYSIOLOGICAL
RESPONSES
TO
CHRONIC
HEAT
EXPOSURE
59
4.2.8.1
ENZYME
ACTIVITIES
IN
BLOOD
PLASMA
59
4.2.8.2
LEVEL
OF
HORMONES
IN
BLOOD
PLASMA
64
4.2.8.2.1
TRIIODOTHYRONINE
(T3)
64
4.2.8.2.2
CORTICOSTERONE
66
4.2.8.3
RESPONSE
OF
LEUCOCYTE
COUNTS
TO
CHRONIC
THERMAL
STRESS
67
4.2.8.4
LEVEL
OF
HEAT-SHOCK
PROTEIN
70
(HSP70)
IN
MONONUCLEAR
BLOOD
CELLS
69
4.2.9
CORRELATION
ANALYSIS
71
4.2.9.1
CORRELATION
OF
PERFORMANCE
AND
EGG
QUALITY
TRAITS
71
4.2.9.2
CORRELATION
OF
PERFORMANCE
AND
PHYSIOLOGICAL
PARAMETERS
72
5.
DISCUSSION
73
5.1
AGE
AT
SEXUAL
MATURITY
73
5.2
BODY
WEIGHT
74
5.3
EGG
PRODUCTION
AND
EGG
WEIGHT
75
5.4
FEED
INTAKE
AND
FEED
EFFICIENCY
77
5.5
EGG
QUALITY
78
5.5.1
SHELL
QUALITY
78
5.5.2
ALBUMEN
AND
YOLK
QUALITY
80
5.6
EFFECT
OF
CROSSBREEDING
ON
PERFORMANCE
OF
FI
CROSSES
IN
WARM
ENVIRONMENT
80
5.6.1
PERFORMANCE
COMPARISON
BETWEEN
FI
CROSSES
AND
PURE
LINES
80
5.6.2
PERFORMANCE
COMPARISON
BETWEEN
FI
CROSSES
81
5.7
LEVEL
OF
HORMONES
IN
BLOOD
PLASMA
81
5.7.1
TRIIODOTHYRONINE
(T
3
)
81
5.7.2
CORTICOSTERONE
83
5.8
ACTIVITY
OF
PLASMA
ENZYMES
84
5.9
DIFFERENTIAL
LEUCOCYTE
COUNTS
86
5.10
LEVEL
OF
HEAT-SHOCK
PROTEIN
70
(HSP70)
88
5.11
CORRELATION
ANALYSIS
90
5.11.1
CORRELATION
OF
PERFORMANCE
AND
EGG
QUALITY
TRAITS
90
5.11.2
CORRELATION
OF
PERFORMANCE
AND
PHYSIOLOGICAL
PARAMETERS
91
6.
CONCLUSIONS
92
7.
SUMMARY
94
8.
ZUSAMMENFASSUNG
96
9.
REFERENCES
99
10.
APPENDIX
115
10.1
TABLES
115
10.2
FIGURES
122 |
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| author | Melesse, Aberra 1964- |
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| genre_facet | Hochschulschrift |
| geographic | Äthiopien (DE-588)4000639-6 gnd |
| geographic_facet | Äthiopien |
| id | DE-604.BV013546928 |
| illustrated | Illustrated |
| indexdate | 2025-01-10T13:06:58Z |
| institution | BVB |
| isbn | 389722576X |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-009250657 |
| oclc_num | 50428181 |
| open_access_boolean | |
| owner | DE-703 |
| owner_facet | DE-703 |
| physical | VII, 127 S. graph. Darst. : 21 cm |
| publishDate | 2000 |
| publishDateSearch | 2000 |
| publishDateSort | 2000 |
| publisher | Logos-Verl. |
| record_format | marc |
| spelling | Melesse, Aberra 1964- Verfasser (DE-588)122590155 aut Comparative studies on performance and physiological responses of Ethiopian indigenous nacked neck (Angete-Melata) chickens and their F1 crosses to long term heat exposure by Aberra Melesse Berlin Logos-Verl. 2000 VII, 127 S. graph. Darst. : 21 cm txt rdacontent n rdamedia nc rdacarrier Zugl.: Halle, Univ., Diss., 2000 Legeleistung (DE-588)4127467-2 gnd rswk-swf Legehenne (DE-588)4167124-7 gnd rswk-swf Tierphysiologie (DE-588)4060126-2 gnd rswk-swf Hitzestress (DE-588)4391224-2 gnd rswk-swf Äthiopien (DE-588)4000639-6 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Äthiopien (DE-588)4000639-6 g Legehenne (DE-588)4167124-7 s Legeleistung (DE-588)4127467-2 s Hitzestress (DE-588)4391224-2 s DE-604 Tierphysiologie (DE-588)4060126-2 s DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009250657&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Melesse, Aberra 1964- Comparative studies on performance and physiological responses of Ethiopian indigenous nacked neck (Angete-Melata) chickens and their F1 crosses to long term heat exposure Legeleistung (DE-588)4127467-2 gnd Legehenne (DE-588)4167124-7 gnd Tierphysiologie (DE-588)4060126-2 gnd Hitzestress (DE-588)4391224-2 gnd |
| subject_GND | (DE-588)4127467-2 (DE-588)4167124-7 (DE-588)4060126-2 (DE-588)4391224-2 (DE-588)4000639-6 (DE-588)4113937-9 |
| title | Comparative studies on performance and physiological responses of Ethiopian indigenous nacked neck (Angete-Melata) chickens and their F1 crosses to long term heat exposure |
| title_auth | Comparative studies on performance and physiological responses of Ethiopian indigenous nacked neck (Angete-Melata) chickens and their F1 crosses to long term heat exposure |
| title_exact_search | Comparative studies on performance and physiological responses of Ethiopian indigenous nacked neck (Angete-Melata) chickens and their F1 crosses to long term heat exposure |
| title_full | Comparative studies on performance and physiological responses of Ethiopian indigenous nacked neck (Angete-Melata) chickens and their F1 crosses to long term heat exposure by Aberra Melesse |
| title_fullStr | Comparative studies on performance and physiological responses of Ethiopian indigenous nacked neck (Angete-Melata) chickens and their F1 crosses to long term heat exposure by Aberra Melesse |
| title_full_unstemmed | Comparative studies on performance and physiological responses of Ethiopian indigenous nacked neck (Angete-Melata) chickens and their F1 crosses to long term heat exposure by Aberra Melesse |
| title_short | Comparative studies on performance and physiological responses of Ethiopian indigenous nacked neck (Angete-Melata) chickens and their F1 crosses to long term heat exposure |
| title_sort | comparative studies on performance and physiological responses of ethiopian indigenous nacked neck angete melata chickens and their f1 crosses to long term heat exposure |
| topic | Legeleistung (DE-588)4127467-2 gnd Legehenne (DE-588)4167124-7 gnd Tierphysiologie (DE-588)4060126-2 gnd Hitzestress (DE-588)4391224-2 gnd |
| topic_facet | Legeleistung Legehenne Tierphysiologie Hitzestress Äthiopien Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009250657&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT melesseaberra comparativestudiesonperformanceandphysiologicalresponsesofethiopianindigenousnackedneckangetemelatachickensandtheirf1crossestolongtermheatexposure |