Genetic evaluation of the performance of Holstein Friesian cattle on large scale dairy farms in Malawi:
Saved in:
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Göttingen
Cuvillier
2000
|
| Edition: | 1. Aufl. |
| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Item Description: | Zugl.: Göttingen, Univ., Diss., 2000 |
| Physical Description: | VII, 114 S. graph. Darst. |
| ISBN: | 3897128527 |
Staff View
MARC
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| 100 | 1 | |a Chagunda, Mizeck |d 1968- |e Verfasser |0 (DE-588)122100492 |4 aut | |
| 245 | 1 | 0 | |a Genetic evaluation of the performance of Holstein Friesian cattle on large scale dairy farms in Malawi |c Mizeck Gift Gibson Chagunda |
| 250 | |a 1. Aufl. | ||
| 264 | 1 | |a Göttingen |b Cuvillier |c 2000 | |
| 300 | |a VII, 114 S. |b graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 500 | |a Zugl.: Göttingen, Univ., Diss., 2000 | ||
| 650 | 4 | |a Dairy cattle |x Breeding |z Malawi | |
| 650 | 4 | |a Holstein-Friesian cattle |z Malawi |x Genetics | |
| 650 | 4 | |a Milk yield | |
| 650 | 0 | 7 | |a Milchleistung |0 (DE-588)4169919-1 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Holstein-Friesian-Rind |0 (DE-588)4160493-3 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Genotyp |0 (DE-588)4601328-3 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Landwirtschaftlicher Großbetrieb |0 (DE-588)4166683-5 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Rinderhaltung |0 (DE-588)4076737-1 |2 gnd |9 rswk-swf |
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| 689 | 0 | 3 | |a Holstein-Friesian-Rind |0 (DE-588)4160493-3 |D s |
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| 943 | 1 | |a oai:aleph.bib-bvb.de:BVB01-009007200 | |
Record in the Search Index
| _version_ | 1807683314156306432 |
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| adam_text |
TABLE
OF
CONTENTS
TABLE
OF
CONTENTS
1.0
GENERAL
INTRODUCTION
.
1
2.0
LITERATURE
REVIEW
.
4
2.1
ENVIRONMENTAL
FACTORS
AFFECTING
MILK
PRODUCTION
.
4
2.1.1
AGE
AT
FIRST
CALVING
.
4
2.1.
2
EFFECT
OF
HERD,
YEAR,
AND
SEASON
OF
CALVING
.
4
2.2
GENETIC
PARAMETERS
.
6
2.
2.1.
ESTIMATING
THE
ADDITIVE
VARIANCE
COMPONENTS
.
6
2.
2.1.
1
REGRESSION
ANALYSIS
AND
ANALYSIS
OF
VARIANCE
.
6
2.2.1.
2
MAXIMUM
LIKELIHOOD
(ML)
.
7
2.
2.1.
3
RESTRICTED
MAXIMUM
LIKELIHOOD
(REML)
.
7
2.
2.
2
HERITABILITY
ESTIMATES
FOR
SELECTED
TRAITS
IN
DAIRY
CATTLE
.
10
2.
2.
3
BREEDING
VALUE
.
13
2.
2.
4
ESTIMATES
OF
ADDITIVE
GENETIC
CORRELATIONS
BETWEEN
SELECTED
DAIRY
CATTLE
TRAITS
.
14
2.
3
GENOTYPE
BY
ENVIRONMENT
INTERACTION
.
15
2.
3.1
METHODS
FOR
ESTIMATING
GENOTYPE
BY
ENVIRONMENT
INTERACTION
.
17
2.
3.
2
SOME
STUDIES
ON
GENOTYPE
BY
ENVIRONMENT
INTERACTION
.
20
2.4
BREEDING
STRATEGY
.
22
2.
4.1
BREEDING
OBJECTIVES
.
22
2.
4.
2
SELECTION
INDEX
.
23
2.
4.
3
CONSTRUCTION
OF
THE
INDEX
.
25
2.4.4
RESPONSE
TO
SELECTION
.
27
3.
0
STUDY
AREA
AND
HERDS
.
29
3.1
MALAWI
-
AN
OVERVIEW
.
29
3.2
THE
FARMS
.
29
3.
3
HERD
MANAGEMENT
.
30
3.4
DATA
.
31
4.0
STUDIES
ON
GOODNESS-OF-FIT
AND
THE
EFFECT
OF
RECORDING
INTENSITY
ON
LACTATION
MILK
YIELD
ESTIMATES
.
32
4.1
GOODNESS-OF-FIT
.
32
4,1.1
INTRODUCTION
.
32
4.1.2
MATERIALS
AND
METHODS
.
33
4.1.
2.1
DATA
.
33
4.
1.2.
2
METHODS
.
33
4.1.
3
RESULTS
AND
DISCUSSION
.
36
4.1.
4 CONCLUSION
.
40
TABLE
OF
CONTENTS
4.
2.
EFFECTS
OF
RECORDING
INTENSITY
ON
LACTATION
MILK
YIELD
ESTIMATES
.
41
4.
2.
1
INTRODUCTION
.
41
4.
2.
2
MATERIAL
AND
METHODS
.
41
4.
2.
3
RESULTS
AND
DISCUSSION
.
42
4.
2.
4
CONCLUSION
.
44
5.0
GENOTYPE
BY
ENVIRONMENT
INTERACTION
.
45
5.1
INTRODUCTION
.
45
5.2
MATERIALS
AND
METHODS
.
46
5.
2.
1
DATA
.
46
5.
2.
2
METHODS
.
50
5.
2.
2.
1
ANALYSIS
OF
VARIANCE
.
50
5.
2.
2.
2
VARIANCE
COMPONENTS
AND
HERITABILITY
.
51
5.
2.
2.
3
GENETIC
CORRELATION
ESTIMATE
.
52
5.
3
RESULTS
AND
DISCUSSION
.
53
5.
3.
1
PERFORMANCE
OF
HOLSTEIN
FRIESIAN
COWS
ON
LARGE
SCALE
FARMS
IN
MALAWI.
53
5.
3.
2
FIXED
FACTORS
AFFECTING
MILK
YIELD
ON
LARGE
SCALE
DAIRY
FARMS
IN
MALAWI
.
54
5.
3.
2.1
EFFECT
OF
SEASON
OF
CALVING
.
54
5.
3.
2.
2
EFFECT
OF
AGE
AT
FIRST
CALVING
.
55
5.
3.
2.
3
EFFECT
OF
YEAR
OF
CALVING
.
55
5.
3.
2.
4
THE
EFFECT
OF
HERD
.
61
5.
3.
3.
VARIANCE
COMPONENT
ESTIMATES
AND
HERITABILITY
VALUES
.
62
5.
3.
4
GENETIC
AND
PHENOTYPIC
CORRELATIONS
.
63
5.
3.
5
SIRE
BREEDING
VALUES
.
64
5.
3.
6
DETERMINING
GENOTYPE
BY
ENVIRONMENT
INTERACTION
.
65
5.
3.
7
SIRE
RANKING
.
65
5.
3.
8
ANNUAL
GENETIC
AVERAGES
.
67
5.4
IMPLICATION
OF
RESULTS
.
68
6.0
SELECTION
CRITERIA
.
70
6.1
1NTRODUCTION
.
70
6.2
MATERIALS
AND
METHODS
.
70
6.
2.
1
MATERIALS
.
70
6.
2.
2
METHODS
.
72
6.
2.
2.1
DEVELOPING
BREEDING
SCENARIOS
.
72
6.
2.
2.
2
SELECTION
INDEX
CONSTRUCTION
.
75
6.
2.
2.
3
ECONOMIC
WEIGHTS
.
76
6.3
RESULTS
AND
DISCUSSION
.
77
6.
3.
1
ECONOMIC
WEIGHTS
.
77
6.
3.
2
RESPONSE
TO
SELECTION
.
78
6.
3.
2.1
CURRENTLY
APPLIED
SELECTION
CRITERIA
VERSUS
ALTERNATIVES
.
78
6.
3.
2.
2
PHENOTYPIC
AND
GENETIC
PARAMETER
CHANGES
WITHIN
ALTERNATIVE
SELECTION
CRITERIA
.
80
II
TABLE
OF
CONTENTS
6.4
IMPLICATION
OF
RESULTS
.
82
7.0
GENERAL
DISCUSSION
.
83
7.1
TOWARDS
A
NATIONAL
SELECTION
AND
BREEDING
PROGRAMME
.
83
7.
2
IMPLICATIONS
TO
THE
SMALLHOLDER
DAIRY
SUB-SECTOR.
.
88
8.0
SUMMARY
.
91
9.0
ZUSAMMENFASSUNG
.
94
10.0
BIBLIOGRAPHY
.
97
11.0
APPENDIX
.
111
III |
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| genre_facet | Hochschulschrift |
| geographic | Malawi (DE-588)4074495-4 gnd |
| geographic_facet | Malawi |
| id | DE-604.BV013218578 |
| illustrated | Illustrated |
| indexdate | 2024-08-18T00:32:28Z |
| institution | BVB |
| isbn | 3897128527 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-009007200 |
| oclc_num | 48478575 |
| open_access_boolean | |
| owner | DE-703 |
| owner_facet | DE-703 |
| physical | VII, 114 S. graph. Darst. |
| publishDate | 2000 |
| publishDateSearch | 2000 |
| publishDateSort | 2000 |
| publisher | Cuvillier |
| record_format | marc |
| spelling | Chagunda, Mizeck 1968- Verfasser (DE-588)122100492 aut Genetic evaluation of the performance of Holstein Friesian cattle on large scale dairy farms in Malawi Mizeck Gift Gibson Chagunda 1. Aufl. Göttingen Cuvillier 2000 VII, 114 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Zugl.: Göttingen, Univ., Diss., 2000 Dairy cattle Breeding Malawi Holstein-Friesian cattle Malawi Genetics Milk yield Milchleistung (DE-588)4169919-1 gnd rswk-swf Holstein-Friesian-Rind (DE-588)4160493-3 gnd rswk-swf Genotyp (DE-588)4601328-3 gnd rswk-swf Landwirtschaftlicher Großbetrieb (DE-588)4166683-5 gnd rswk-swf Rinderhaltung (DE-588)4076737-1 gnd rswk-swf Malawi (DE-588)4074495-4 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Malawi (DE-588)4074495-4 g Landwirtschaftlicher Großbetrieb (DE-588)4166683-5 s Rinderhaltung (DE-588)4076737-1 s Holstein-Friesian-Rind (DE-588)4160493-3 s Milchleistung (DE-588)4169919-1 s Genotyp (DE-588)4601328-3 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009007200&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Chagunda, Mizeck 1968- Genetic evaluation of the performance of Holstein Friesian cattle on large scale dairy farms in Malawi Dairy cattle Breeding Malawi Holstein-Friesian cattle Malawi Genetics Milk yield Milchleistung (DE-588)4169919-1 gnd Holstein-Friesian-Rind (DE-588)4160493-3 gnd Genotyp (DE-588)4601328-3 gnd Landwirtschaftlicher Großbetrieb (DE-588)4166683-5 gnd Rinderhaltung (DE-588)4076737-1 gnd |
| subject_GND | (DE-588)4169919-1 (DE-588)4160493-3 (DE-588)4601328-3 (DE-588)4166683-5 (DE-588)4076737-1 (DE-588)4074495-4 (DE-588)4113937-9 |
| title | Genetic evaluation of the performance of Holstein Friesian cattle on large scale dairy farms in Malawi |
| title_auth | Genetic evaluation of the performance of Holstein Friesian cattle on large scale dairy farms in Malawi |
| title_exact_search | Genetic evaluation of the performance of Holstein Friesian cattle on large scale dairy farms in Malawi |
| title_full | Genetic evaluation of the performance of Holstein Friesian cattle on large scale dairy farms in Malawi Mizeck Gift Gibson Chagunda |
| title_fullStr | Genetic evaluation of the performance of Holstein Friesian cattle on large scale dairy farms in Malawi Mizeck Gift Gibson Chagunda |
| title_full_unstemmed | Genetic evaluation of the performance of Holstein Friesian cattle on large scale dairy farms in Malawi Mizeck Gift Gibson Chagunda |
| title_short | Genetic evaluation of the performance of Holstein Friesian cattle on large scale dairy farms in Malawi |
| title_sort | genetic evaluation of the performance of holstein friesian cattle on large scale dairy farms in malawi |
| topic | Dairy cattle Breeding Malawi Holstein-Friesian cattle Malawi Genetics Milk yield Milchleistung (DE-588)4169919-1 gnd Holstein-Friesian-Rind (DE-588)4160493-3 gnd Genotyp (DE-588)4601328-3 gnd Landwirtschaftlicher Großbetrieb (DE-588)4166683-5 gnd Rinderhaltung (DE-588)4076737-1 gnd |
| topic_facet | Dairy cattle Breeding Malawi Holstein-Friesian cattle Malawi Genetics Milk yield Milchleistung Holstein-Friesian-Rind Genotyp Landwirtschaftlicher Großbetrieb Rinderhaltung Malawi Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009007200&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT chagundamizeck geneticevaluationoftheperformanceofholsteinfriesiancattleonlargescaledairyfarmsinmalawi |