Estimating genetics values for milk production in the tropics
Variance components and predicted sire values were estimated using 304-d projected and unprojected milk records of varying lengths. Heritabilities for milk by Henderson's method 1 were five to six times larger than estimated from method 3 due to sire by herd confounding. Predicted sire values were between + 400 kg and - 400 kg. Rankings of sires with at least 5 progeny were considerably influenced by record classification, especially for sires with highest predicted values. There was less influence on rankings when at least 10 progeny per sire were used while the range in predicted sire values was larger using first lactation records only
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | biblioteca |
| Published: |
1986
|
| Subjects: | GANADO DE LECHE, GENETICA, EVALUACION DE SEMENTALES, HEREDABILIDAD, JAMAICA, |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
KOHA-OAI-BVE:44314 |
|---|---|
| record_format |
koha |
| spelling |
KOHA-OAI-BVE:443142020-02-03T21:07:49ZEstimating genetics values for milk production in the tropics 39758 Abubakar, B.Y. 92365 McDowell, R.E. 130992 Wellington, K.E. 127307 Van Vleck, L.D. 1986Variance components and predicted sire values were estimated using 304-d projected and unprojected milk records of varying lengths. Heritabilities for milk by Henderson's method 1 were five to six times larger than estimated from method 3 due to sire by herd confounding. Predicted sire values were between + 400 kg and - 400 kg. Rankings of sires with at least 5 progeny were considerably influenced by record classification, especially for sires with highest predicted values. There was less influence on rankings when at least 10 progeny per sire were used while the range in predicted sire values was larger using first lactation records onlyVariance components and predicted sire values were estimated using 304-d projected and unprojected milk records of varying lengths. Heritabilities for milk by Henderson's method 1 were five to six times larger than estimated from method 3 due to sire by herd confounding. Predicted sire values were between + 400 kg and - 400 kg. Rankings of sires with at least 5 progeny were considerably influenced by record classification, especially for sires with highest predicted values. There was less influence on rankings when at least 10 progeny per sire were used while the range in predicted sire values was larger using first lactation records onlyGANADO DE LECHEGENETICAEVALUACION DE SEMENTALESHEREDABILIDADJAMAICAJournal of Animal Science (EUA) |
| institution |
IICA |
| collection |
Koha |
| country |
Costa Rica |
| countrycode |
CR |
| component |
Bibliográfico |
| access |
En linea |
| databasecode |
cat-sibiica |
| tag |
biblioteca |
| region |
America Central |
| libraryname |
Sistema de Bibliotecas IICA/CATIE |
| topic |
GANADO DE LECHE GENETICA EVALUACION DE SEMENTALES HEREDABILIDAD JAMAICA GANADO DE LECHE GENETICA EVALUACION DE SEMENTALES HEREDABILIDAD JAMAICA |
| spellingShingle |
GANADO DE LECHE GENETICA EVALUACION DE SEMENTALES HEREDABILIDAD JAMAICA GANADO DE LECHE GENETICA EVALUACION DE SEMENTALES HEREDABILIDAD JAMAICA 39758 Abubakar, B.Y. 92365 McDowell, R.E. 130992 Wellington, K.E. 127307 Van Vleck, L.D. Estimating genetics values for milk production in the tropics |
| description |
Variance components and predicted sire values were estimated using 304-d projected and unprojected milk records of varying lengths. Heritabilities for milk by Henderson's method 1 were five to six times larger than estimated from method 3 due to sire by herd confounding. Predicted sire values were between + 400 kg and - 400 kg. Rankings of sires with at least 5 progeny were considerably influenced by record classification, especially for sires with highest predicted values. There was less influence on rankings when at least 10 progeny per sire were used while the range in predicted sire values was larger using first lactation records only |
| format |
|
| topic_facet |
GANADO DE LECHE GENETICA EVALUACION DE SEMENTALES HEREDABILIDAD JAMAICA |
| author |
39758 Abubakar, B.Y. 92365 McDowell, R.E. 130992 Wellington, K.E. 127307 Van Vleck, L.D. |
| author_facet |
39758 Abubakar, B.Y. 92365 McDowell, R.E. 130992 Wellington, K.E. 127307 Van Vleck, L.D. |
| author_sort |
39758 Abubakar, B.Y. |
| title |
Estimating genetics values for milk production in the tropics |
| title_short |
Estimating genetics values for milk production in the tropics |
| title_full |
Estimating genetics values for milk production in the tropics |
| title_fullStr |
Estimating genetics values for milk production in the tropics |
| title_full_unstemmed |
Estimating genetics values for milk production in the tropics |
| title_sort |
estimating genetics values for milk production in the tropics |
| publishDate |
1986 |
| work_keys_str_mv |
AT 39758abubakarby estimatinggeneticsvaluesformilkproductioninthetropics AT 92365mcdowellre estimatinggeneticsvaluesformilkproductioninthetropics AT 130992wellingtonke estimatinggeneticsvaluesformilkproductioninthetropics AT 127307vanvleckld estimatinggeneticsvaluesformilkproductioninthetropics |
| _version_ |
1756053831484964864 |