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Relationship between part egg production records body weight and egg weight in iwm strain of white leghorn breed






Indian Journal of Animal Sciences 58(3): 361-365

Relationship between part egg production records body weight and egg weight in iwm strain of white leghorn breed

Data on 517 survival pullets from 41 sires of strain IWM were examined. Heritability estimates for 21-40 weeks (P1) part record of (0.29 .+-. 0.12) and for 21-60 weeks (F) full record (0.22 .+-. 0.12) were high. High genetic correlations were estimated (0.91 .+-. 0.22) between P1 and F records, but full record was lowly correlated with 31-50 weeks part period. Body weight and egg weight at 40 and 60 weeks were negatively correlated with different part records egg production. The relative efficiency for P1 record was 2.078 per unit time to improve full record.


Accession: 006297994



Related references

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