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Egyptian Poultry Science Journal
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Volume Volume 45 (2025)
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Volume Volume 42 (2022)
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Volume Volume 41 (2021)
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Ramadan, G. (2022). PRODUCTIVE PERFORMANCES OF TANTA G-2 GENOTYPE SELECTED FOR HIGH BODY WEIGHT. Egyptian Poultry Science Journal, 42(1), 1-16. doi: 10.21608/epsj.2022.225207
Gomaa Said Ramadan. "PRODUCTIVE PERFORMANCES OF TANTA G-2 GENOTYPE SELECTED FOR HIGH BODY WEIGHT". Egyptian Poultry Science Journal, 42, 1, 2022, 1-16. doi: 10.21608/epsj.2022.225207
Ramadan, G. (2022). 'PRODUCTIVE PERFORMANCES OF TANTA G-2 GENOTYPE SELECTED FOR HIGH BODY WEIGHT', Egyptian Poultry Science Journal, 42(1), pp. 1-16. doi: 10.21608/epsj.2022.225207
Ramadan, G. PRODUCTIVE PERFORMANCES OF TANTA G-2 GENOTYPE SELECTED FOR HIGH BODY WEIGHT. Egyptian Poultry Science Journal, 2022; 42(1): 1-16. doi: 10.21608/epsj.2022.225207

PRODUCTIVE PERFORMANCES OF TANTA G-2 GENOTYPE SELECTED FOR HIGH BODY WEIGHT

Article 1, Volume 42, Issue 1, March 2022, Page 1-16  XML PDF (546.16 K)
Document Type: Original Article
DOI: 10.21608/epsj.2022.225207
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Author
Gomaa Said Ramadanorcid
Animal Production Department, Agriculture and Biology Research Division, National Research Centre
Abstract
This study was conducted to investigate the progress in productive and Reproductive performances of two line indigenous chicken genotypes namely Tanta G-2and Mamourah line (RBC) being crossing and selected since 2015 three generations data on body weight  from hatch until 8 weeks also  age at sexual maturity (ASM), egg production (EP) from 36-42 weeks of age and  first egg weight (EW)  and body weight at sexual maturity (BWSM) The average LBW of Tanta G-2and RBC lines by generation at 8 weeks of age were 907.86 g vs. 558.56g (G1), 1088.12 g vs. 554.92 g (G2), 1175.93 g vs. 551.28 g (G3), respectively, with significant differences for both lines This value was 3267gm for the  Tanta G-2and 1525 gm for the RBC line , 3302 gm for the Tanta G-2and 1526gm for RBC line in generation 2 while This value was 3337gm for the  Tanta G-2and 1527gm for the RBC line in generation 3. Age at sexual maturity of the Tanta G-2line was 182 days compared to 155 days for the RBC line in the first three generation that egg weight of the first egg of the Tanta G-2 line (51.66gm) was higher than that of the RBC line (34.65gm).The results indicate that genetic improvement programs has made significant progress through increasing the mean of economic traits selected in indigenous chickens Egypt.
Keywords
Tanta G-2; Mamourah; body weight; BWSM; ASM; growth curve
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