Vol. 11, Special Issue 12 (2022)

Author(s):
RR Patel, JH Patel, FP Savaliya, AB Patel and NJ Bhagora

Abstract:
The present study was planned to evaluate the various economic traits of two strains of white leghorn chicken. The experiment was carried out in 12^th and 22^nd generations of Anand Bantamized White Leghorn (ABWLH) and Anand Synthetic White Leghorn (ASWLH) strains of White Leghorn, respectively. Various traits like body weight (BW) at day old, 4, 8, 12, 16, 20, 28 and 40 weeks of age, age at first egg (AFE), total egg number produced upto 40 weeks of age (TEN40), egg weight (EW) at 24, 28, 32, 36 and 40 weeks of age and total egg mass produced upto 40 weeks of age (TEM40) were measured and utilized for estimation of least square mean and standard error. The ASWLH strain has significantly (p<0.05) higher body weight at day old, 12, 16, 20 and 28 weeks of age compared to the ABWLH strain. The least square means and standard error of AFE (days) was 135.81±0.68 and 141.77±0.91 in ABWLH and ASWLH strains, respectively. Age at first egg of ASWLH strain was significantly (p<0.05) higher than ABWLH strain. The least square mean and standard error for TEN40 was 121.98±0.88 in ABWLH and 110.30±0.95 in ASWLH strain. The strain ABWLH has produced significantly (p<0.05) higher egg number produced upto 40 weeks of age than ASWLH strain. The mean egg weight recorded at all ages was significantly (p<0.05) higher in ASWLH strain as compare to ABWLH strain. The least square mean and standard error for TEM40 was 5903.76±41.48 in ABWLH and 5822.92±46.84 in ASWLH strain. The egg mass produced upto 40 weeks of age by both strains differed non-significantly. This results due to the selection for the negatively correlated traits in different strains.