The analysis showed that there is a highly significant linear relationship between body weight and their age of SH ewes. so the linear regression equation between age and body weight can be utilized to construct the body weight correction formula by substituting x = 60 into y = 0.151 x + 8.739 to obtain y = 17.799 , by which it can be deduced that the body weight correction formula for SH ewes reaching the age of 60 days is as follows: W calibration 60 = W measured × 17.799 / [ 17.799 + 0.151 × ( T measured − 60 ) ] .
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ASReml-based estimation of early genetic parameters in hybrid mutton sheep populations.
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