Exploration & description/ANOVA or REML?

The Wald statistics also demonstrate the highly significant fixed effects of year of birth, age of ewe (DL and DQ), age at weaning and sex, as shown earlier by least squares analysis of variance.

The table of effects shown alongside demonstrates, for example, that the lambs born in the later years had lower weaning weights compared with those born in the earlier years and, further, that male lambs had an average weaning weight slightly higher by 0.4779 (± 0.1695) kg than females.

 
*** Table of effects for YEAR ***
YEAR 91.00 92.00 93.00 94.00 95.00 96.00
  0.000 -1.566 -1.096 -2.833 -3.228 -2.351
Standard error of differences: Average 0.3373
  Maximum 0.3898
  Minimum 0.2753
Average variance of differences: 0.1151
*** Table of effects for SEX ***
SEX F M
  0.0000 0.4779
Standard error of differences: 0.1695

** Table of effects for AGEWEAN ***
0.07022 Standard error: 0.008856

*** Table of effects for DL ***
2.726 Standard error: 0.3150

*** Table of effects for DQ ***
-0.2689 Standard error: 0.03401

** Table of effects for RAM_BRD ***
RAM_BRD   D       R
            0.0000   -0.4429

Standard error of differences: 0.1728

** Table of effects for EWE_BRD ***
EWE_BRD      D      R
            0.0000 -0.5855

Standard error of differences: 0.2366

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