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Table 3 Least-squares (LS) means (kg) and adjustment factors for effects of birth-rearing type, dam age class, and their interaction on lamb weaning weights of single and twin lambs

From: Effects of birth-rearing type on weaning weights in meat sheep are systematically associated with differences in mean performance among flocks

Data set Dam age class LS means for birth-rearing type Single lamb adjustment factor
11 22 Average Additive, kg Multiplicative
Core 2 31.4 ± 0.2 26.3 ± 0.1 28.8 ± 0.1 −5.1 0.84
  3 to 6 32.6 ± 0.2 28.1 ± 0.1 30.4 ± 0.1 −4.5 0.86
Yearlinga 1 29.1 ± 0.2 24.1 ± 0.2 26.6 ± 0.2 −4.9 0.83
  3 to 6 32.9 ± 0.2 28.5 ± 0.2 30.7 ± 0.2 −4.4 0.87
Aged damsb 3 to 6 29.8 ± 0.2 25.4 ± 0.2 27.7 ± 0.2 −4.5 0.85
  >6 28.8 ± 0.3 24.1 ± 0.2 26.5 ± 0.2 −4.7 0.84
  1. aIncludes flocks from the core dataset that also have at least 50 records on yearling dams
  2. bincludes flocks from the core dataset that also have at least 50 records on > 6-year-old dams