Development of resilience indicator traits based on daily step count data for dairy cattle breeding

Table 3 Estimates (SE) of genetic parameters from the univariate analyses of the resilience indicators based on daily step count

Resilience indicator^a	\({\sigma }_{a}^{2}\)	\({\sigma }_{pe}^{2}\)	\({\sigma }_{e}^{2}\)	\(r\)	\({h}^{2}\)
Mean complete lactation	223,780 (16,406)	372,050 (8596)	130,859 (2287)	0.74 (0.0060)	0.45 (0.027)
Mean early lactation	261,591 (31,631)	468,060 (18,124)	503,072 (11,624)	0.48 (0.013)	0.27 (0.030)
Mean later lactation	204,592 (16,097)	349,870 (8366)	128,566 (2396)	0.73 (0.0060)	0.43 (0.029)
Mean prepartum	221,480 (34,552)	385,560 (20,767)	602,422 (16,203)	0.39 (0.017)	0.22 (0.033)
Mean negative residuals	4578.21 (682.30)	11,302 (439.26)	19,678.1 (338.64)	0.37 (0.011)	0.15 (0.021)
LnVar_steps	0.050 (0.0078)	0.13 (0.0051)	0.24 (0.0041)	0.35 (0.012)	0.14 (0.020)
r_{auto_steps}	0.00091 (0.00025)	0.0026 (0.00030)	0.022 (0.00036)	0.11 (0.012)	0.037 (0.010)
Number of step count drops	0.005 (0.002)	0.012 (0.0050)	0.37 (0.0060)	0.033 (0.012)	0.012 (0.006)
Mean residuals during step count drops	5205.14 (1317.76)	18,390 (1367.90)	84,593.5 (1449.51)	0.18 (0.013)	0.051 (0.013)

\({\sigma }_{a}^{2}\) = additive genetic variance, \({\sigma }_{pe}^{2}\) = permanent environmental variance, \({\sigma }_{e}^{2}\) = error variance, \(r\)=repeatability, \({h}^{2}\)=heritability
^aLnVar_steps = natural log-transformed variance of step residuals, r_{auto_steps} = lag-1 autocorrelation of step residuals

ISSN: 1297-9686