. 2013 Sep;26(9):1237–1246. doi: 10.5713/ajas.2013.13040

Table 8.

Spearman’s Rank Correlation coefficients of sires estimated breeding values for lactation pattern and milk production traits and lactation curve function parameters

Traits	Trait¹
Traits	IY	PY	YD	DP	LL	ln(a)	c
LY	0.97^*	0.99^*	0.99^*	−0.33^*	0.95^*	0.96^*	0.77^*
IY		0.98^*	0.96^*	−0.44^*	0.93^*	0.94^*	0.73^*
PY			0.99^*	−0.34^*	0.95^*	0.97^*	0.76^*
YD				−0.30^*	0.96^*	0.95^*	0.81^*
DP					−0.26^*	−0.37^*	0.07ns
LL						0.92^*	0.82^*
ln(a)							0.67^*

LY = Lactation milk yield; IY = Initial milk yield; PY = Peak milk yield; YD = Average yield per d; DP = Days to peak; LL = Lactation length; ln(a) and c = parameters of the MIG function.

p<0.001, ns = Not significant.