Irish Veterinary Journal

Table 1 Genetic correlations between various health traits and 305-day milk yield in dairy cattle

From: Genetics of animal health and disease in cattle

SCC¹	Mastitis	Lameness	Milk Fever	Cystic ovaries	Metritis	Ketosis	RFM²	DA³	Country	Reference
0.06 to 0.82									Multiple	[9]⁴
-0.97 to 0.48									Multiple	[9]⁵
	0.21 (0.06)	0.29 (0.11)	0.19 (0.06)						UK	[11]
	0.09	0.02		0.10	-0.05	0.12			US	[12]⁶
	0.15	0.24		0.23	0.02		-0.28		Canada	[14]
			0.27 (0.17)				0.26 (0.23)		US	[27]
	0.37			-0.14					Canada	[28]
		0.27⁷	-0.67	-0.06		0.77		-0.04	Canada	[28]
	0.35 (0.10)		0.27 (0.12)	0.70 (0.15)					UK	[29]
				0.34 (0.11)					Netherlands	[32]
				0.42 (0.08)	0.68 (0.23)				Finland	[33]
0.10 (0.08)	0.46 (0.09)								Finland	[56]
-0.11 to 0.00 (0.10 to 0.11)	0.35 to 0.61 (0.10 to 0.11)								Finland	[56]
0.15 (0.06)	0.45 (0.09)								France	[57]
0.198 (0.110)		0.056 to 0.34 (0.12 to 0.15)⁷							Germany	[58]
	0.51					0.65			Norway	[59]
	0.29 (0.08)								Germany	[60]
			-0.49						Norway	[61]

¹Somatic cell count; ²Retained foetal membranes; ²Displaced abomasum; ³Based on nadir calcium levels around parturition; ⁴Based on a review of 7 scientific papers; ⁵Based on a review of 9 scientific papers; ⁶Estimates based on product moment correlations between estimated breeding values^{; 7}Lameness based on claw and hoof disorders or culling for leg problems;

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ISSN: 2046-0481

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