Validation of 46 loci associated with female fertility traits in cattle

BMC Genomics

Table 6 Heritability estimates for fertility traits in dairy cattle worldwide¹

Country(s)	Citation²	Trait³	Breed(s)	h ²
Austria, Germany, and Luxembourg	6	NRH	Holstein, Jersey, Red Dairy Cattle	0.012
Austria, Germany, and Luxembourg	52	FSh	Holstein, Jersey, Red Dairy Cattle	0.014
Canada	6	NRH	Brown Swiss, Guernsey, Holstein	0.015
Czech Republic	6	CR^a	Holstein	0.039
Denmark, Finland, and Sweden	6	CR^b	Holstein	0.01
Flanders and Netherlands	6	NRH	All breeds	0.018
France	6	HCO	Brown Swiss, Holstein	0.02
Iran	54	INS^a	Holstein	0.046
Israel	55	HCR^a	Holstein	0.0207
Italy	56	INS^b	Brown Swiss	0.026
Norway	5	NRH	Norwegian Red Cattle	0.01
Poland	6	NRH	Holstein	0.019
Switzerland	6	NRH	Holstein	0.013
United States	6	HCR^b	Aryshire, Brown Swiss, Guernsey, Holstein, Jersey, Milking Shorthorn	0.01
United States	57	HCR^b	Holstein	0.04
United States	10	HCR^c	Brown Swiss, Holstein, Jersey	0.01
United States	Current Study	HCR^a	Holstein	0.61

¹Represents a sampling of studies that report heritability estimates for fertility traits
²Citations are numbered as they appear in the literature cited
³Abbreviations for traits tested: CR^a and HCO is conception rate for up to 3 services for maiden heifers, CR^b is conception rate for maiden heifers for an undefined number of services, FSh is the interval from first to successful insemination which ranged from 0 to 600 days, INS^a is the number of inseminations to conception for up to 9 services in maiden heifers, INS^b is the number of inseminations to conception with number of services unreported, HCR^a is the number of services to achieve conception for up to 5 services for maiden heifers, HCR^b is the number of services to achieve conception for up to 7 services for maiden heifers, HCR^c is the number of services to achieve conception and is undefined, and NRH is the nonreturn rate of 56 days in maiden heifers

ISSN: 1471-2164