Key	Year	Country	Breed	Number of lactations	Length of the lactations (days)	Milk yield per recorded cow (kg)	Milk per cow in 305 days (kg)	Percent of fat content (%)	Percent of protein content (%)	Calving interval (days)	Others	E-mail address of the responsible
1	2002	Argentina	Holstein	94 517	326	5 592	6 127	3.50	2.89	428		info@acha.org.ar