Relationship between calving season and dairy performance
Relationship between calving season and dairy performance
Nevada, V.Y.; Golovatyuk, N.I.
Molochno M"yasne Skotarstvo 39: 47-50, 5
1975
Data are tabulated on dairy performance of 66 Russian Simmental (RS) heifers and 211 cows, and of 162 Jersey X RS heifers and 338 cows, calving in winter, spring, summer or autumn. The highest milk yields were recorded for 12 RS heifers calving in summer, for 49 crossbred heifers calving in winter, for 44 RS cows calving in autumn and for 106 crossbred cows calving in winter.