ESTRUS AFTER CONCEPTION IN A HERD OF HOLSTEIN-FRIESIAN CATTLE

[1] BRANTON C, 1949, ARTIFICIAL BREEDERS, V1, P5

[2] CLAPP H., 1934, Cornell Veterinarian, V24, P309

[3] Donald H. P., 1943, VET REC, V55, P297

[4] DONOHO HR, 1955, J DAIRY SCI, V38, P602

[5] GILMORE LO, 1952, DAIRY CATTLE BREEDIN, P125

[6] MIRSKAJA LJ, 1941, IZVEST ZOOTEH, V4, P80

[7] MORRISON RA, 1957, WASHINGTON AGR EXPT, V25

[8] SNEDECOR GW, 1946, STATISTICAL METHODS

[9] THE OCCURRENCE OF ESTRUS IN PREGNANT EWES [J]. JOURNAL OF ANIMAL SCIENCE, 1956, 15 (04) : 978 - 983

[1] BRANTON C, 1949, ARTIFICIAL BREEDERS, V1, P5

[2] CLAPP H., 1934, Cornell Veterinarian, V24, P309

[3] Donald H. P., 1943, VET REC, V55, P297

[4] DONOHO HR, 1955, J DAIRY SCI, V38, P602

[5] GILMORE LO, 1952, DAIRY CATTLE BREEDIN, P125

[6] MIRSKAJA LJ, 1941, IZVEST ZOOTEH, V4, P80

[7] MORRISON RA, 1957, WASHINGTON AGR EXPT, V25

[8] SNEDECOR GW, 1946, STATISTICAL METHODS

[9] THE OCCURRENCE OF ESTRUS IN PREGNANT EWES [J]. JOURNAL OF ANIMAL SCIENCE, 1956, 15 (04) : 978 - 983