FACTORS AFFECTING MILK-YIELD AND REPRODUCTIVE-PERFORMANCE

[31] FERTILITY IN NEW-YORK ARTIFICIALLY INSEMINATED HOLSTEIN HERDS IN DAIRY-HERD IMPROVEMENT [J]. JOURNAL OF DAIRY SCIENCE, 1975, 58 (05) : 718 - 723

[32] ASSOCIATIONS BETWEEN SERVICE INTERVAL, INTERVAL FROM 1ST SERVICE TO CONCEPTION, NUMBER OF SERVICES PER CONCEPTION, AND LEVEL OF BUTTERFAT PRODUCTION [J]. JOURNAL OF DAIRY SCIENCE, 1959, 42 (07) : 1157 - 1170

[33] TRIMBERGER GW, 1956, NEW YORK AGR EXP STN, V911

[34] INTENSIFIED DAIRY OPERATIONS AND THEIR EFFECT ON PERIPARTURIENT DISEASES AND POSTPARTUM REPRODUCTION [J]. JOURNAL OF DAIRY SCIENCE, 1974, 57 (03) : 354 - 360

[35] EFFECTS OF EARLY POSTPARTUM BREEDING IN DAIRY-CATTLE [J]. JOURNAL OF ANIMAL SCIENCE, 1974, 38 (02) : 339 - 346

[36] EFFECTS OF DAYS DRY AND DAYS OPEN ON MILK AND BUTTERFAT PRODUCTION OF HOLSTEIN-FRIESIAN CATTLE [J]. CANADIAN JOURNAL OF ANIMAL SCIENCE, 1967, 47 (01) : 85 - &

[31] FERTILITY IN NEW-YORK ARTIFICIALLY INSEMINATED HOLSTEIN HERDS IN DAIRY-HERD IMPROVEMENT [J]. JOURNAL OF DAIRY SCIENCE, 1975, 58 (05) : 718 - 723

[32] ASSOCIATIONS BETWEEN SERVICE INTERVAL, INTERVAL FROM 1ST SERVICE TO CONCEPTION, NUMBER OF SERVICES PER CONCEPTION, AND LEVEL OF BUTTERFAT PRODUCTION [J]. JOURNAL OF DAIRY SCIENCE, 1959, 42 (07) : 1157 - 1170

[33] TRIMBERGER GW, 1956, NEW YORK AGR EXP STN, V911

[34] INTENSIFIED DAIRY OPERATIONS AND THEIR EFFECT ON PERIPARTURIENT DISEASES AND POSTPARTUM REPRODUCTION [J]. JOURNAL OF DAIRY SCIENCE, 1974, 57 (03) : 354 - 360

[35] EFFECTS OF EARLY POSTPARTUM BREEDING IN DAIRY-CATTLE [J]. JOURNAL OF ANIMAL SCIENCE, 1974, 38 (02) : 339 - 346

[36] EFFECTS OF DAYS DRY AND DAYS OPEN ON MILK AND BUTTERFAT PRODUCTION OF HOLSTEIN-FRIESIAN CATTLE [J]. CANADIAN JOURNAL OF ANIMAL SCIENCE, 1967, 47 (01) : 85 - &