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- [3] USE OF PROSTAGLANDIN IN COWS WITH UNOBSERVED ESTRUS [J]. ACTA VETERINARIA SCANDINAVICA, 1981, : 343 - 352
- [4] MANIFESTATION OF ESTRUS IN DAIRY-COWS [J]. CANADIAN JOURNAL OF ANIMAL SCIENCE, 1986, 66 (01) : 317 - 317
- [8] FATS FOR LACTATING DAIRY-COWS [J]. SOUTH AFRICAN JOURNAL OF ANIMAL SCIENCE-SUID-AFRIKAANSE TYDSKRIF VIR VEEKUNDE, 1991, 21 (01): : 1 - 10