oa Agroanimalia - Oestrous activity and lambing rates in ewes following varying periods of associatioo with vasectomized rams prior to the commencement of the mating period

Volume 7, Issue 4
  • ISSN : 0302-7104



Prior to the commencement of the annual breeding period in November, groups of ewes which had lambed in autumn were either (a) continuously associated with rams, (b) associated with and isolated from rams for alternate periods of 17 days, (c) joined with rams for one or two oestrous cycles or (d) isolated from rams.

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