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Periodic lamb production by means of programmed lighting


Periodic lamb production by means of programmed lighting



Tierzucht 29(6): 252-253



Results of using a lighting programme previously described are summarised. During 1972-74, 2 groups of ewes were subjected to controlled lighting so that they lambed alternately at 4-mth intervals in Feb.-Mar. (713 females ), June-July (699 females ) and Oct.-Nov. (695 females ). The occurrence of oestrus in each season was 94, 93 and 92% resp., and the number of lambs born/ewe lambing averaged 1.63, 1.52 and 1.66.

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