The effect of shearing ewes during the mating period on the
subsequent lambing pattern
R.A.S. Welch, R. Kilgour; G.A. Robson, M.E. Smith and E.T.
Williams
Ruakura Animal Research Station, Hamilton; Ministry of
Agriculture and Fisheries, Hamilton and Te Miro, R.D. 1, Cambridge
Proceedings of the New Zealand Society of Animal Production.
1979, 39: 100-102
Four hundred and thirty-nine Coopworth ewes had oestrus
synchronized by progestagen-impregnated intravaginal sponges. Mating
commenced at the second oestrus after sponge withdrawal. Approximately
10 days after mating, half of the sheep were shorn. The percentage of
ewes lambing in 15-day periods was 43, 44, 7 and 5 for unshorn and 31,
3, 19 and 47 for shorn 3- to 9-year-old ewes, and 38, 41, 15 and 6 for
unshorn and 30, 0, 23 and 38 for shorn 2-year-old ewes.
Keywords: NZSAPAB;
Last Updated 12-09-1998
