Liveweight variation in Sheeplan flocks


D.L. Johnson, J.N. Clarke, C.A. Robinson

Ruakura Animal Research Station, Hamilton

Proceedings of the New Zealand Society of Animal Production. 1980, 40: 254-257

Estimates of the variation in lamb and hogget liveweights were obtained for lambs born in 74 dual-purpose Sheeplan flocks in 1977. It was found that although Sheeplan currently takes account of season by assuming appropriate standard deviations for weaning, autumn, winter and spring liveweights, there is considerable additional variation between flocks which can be accounted for by other know effects. A procedure for standardizing liveweight deviations is suggested.

Keywords: NZSAPAB;


Last Updated 12-09-1998