Pair-association in twin lambs before and after weaning

Shillito Walser, E. and Williams, T., 1986. Pair-association in twin lambs before and after weaning. Appl. Anita. Behav. Sci., 15: 241--245. Association between twin lambs before and after weaning and their association with their dam before weaning was observed in Dalesbred, Jacob, Border Leicester and Border Leicester x Jacob Lambs. There was no significant difference between breeds, but the females spent more time close to the ewe than the males. The proportion of close associations was less and intermediate associations were higher in twins of mixed sex. The major effect of weaning was an increase in pair-association for 2 days; by the third day, pairassociation had returned to pre-weaning levels. It is interesting that pair-association with non-castrated males increased after weaning.