Optimal Live Weight and Productivity of Sheep from the Newly Created Milk Sheep Breed

N. STANCHEVA
Agricultural Institute, BG-9700 Shumen, Bulgaria

Abstract

STANCHEVA, N., 2002. Optimal live weight and productivity of sheep from the newly created milk sheep breed. Bulg. J. Agric. Sci., 8: 421–428

The objective of this study was to predict the limitation of live weight trait at weaning of lambs and sheep at different age (1.5, 2.5 and 3.5 years of age) from the newly created milk sheep breed in order to reduce the expenses per 1 kg live weight.
It was established that lambs from the newly created milk sheep breed with live weight at weaning from 31.0 to 35.0 kg and sheep at 1.5, 2.5 and 3.5 years of age – from 71.0 to 75.0 kg combined comparatively better their absolute and relative milk yield and biological fertility than larger and smaller sheep.

Key words: milk yield, complete lactation, 200-day lactation, dairy milk yield, biological fertility, 1st and 2nd yeaning