The effect paragenetic factors on milk yield of sheep | Uticaj paragenetskih faktora na mlecnost ovaca
2002
Petrovic, M.P. | Zujovic, M. | Negovanovic, D. | Ruzic, D. | Strsoglavec, S., Institut za stocarstvo, Beograd - Zemun (Serbia)
Investigations were carried out in the region of Stara Planina mountain, Serbia, on population of Pirot Pramenka sheep breed, The effect of year, lactation, type of birth and number of offspring on milk yield was investigated. It was established that the effect of year as paragenetic factor varied from not significant to significant. Lactation had significat effect on milk yield since the lowest value for the milk quantity was registered in the first and the highest in the third lactation. Type of birth had no significant influence on investigated trait. The size of litter had significant influence on milk yield since higher quantity of milk was established in case of sheep with twins compared to sheep with single offspring.
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