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Milk production and composition of milk of native stara zagora sheep and their crossbreds with the east friesian breed



Milk production and composition of milk of native stara zagora sheep and their crossbreds with the east friesian breed



Zhivotnov"dni Nauki 24(12): 28-34



With the purpose to establish the effect of the East Friesian breed on quantity and qualitative composition of milk on employment of single crossbreeding with Native Stara Zagora ewes, an experiment was conducted with a total number of 565 native Stara Zagora ewes, crossbreds of East Friesian rams -F1, R1, R2. The signel crossbreeding of East Friesian breed with Native Stara Zagora ewes had a marked impact on milk production of first, second, and third lactation. F1 crossbred milk increase was by 25.62% compared to coevals in the flock and by 34.80% to dams of crossbreds. Composition of milk i.e. fat, protein and dry matter content was also affected by the ameliorating breed. Milk of F1 crossbreds was of lower fat and protein content but on basis of their higher milk production the quantity of fat and protein for a lactation period was higher.

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Accession: 005902356

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