EFFECT OF PROBIOTIC PROFLORA PREMIX ON MILK YIELD AND MILK COMPOSITION OF SYNTHETIC POPULATION BULGARIAN MILK

Nedka Dimova, Staika Laleva

Abstract: The object of this study was to determine the effect of probiotic Proflora Premix (Chemifarma) on the milk yield and milk composition in grazing dairy ewes of Synthetic population Bulgarian milk. The study was conducted with ewes from the flock, raised in the Agricultural institute – Stara Zagora, in 2010 and lasted 60 days. At the beginning and at the end of the experiment, sheep were weighted and an assessment of the body condition score (BCS) of the ewes was made.
The experimental group received 6g probiotic Proflora Premix (Chemifarma), containing Saccharomyces cerevisiae. Supplement was provided to 16 sheep, equal to the animals in the control group. Animals were leveled by days after lambing, type of lambing and average daily milk yield. The following parameters were monitored: milk yield at the morning milking, urea, milk fat, non-fat solids, dry matter, protein and lactose.
On the basis of the results obtained, we could make the following conclusions: Probiotic Proflora Premix (Chemifarma) had a positive effect on milk yield (P < 0.05) in sheep from Bulgarian synthetic population for milk, raised in pasture conditions. At the end of the study period the percentage of milk fat was decreasing in the experimental group (P < 0.05). Probiotic did not influence the content of proteins, non-fat solids and urea in milk. These results most likely were due to the interaction between the additive and the diet.

Keywords: ewes; milk composition; milk yield; probiotic

Date published: 2017-05-18