Совершенствование технологических приемов доения для улучшения свойств вымени и повышения молочной продуктивности коров

2012 
The results of studies on the functional properties ofthe udder black and white breed with different krovnostyu of Holstein in the translation of a three-time milking twofold. Decrease in daily milk yield was found in the group of mixed blood of10.7% in the group with the 63rd krovnostyu by 9.9% in the group with 75 schy krovnostyu by 7.6%. Time spent on milking cows, the first group decreased by 24.2%, the second group by 27.5% and the third by 23.1%. The greatest increase in rate of milk flow was observed in animals with 63% foreign krovnostyu by 22.9%. The effect of probiotic treatment of udders of cows with a solution of various concentrations of the major indicators of milk production and milk quality. Daily milk yield increased by 2.71 kg in the group of cows treated with a solution of 5% concentration, at 2.46 kg a solution 2.5% concentration, at 1.01 kg without handling the udder. The mass fraction of fat and protein in the milk of cows of the groups varied slightly. The number of somatic cells in milk after the probiotic treatment of udders and the solution reduced to the end of the experiment has reached a minimum value up to 170 thousand / ml.
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