• • • Legume-gramineous silage in milking cow diet
Mixtures of legumes and gramineous, growing under sufficient water availability, provide more high-quality fodder, balanced in all the basic nutrition elements. The report specifies cutting periods of mixtures. Introduction of perennial bastard alfalfa “Vega 87” into legume-gramineous mixtures increased their productive longevity. Two legume species, mixed with gramineous, reduced their N requirements, improved feed value and fermentative processes in silage. Organic matter content of the silage made up 93.7% of feed dry matter. All the silage variants had optimal concentrations of lactic (75–87%) and acetic acids (12–21%). Silage consumption positively affected nutrient digestibility, intake of N, Ca and P and their metabolism in the organisms of lactating cows. Dry matter digestibility improved by 10.43% (Р < 0.05), organic matter — by 8.18% (Р < 0.05), crude fiber — by 12.16% (Р < 0.05), nitrogen-free extractive substances — by 5.71% (P < 0.05) and crude protein — by 2.50%. Experimental group consumed 3.38% more Ca than the control one. Ca balance in the control group was 7.01 g, which was 14.89 g less than in the experimental group. All the cows showed positive Ca and P balances, excluding any metabolic disorders in their organism.
Source: http://kormoproizvodstvo.ru/en/7-2018-2/, p. 36
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