[Grain silage in feeding of milking cows]
2008
Razumovskij, N.P. | Pakhomov, I.Ya. | Kuznetsova, T.S., Vitebsk State Academy of Veterinary Medicine (Belarus)
Determination of the efficiency of conservation of grain silage prepared from the following constituents of grain legumes crops in the conditions of the Republic of Belarus was realized: vetch (Vicia) + oat (Avena sativa); oat + Austrian winter pea (Pisum arvense) + mallow (Malva). Results of the realized experiment showed the high efficiency of grain silage conservation: per 1 kg of vetch and oat mixture the yield of feeding units was 48,5 c. while per 1 hectare of perennial grasses after silage preparation the yield of feeding units was only 24,2 c. Yield of the digestible protein per 1 ha was 4,85 and 1,75 c. accordingly. The chemical composition of oat + Austrian winter pea + mallow mixture showed that per 1 kg of grain silage there was stated 0,26 feeding units, 0,33 kg of dry matter, 44 g of rough matter, 26,4 g of digestible protein, 8 g of crude fat and 64 g of crude fiber. Fodder conservation on the basis of annual legume-grass mixtures harvesting without thrashing made it possible to produce the ecologically safe bulky feed with the minimum 9,5 MJ of energy concentration in 1 kg of dry matter and the minimum content of the digestible protein of 105 g per 1 feeding unit. Application of grain silage in the rations of milking cows made it possible to increase the production profitability level of milk on 8-10% due to the lowering of the prime costs of fodders, lowering of feed consumption and increasing of cow yielding capacity
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