Comparative study on the composition of milk from cows fed by conventional and organic feedstuffs | Сравнително проучване върху състава на мляко от крави, хранени с конвенционални и екологични фуражи
2010
Ivanova, T., Agricultural Institute, Shumen (Bulgaria) | Petkova, M., Institute of Animal Science, Kostinbrod (Bulgaria)
In Bulgaria has favorable climatic conditions and traditions for milk production. Recently revealed good opportunities for organic dairy products. This study was conducted to test the effects of feeding lactating cows by conventional or organic feedstuffs on milk both production and composition. Twelve lactating Black and White cows - BW = 620 ± 28 kg; at the beginning of the lactation were separated to two treatments for 45 days. Cows were fed typical diets during the spring - corn silage, and wheat straw and compound feed with supplements of Optigen and Yellow. Feed intake was similar in the two groups. No differences were observed in the milk yield under the influence of organic nutrition. Generally, both milk quality and composition were not influenced in great size. This experiment demonstrated that producing of organic feedstuffs by using manure instead of ammonium nitrate is adjusted to use in lactating cows without any risk for level of milk production and milk composition.
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