2021
DOI: 10.33920/sel-03-2106-04
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The effectiveness of feeding complex mineral and vitamin feed additive «Nadezhda» to lactating cows

Abstract: The feasibility of using the complex mineral and vitamin feed additive “Nadezhda” in the rations of lactating first-calf heifers of Black-and-White breed has been examined in the article. It has been established that feed contain a low content of elements such as calcium, phosphorus, magnesium, sulfur, manganese, copper, zinc and cobalt. The ratio of nutrients and minerals, the degree of their availability for assimilation by the body does not provide their need. The use of the complex mineral and vitamin feed… Show more

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