Crab shell meal in cattle feeding

Abstract

For the first time, investigations have been carried out on use of a feed additive of crab shell meal in diets for feeding cows in a period of 4–5 months after calving and young cattle at the age of 3 to 6 months. The experimental results confirm that use of the feed additive checks a decline in average daily milk yield by 10.52 %, increases milk fat content by 1.31 % relative to a check group. Weight gain in the experimental calves group exceeded a performance of the check group by 3.75 kg (4.59 %). On the basis of the fulfilled studies, it is concluded that the feed additive of crab shell meal may be used in order to increase a general resistance and milk productivity of cattle in Magadan Region