PREVENTION OF METABOLIC DISTURBANCES OF NEWLY CALVED COWS

Abstract

Newly calved cows that do not receive a ration corresponding to their lactation performance before calving and during milking period become susceptible to ketosis with its adverse consequences. This disease is usually detected within the first 10-40 days after calving: cows lose weight very quickly and reduce milk productivity; they have many problems during calving and milking. Cows with high milk productivity are more prone to ketosis than cows of low productivity. Inclusion of propionates in the rations of cows helps to reduce formation of ketone bodies. The research was carried out atOOO Krasnoe Sormovo, Krasnoarmeiskiy district of the Chuvash Republic. The duration of the production experiment was 60 days before calving and 100 days afterwards. The results obtained during the research showed that the cows of the experimental group, whose ration included 150 g of propylene glycol per head per day two weeks before and 250 g within four weeks after calving, were healthy, their daily milk yield was 2.6 kg more than that of the control group of cows, milk productivity during the milking period was 4.42%. It allowedto obtain 4.2 tons more milk from the cows of the experimental group than from the cows of the control group. As far as the control group is concerned, 10% of the cows of this group had ketone bodies in milk,consequently, the same number of cows had a low fatness index, which indicated a lack of energy in the body in the period after calving.