In modern conditions of intensive dairy cattle breeding, it is necessary to pay special attention to the restoration of the organism of dairy cows in order to maintain a high rate of recovery of the breeding stock. The introduction of the feed concentrate "Cowfresh" into the main diet of cows during the initial lactation period for a short period of time had a positive effect on the productive and reproductive indicators of dairy cows. The research was conducted in 2020 in the conditions of the livestock complex "MilANKa" (Gribskoye, Amur region). The experiments were carried out on newly-calved red-and-white cows from the first to the third lactation, selected according to the analogues pair’s principle, in three experimental groups and one control group of 10 heads each. The purpose of the scientific and economic experience was to evaluate the effectiveness of the use of the feed concentrate "Cowfresh" during the cow calving period for productive, reproductive and economic indicators at the first lactation phase. The duration of the experiment was 110 days from the moment of cow calving. The experiment consisted of two stages. The first stage was giving an aqueous solution of the feed concentrate "Cowfresh" in different dosages to different experimental groups for 10 days once a day. The second stage was monitoring the productive and reproductive qualities of experimental cows for 100 days. As a result of the experiment, the positive effect of the feed concentrate "Cowfresh" on the recovery rate after calving, productive and reproductive indicators of cows was established. The optimal dosage was 200 g of the feed concentrate "Cowfresh" per 100 kg of live body weight. At the same time, the average milk yield per one cow for 100 days of lactation in the second experimental group was 2 768.5 kg of milk of basic fat content, which was 25.7 % more than the indicator of the control group.

Roini L. Sharvadze, Babukhadiya Ketevan R., Terekhov Sergey B.

1. Abylkasymov D. A., Ionova L. V., Kamynin P. S. Problema vosproizvodstva krupnogo rogatogo skota v vysokoproduktivnykh stadakh [The problem of reproduction of cattle in highly productive herds. Zootekhniya. – Zootechny, 2013; 7: 22–29 (in Russ.).
2. Agarkov N. Kachestvo moloka i rentabel'nost' proizvodstva [Milk quality and production profitability]. Ekonomika sel'skogo khozyaistva Rossii. – The economy of agriculture in Russia, 2011; 5: 31 (in Russ.).
3. Aliev A. A. Obmen veshchestv u zhvachnykh zhivotnykh [Metabolism in ruminants], Moskva, Inter, 1997, 419 p. (in Russ.).
4. Artyukh V. M., Chomoev A. M., Varennikov M. V. Sroki osemeneniya vysokoproduktivnykh korov posle otela [Terms of insemination of highly productive cows after calving]. Zootekhniya. – Zootechny, 2004; 6: 24–27 (in Russ.).
5. Arkhipov A. B. Organizatsiya kontrolya polnotsennosti kormleniya vysokoproduktivnykh korov [Organization of control over the usefulness of feeding highly productive cows]. Veterinariya sel'skohozyajstvennyh zhivotnyh. – Veterinary medicine of farm animals, 2005; 8: 61–67 (in Russ.).
6. Barinov A. Balansiruem mineral'noe pitanie krupnogo rogatogo skota [Balancing the mineral nutrition of cattle]. Zhivotnovodstvo Rossii. – Animal husbandry of Russia, 2013; 5: 67 (in Russ.).
7. Buryakov N. P. Detalizirovannoe kormlenie korov uvelichit sroki ikh ispol'zovaniya [Detailed feeding of cows to increase the terms of their use]. Kormlenie sel'skokhozyaistvennykh zhivotnykh i kormoproizvodstvo. – Feeding of farm animals and feed production, 2006; 11: 43–47 (in Russ.).
8. Buryakov N. P. Kormlenie vysokoproduktivnogo molochnogo skota [Highly productive dairy cattle feeding], Moskva, Prospekt, 2009, 416 p. (in Russ.).
9. Buryakov N. P. Kormlenie stel'nykh sukhostoynykh i doynykh korov [Pregnant dry and dairy cows feeding]. Molochnaya promyshlennost'. – Dairy industry, 2008; 4: 37–39 (in Russ.).
10. Vyayzenen G. N., Unguryanu Yu. V., Vyayzenen A. G., Vasiliev V., Golovey V. Vliyanie skarmlivaniya kormovykh dobavok laktiruyushchim korovam pri razdoe na produktivnost' [The effect of feed additives feeding to lactating cows during milking on productivity]. Glavnyy zootekhnik. – Chief Animal Technician, 2015; 4: 23–29 (in Russ.).
11. Griga E. N. Dispanserizatsiya korov posle otela [Clinical examination of cows after calving]. Zootekhniya. – Zootechny, 2003; 5: 20–38 (in Russ.).
12. Dobrovol'skii B. G. Vliyanie vitaminno-mineral'nykh kormov na vosproizvoditel'nuyu sposobnost' korov [The effect of vitamin and mineral feed on the reproductive ability of cows]. Zootekhniya. – Zootechny, 1998; 2: 21–29 (in Russ.).
13. Eremin S. P. Metody rannei diagnostiki patologii organov razmnozheniya u korov [Methods of early diagnosis of pathologies of reproductive organs in cows]. Veterinariya. – Veterinary medicine, 2004; 4: 38–41 (in Russ.).
14. Krasnoshchekova T. A., Tuaeva E. V., Babukhadia K. R., Nimaeva V. Ts. Optimizatsiya kormleniya krupnogo rogatogo skota i ptitsy v usloviyakh Priamur'ya: monografiya [Optimization of cattle and poultry feeding in the conditions of the Priamurya: monograph], Blagoveschensk, Dal'nevostochnyj gosudarstvennyj agrarnyj universitet, 2010, 126 p. (in Russ.).
15. Plokhinskii N. A. Rukovodstvo po biometrii dlya zootekhnikov [Guide to Biometrics for Livestock Technicians], Moskva, Kolos, 1969, 256 p. (in Russ.).
16. Sharvadze R. L. Vklyuchenie propilenglikolya v ratsiony pri razdoe korov [Inclusion of propylene glycol in milker’s rations after calving]. Dal'nevostochnyj agrarnyj vestnik. – Far Eastern Agrarian Herald, 2017; 3 (43): 158–161 (in Russ.).
17. Yakovlev V. B., Kornev G. N. Analiz effektivnosti sel'skokhozyaistvennogo proizvodstva [Analysis of the efficiency of agricultural production], Moskva, Rosagropromizdat, 1990, 270 p. (in Russ.).