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THE INTERDEPARTMENTAL SUBJECT SCIENTIFIC DIGEST PIG BREEDING

and agroindustrial production

ACTUAL ISSUES OF IMPROVING THE QUALITY OF MILK IN THE CONDITIONS OF ITS INDUSTRIAL PRODUCTION


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UDC: 636.2.034.082:637.12.04

DOI: 10.37143/2786-7730-2023-2(80)03

REFERENCIS АРА style: Elfeel, A. A. A., Susol, R. L., & Kirovych, N. O. (2023). Aktualni pytannia pidvyshchennia yakosti moloka v umovakh yoho promyslovoho vyrobnytstva [Actual issues of improving the quality of milk in the conditions of its industrial production]. Svynarstvo i ahropromyslove vyrobnytstvo [Pig Breeding and Agroindustrial Production]. Poltava, 2(80), 42-54 [in Ukrainain]. doi: 10.37143/2786-7730-2023-2(80)03

A. A. A. Eiffe postgraduate
ORCID:https://orcid.org/0000-0003-0821-1964
E-mail:manalaraiby87@gmail.com
Одеський державний аграрний університет, вул. Канатна, 99, м. Одеса, Україна, 65039
R. L. Susol Doctor of Agricultural Sciences, Professor of the Department of Production and Processing Technology livestock products
ORCID:https://orcid.org/0000-0003-2395-1282
E-mail:r.susol@ukr.net
Odesa State Agrarian University, Kanatna Str., 99, Odesa, Ukraine, 65039
N. O. Kirovych , k.. s.-g. Ph.D., associate professor, head department of technology of agricultural production and processing of livestock products
ORCID:https://orcid.org/0000-0002-9177-8832
E-mail:kirovich.natalya.2017@gmail.com
Odesa State Agrarian University, Kanatna Str., 99, Odesa, Ukraine, 65039

Abstract

Goal. To determine the actual issues o f improving the quality o f milk in the conditions o f its industrial production in two directions - increasing the fa t content o f milk due to the optimization o f the level offodder with regulation o f the content o f neutral detergent fiber in the diet o f cows and optimization o f the titrated acidity o f milk during the crisis period o f its exacerbation in the winter period due to the use o f scar buffer. Methods. Scientific and economic experiments were carried out in the conditions o f the State Enterprise "EE “Andriivske" o f the Bilhorod-Dnistrovskyi district o f the Odesa region according to the methods generally accepted in dairy cattle breeding. The quality o f milk was studied in the educational and scientific laboratory o f the Department o f Technology o f Production and Processing o f Livestock Products o f Odesa State Agrarian University. It is possible to improve the quality o f milk in terms o f increasing its fa t content, first o f all, by increasing the content o f neutral detergent fiber in the diet. The results. With the increase in the content o f NDC in the feeding rations o f the cows o f the experimental groups (on the example o f the period o f early lactation), the percentage o f m ilkfat also increases. In the milk o f cows o f the I-IV experimental groups, the fa t content was higher compared to the control group by 0.12%, respectively; 0.19% (p < 0.05); 0.28% (p < 0.01); 0.42% (p < 0.001). Provided that the cows o f all groups had a similar genotype, age and lactation phase, the obtained results prove the direct influence o f the NDC level on the fa t content in milk. Conclusions. An increase in the daily dose o f rye silage in the diets o f the cows o f the research groups ensured an increase in the neutral detergent fiber index, a decrease in the starch content and optimization o f the total starch + sugar index, which is a preventive measure fo r rumen acidosis on the one hand, and on the other hand makes it possible to produce milk with an increased content o f fat and protein and the optimal ratio offat: protein in it. The supplementation o f the diet with the preparation Clinofid, as a buffer o f the rumen, in the amount o f 50 g / head. per day optimizes the index o f titrated acidity o f the milk o f the experimental group o f cows, which was 1.6°Tor 9.0% (р < 0 .0 1 ) less compared to the milk o f the control group cows, which according to the physicochemical characteristics o f the milk corresponds to the norm fo r the breed "extra" according to DSTU 3662: 2018.

Key words: dairy cows, feeding ration, fiber, rumen buffer, milk quality, titrated acidity, organoleptic properties o f milk

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