Продуктивність і стан неспецифічної резистентності курей батьківського стада за використання в раціоні препарату «Ровабіо»

Abstract

Метою роботи було визначити оптимальну дозу мультиферментного препарату «Ровабіо» для курей м’ясного кросу Кобб-500. Залежно від дози, використання препарату «Ровабіо» дозволило підвищити несучість на середню несучку на 4,0-9,5 %, середню масу яйця – на 2,1-2,6 %, збереженість птиці на 1,4-2,9 %. Результати досліджень засвідчили позитивний вплив препарату «Ровабіо Ексель АП» на репродуктивні та гематологічні показники курей-несучок батьківського стада бройлерів Кобб-500, що дозволяє рекомендувати його до застосування

In conditions of intensive production of poultry products, the basis for feeding poultry is high-calorie compound feeds. However, due to the high content of no starch polysaccharides, namely beta-glucans, pentonases, fiber, pectin substances, phytates, which have antimetabolic characteristics, the efficient use of dietary nutrients is possible only with exogenous enzymes. The aim of the work was to determine the optimal dose of the multivalent enzyme Rovabio Excel AP, the main components of which are xylanase and glucanase, for Cobb-500 meat cross chickens at the age of 180-300 days and to establish indicators of egg productivity and non-specific resistance depending on the dose: 30, 50 and 70 g per 1000 kg of feed. The use of the Rovabio drug made it possible to increase egg laying on an average laying hen by 4.0–9.5%, on an initial laying hen – by 4.9–11.3%, the rate of egg laying – by 1.8-4.2%, and average egg mass – by 2.1-2.6%. The safety of chickens during the experiment was higher by 1.4-2.9%. When using a multienzyme drug, there was a tendency to an increase in the hemoglobin content and the number of red blood cells in laying hens, as well as an increase in the bactericidal activity of blood serum. This fact can be explained by the release of additional amounts of nutrients from the feed during digestion under the action of enzymes and their use in metabolic processes, namely during hematopoiesis. The research results indicate the positive effect of the drug Rovabio Excel AP on the reproductive and hematological parameters of laying hens of the broiler’s parent flock, which allows us to recommend it for use. The most effective dose of the enzyme preparation Rovabio Excel AP for hens is 50 g per 1000 kg of feed.