Experience of correction of diets of broilers in the conditions of poultry farms of republic of Belarus

We analyzed the use of dietary supplements in the farms of Belarus in feeding broiler chickens. The study was conducted in the conditions of poultry farms of the Republic of Belarus: "Vitkonproduct" Shumilinskaya broiler poultry factory, "Gorodok poultry farm" of city distric of Vitebsk region, "Vitebsk broiler poultry factory" of Vitebsk district in Vitebsk region, "Poultry factory Friendship" of the Baranovichi distric of Brest region, "Poultry factory Oranchitskoe" Pruzhany district of Brest region. The aim of the study was to analyze the nature of diets in poultry farms and the formulation of scientific and economic experiments on the addition of biologically active stimulants to the diet. Thus, it was assessed their influence on key indicators of productivity of agricultural poultry. Was produced: Analysis of feed for broiler chickens at poultry farms in the Republic of Belarus and Keeping score, average live weight, average daily gain when added to diets of various biologically active stimulants. Full-fledged high-protein feed KD-P-5 "Starter" (from 1 to 20 days), KD-p-6B "Grover" (from 21 to 33 days), KD-p-6 "Finisher" (from 34 days before slaughter) were used as the main diet for experimental birds; the components of the feed correspond to the technical conditions in the Republic of Belarus. As a result of researches it is revealed: the bird receives full - fledged rations which are balanced on all normative indicators. However, such components as Immunostimulants, probiotics, prebiotics are practically absent in rations. In this regard, the weight gain is on average 40 gr less than was planned at each stage of poultry production. During the experimental studies it was found that the introduction of biologically active additives into the diet of poultry increases the safety of broiler chickens, the average living weight, the average daily increase, normalizes metabolism in young animals, the func tional state of the liver remains. There is also an increase in profitability of production.

Биологически активные добавки, цыплят а-бройлеры, продуктивность, пророст живой массы, иммуностимулятор, про- и пребиотики, птицефабрика, рационы, корма в птицеводстве, Dietary supplements, broiler chickens, productivity, weight gain, immune stimulant, Probiotics and prebiotics, poultry, rations, feed in the poultry industry

1. Кaпитонова Е. А. Рекомендации по применению ферментных препаратов "Экозим", "Витазим" и биокорректора "ВитоЛАД" в промышленном птицеводстве / Е. А. Капитонова, М. А. Гласкович, Л. В. Шульга ; Витебская государственная академия ветеринарной медицины. -Витебск. ВГАВМ, 2010. - 32 с. табл. -Библиогр. с. 25-27

2. Гласкович М. А. Иммуностимуляторы природного происхождения в птицеводстве / М. А. Гласкович // Наше сельское хозяйство. - 2010. - № 10. - С. 57- 61. 16. Иммуностимулятор природного происхождения в птицеводстве. Журнал ВАК. Наше сельское xозяйство. 2010. № 10. С 57-61.

3. Гласкович М. А. Профилактика технологических стрессов в бройлерном птицеводстве при введении в рацион экологически чистых препаратов / М. А. Гласкович // Ученые записки учреждения образования "Витебская государственная академия ветеринарной медицины". научно-практический журнал. - Витебск, 2009. -Т. 45, вып. 1, ч. 2. - С. 15 - 18.

4. Xaрламов, К.В. Влияние триптофана на продуктивные качества цыплят-бройлеров /К.В. Харламов, В.А. Афанасьева// Достижения науки и техники АПК. - 2010. -No 8. -С. 51-52.

5. Фризен В.Г., Карапетян А.К.,Сошкин Ю.В., Кротова О.Влияние рациона на физиологические показатели кур [Текст]/ В.Г. Фризен, А.К. Карапетян, Ю.В. Сошкин, О. Кротова // Птицеводство. -2013. -No4. -С. 26-27.195.

6. "Phasing out certain antibiotics use in farm animals", Dec 11, 2013. Updated Feb 25, 2015. Retrieved on 28 October 2016.

7. Gorksi, B. Nutritional Analysis of Pastured Poultry Products. APPPA GRIT! American Pastured Poultry Producers Association. Vol. 11. p1-3. 2000.

8. Weeks, C.A. & Nicol, C.J. 2006. Preferences of laying hens. World’s Poultry Science Journal, 62. 296-307.

9. Nicol, C.J., Caplen, g., Edgar, J. & Browne, W.J.2009. Associations between welfare indicators and environmental choice in laying hens. Anim. Behav., 78. 413-424. doi.10.1016/j.anbehav.2009.05.016